Reliable DDX Double Interlock - Type D Preaction System Instructions

Bulletin 750 Rev. B

Model DDX Double Interlock

Preaction System – Type D

2” (50 mm), 2½” (65 mm), 3” (80 mm),

76 mm, 4” (100 mm), 6” (150 mm),

165 mm & 8” (200 mm)

Instructions for

Installation, Operation, Care, and Maintenance

7 to 10 psi (0,5 to 0,7 bar) Pneumatic Supervising

Pressure with Electric/Pneumatic Actuation Controlled by a Cross-Zoned Releasing Control Panel

Type D

• Available with 175 psi (12,1 bar) or 300 psi

(20,7 bar) Rated Solenoid Valve

• Externally Resettable Clapper

• One Main Drain

Reliable Automatic Sprinkler Co., Inc., 103 Fairview Park Drive, Elmsford, New York 10523

General

Type D Double Interlock Preaction Systems are designed for water sensitive areas that require protection from inadvertent water flow into the sprinkler system piping, but where a mechanical backup for the electric release is not required. Typical applications for this type of trim are libraries and computer server rooms.

To flow water into a Type D Double Interlock Preaction System, two events must take place. A fire detection device must operate, and the low pressure switch must be operated by the loss of system air or nitrogen pressure due to sprinkler operation (see note 1 below). These two signals must coexist at the releasing control panel, which only then will energize the normally closed solenoid valve (175 psi (12,1 bar) or 300 psi (20,7 bar) rated), causing the water flow into the system.

These systems utilize fire detection devices and system air pressure as separate zones (inputs) to a cross-zoned releasing control panel. The solenoid releasing valve remains closed until energized by the releasing control panel. This will occur only when both a fire detection device is operated and the low air pressure switch has detected sufficient loss of system air pressure (sprinkler operation).

In the event that the system piping is ruptured, or a sprinkler head is accidentally opened, the low air pressure switch will operate and an alarm will sound. The Model DDX Deluge Valve, however, will not be released to flow water since the solenoid valve remains closed due to the cross-zoned control panel configuration. The same result would occur if a fire detection device were falsely operated. The control panel will activate an alarm, however again, the Model DDX Deluge Valve will not flow water due to the cross-zoned control panel configuration.

This requirement for both a detector to operate and the loss of system air pressure before the Model DDX Deluge Valve releases water into a preaction system assures maximum protection against inadvertent water flow before a sprinkler is open.

At the heart of Reliable’s Type D Double Interlock Preaction

System is the Model DDX Deluge Valve. This Deluge Valve is a hydraulically operated, straight through design, latching type valve (see Fig. 1). System maintenance is simplified since the

Model DDX Deluge Valve can be reset externally without cover removal. This is accomplished by pushing in and turning the external reset knob at the rear of the Deluge Valve (see Fig. 1).

This feature provides a significant system restoration time advantage.

The Reliable Model DDX Type D Double Interlock Preaction

System trim set (see Fig. 2 & Fig. 3) provides all of the necessary equipment for connections to the Model DDX Deluge Valve’s pushrod chamber inlet and outlet ports, a 1¼” (30 mm) main drain on 2” (50 mm), 2½” (65 mm), 76 mm and 3” (80 mm) valve sizes or a 2” (50 mm) main drain on 4” (100 mm), 165 mm, 6”

(150 mm) and 8” (200 mm) valve sizes, alarm devices, air supply, water supply and required pressure gauges. This trim set is available in individual (loose) parts, in time-saving, segmented assembled kit forms or fully assembled to the Model DDX Deluge Valve (with or without a control valve).

Listings & Approvals:

(Only when used with Reliable’s Trim Sets.)

1. Reliable’s Type D Double Interlock Preaction Systems

2” (50 mm), 2½” (65 mm), 76 mm and 3” (80 mm), 4”

(100 mm), 165 mm, 6” (150 mm) and 8” (200 mm) are

Factory Mutual Approved Refrigerated Area Sprinkler

Systems for use in refrigerated rooms or buildings. Refrigerated area sprinkler systems are FM Approved as complete systems. Systems are FM Approved for use with thermal detectors and Class A detector wiring only.

2. Reliable’s Type D Double Interlock Preaction Systems

2” (50 mm), 2½” (65 mm), 76 mm, 3” (80 mm), 4” (100 mm), 165 mm, 6” (150 mm) and 8” (200 mm) are Underwriters Laboratories, Inc. Listed and UL certified for

Canada (cULus) in the Special System Water Control

Valve-Double Interlock Type (VLJH) category.

3. The NYC acceptance number for this system is MEA

258-93-E.

The Reliable Model DDX Type D Double Interlock Preaction

System is UL Listed and FM Approved only when used with the trim components shown in Fig. 2 & 3.

Note 1: Wherever the word “air” is used in this bulletin as a reference to the pneumatic pressure source it shall also mean “air or nitrogen.”

2.

Fig. 1

Fig. 2

Small DDX Type D Trim (Refer to Fig. 2)

Item

No.

Part No.

Galvanized Black Pipe

Description

1

2

3

4

18

19

20

21

22

23

6103022000 6103022000

6103022500 6103022500

6103027600 6103027600

6103030000 6103030000

6990003549 6990003549

6215051000 6215051000

6215051200 6215051200

7G05080800 7G05080800

7G05101000 7G05101000

7G05121200 7G05121200

91004002

91004001

91004003

98840147

92056702

92056703

92056810

92056705

92056704

91004002

91004001

91004003

98840147

92056702

92056703

92056810

92056705

92056704

Valve Assembly, 2" (50mm)

- For 2" Assembly Only

Valve Assembly, 2½" (65mm)

- For 2½" Assembly Only

Valve Assembly, 76mm

- For 76mm Assembly Only

Valve Assembly, 3" (80mm)

- For 3" Assembly Only

Butterfly Valve, 2"

- For 2" Assembly Only

Butterfly Valve, 2½"

- For 2½" Assembly Only

Butterfly Valve, 3"

- For 3" Assembly Only

Rigid Coupling, 2"

- For 2" Assembly Only

Rigid Coupling, 2½"

- For 2½" Assembly Only

Rigid Coupling, 3"

- For 3" Assembly Only

Outlet Spool, 2"

- For 2" Assembly Only

Outlet Spool, 2½"

- For 2½" Assembly Only

Outlet Spool, 3"

- For 3" Assembly Only

5

6

7

8

6999991212 6999991212

6999992360 6999992360

Pressure Switch,

EPS10-2 (UL/FM)

Pressure Switch,

EPSA10-2 (ULC)

6871020000 6871020000 Solenoid Valve (175 psi)

6871020020 6871020020 Solenoid Valve (300 psi)

6304000100 6304000100

78653000 78653000

Model A-2 Pressure

Maintenance Device

Manual Emergency Station

Assembly

9

10

11

78653004

78653100

99080002

12 98840101

13 98840106

78653004

Valve Caution Station

Assembly

78653100 Ball Drip Valve, ½"

99080002 Adhesive Pad

14

15

16

17

98840117

98840188

98840181

98840145

98840101 Angle Valve, ¼"

98840106 Angle Valve, 1¼"

98840117

98840188

Ball Valve,

¼" NPTF x ¼" NPTM

Check Valve,

¼" NPTM x ¼" NPTF

98840181

98840145

Check Valve,

Horizontal Swing, ½" NPT

Check Valve,

Horizontal Swing, 1" NPT

Check Valve,

Inline Poppet, ¼"

3

Compression Connector,

/

8

" ID Tube x ¼" NPT

Compression Connector,

Elbow

3

/

8

" ID Tube x ¼" NPT

3

Connector,

/

8

" ID Tube x ½" NPT

3

Connector, Elbow,

/

8

" ID Tube x ¼" NPT

3

Connector, Elbow,

/

8

" ID Tube x ½" NPT

QTY.

1

1

2

1

1

1

1

1

1

1

1

2

1

1

1

1

1

1

1

1

1

1

1

Item

No.

24

25

26

Part No.

Galvanized Black Pipe

96686722

94616918

98050004

Description

96686722

3

Copper Tubing,

/

8

" OD x 2 ft.

94616918

Type D Double Interlock

Nameplate

98050004 Drain Cup, PVC

27 95306270

28 98174404

29 98174402

30 98174403

31 98174414

32 96920912

33 98840172

34 98840171

35 98543226

95306270

98164402

98164400

98164404

98164407

Drain Hose Clip

Elbow, ¼"

Elbow, ¾"

Elbow, 1"

Elbow, 1¼"

96920912 Flex Line, ½"

98840172 Globe Valve, ¼"

98840171 Globe Valve, ½"

98523213 Nipple ¼" x 1½"

36 98543243

37 98543224

38 98543223

39 98543209

40 98543210

41 98543230

42 98543228

43 98543212

44 98543232

45 98543231

46 98543263

47 98543213

48 98543239

49 98543250

50 98543285

51 98750003

52 96686756

53 98048025

54 98048022

55

56

57

58

59

60

72

73

74

98048015

89141112

98614403

98604406

98614401

98727607

61 98174408

62 98174400

63 98761651

64 98761649

65 96606607

66 96606601

67 96606612

68 96606603

69 98815200

70 98815204

71 98840160

98248000

98248001

95306255

98526522

98523211

98523210

98523209

98523208

98523230

98523234

98523221

98523242

Nipple ¼" x 4"

Nipple ¼" x 4½"

Nipple ½" x 1½"

Nipple ½" x 2"

Nipple ½" x 2½"

Nipple ½" x 3"

Nipple ½" x 4½"

Nipple ½" x Close

Nipple ¾" x 2"

98523240 Nipple ¾" x 3"

98523261 Nipple 1" x 3"

98523222 Nipple 1" x Close

98523256 Nipple 1¼" x 3"

98523264 Nipple 1¼" x 4"

98523274 Nipple 1¼" x Close

98750013 Pipe Cross, ½"

96686756 PVC Tubing,

3

/

8

" ID x 6 ft.

98048011 Reducer Bushing, ¾" x ¼"

98048012 Reducer Bushing, ¾" x ½"

98048015

Reducer Bushing,

2" Spigot x 1" NPTF, PVC

89141112 Retaining Tie

98604403 Square Head Plug, ¼"

98604402 Square Head Plug, ½"

98604401 Square Head Plug, ¾"

98727607 Strainer, ¼"

98164410 Street Elbow, ¼"

98164409 Street Elbow, ½"

98761603 Tee, ½"

98761604 Tee, ½" x ¼" x ½"

98761605 Tee, ½" x ½" x ¼"

98766521 Tee, ¾"

98761614 Tee, ¾" x ½" x ½"

98761621 Tee, 1¼" x 1¼" x 1"

98805200 Union, ½"

98845204 Union, ½", O-ring Seal

98840160 Valve, 3-way, ¼"

98248000

Air Pressure Gauge

(0-80 psi)

98248001

Water Pressure Gauge

(0-300 psi)

95306255 Hose Clip

QTY.

1

1

1

1

1

1

1

3

1

1

1

2

1

4

1

1

1

9

4

1

1

1

3

1

1

1

1

1

1

1

1

1

2

1

2

1

1

1

1

2

2

1

2

2

1

9

3

1

2

2

3

5.

Fig. 3

Large DDX Type D Trim (Refer to Fig. 3)

Item

No.

Part No.

Galvanized Black Pipe

Description

1

2

6103060024 6103060024

6103040026 6103040026

6103060028 6103060028

6103080001 6103080001

6215051600 6215051600

6215052400 6215052400

6215053200 6215053200

7G05161600 7G05161600

Valve Assembly, 4" (100mm)

- For 4" Assembly Only

Valve Assembly, 6" (150mm)

- For 6" Assembly Only

Valve Assembly, 165mm

- For 165mm Assembly Only

Valve Assembly, 8" (200mm)

- For 8" Assembly Only

Butterfly Valve, 4"

- For 4" Assembly Only

Butterfly Valve, 6"

- For 6" Assembly Only

Butterfly Valve, 8"

- For 8" Assembly Only

Rigid Coupling, 4"

- For 4" Assembly Only

3

4

7G05242400 7G05242400

7G05323200 7G05323200

91004004

91004006

91004008

91004004

91004006

91004008

Rigid Coupling, 6"

- For 6" Assembly Only

Rigid Coupling, 8"

- For 8" Assembly Only

Outlet Spool, 4"

- For 4" Assembly Only

Outlet Spool, 6"

- For 6" Assembly Only

Outlet Spool, 8"

- For 8" Assembly Only

5

6

7

8

6999991212 6999991212

6999992360 6999992360

Pressure Switch,

EPS10-2 (UL/FM)

Pressure Switch,

EPSA10-2 (ULC)

6871020000 6871020000 Solenoid Valve (175 psi)

6871020020 6871020020 Solenoid Valve (300 psi)

6304000100 6304000100

78653000 78653000

Model A-2 Pressure

Maintenance Device

Manual Emergency Station

Assembly

9

10

11

12

13

14

15

16

17

18

19

20

21

22

78653004

78653100

99080002

98840100

98840117

98840188

98840181

98840145

98840147

92056702

92056703

92056810

92056705

92056704

QTY.

1

1

2

1

1

1

1

1

78653004

Valve Caution Station

Assembly

78653100 Ball Drip Valve, ½"

99080002 Adhesive Pad

98840100 Angle Valve, 2"

98840117

Ball Valve, ¼" NPTF x ¼"

NPTM

1

1

98840188

98840181

Check Valve,

¼" NPTM x ¼" NPTF

Check Valve,

Horizontal Swing, ½" NPT

1

2

98840145

Check Valve,

Horizontal Swing, 1" NPT

1

98840147 Check Valve, Inline Poppet, ¼" 1

92056702

92056703

92056810

92056705

92056704

3

Compression Connector,

/

8

" ID Tube x ¼" NPT

Compression Connector,

Elbow

3

/

8

" ID Tube x ¼" NPT

3

Connector,

/

8

" ID Tube x ½" NPT

3

Connector, Elbow,

/

8

" ID Tube x ¼" NPT

Connector,

Elbow, 3

/

8

" ID Tube x ½" NPT

1

1

1

1

1

1

1

1

Item

No.

23 96686722

24

Part No.

Galvanized

94616918

Black Pipe

Description

96686722 Copper Tubing,

94616918

3

/

8

" OD x 2 ft.

Type D Double Interlock

Nameplate

25 98050004

26 95306270

27 98174404

98050004 Drain Cup, PVC

95306270 Drain Hose Clip

98164402 Elbow, ¼"

28 98174402

29 98174403

30 98174405

31 96920912

32 98840172

33 98840171

34 98543226

35 98543225

36 98543220

98164400 Elbow, ¾"

98164404 Elbow, 1"

98164405 Elbow, 2"

96920912 Flex Line, ½"

98840172 Globe Valve, ¼"

98840171 Globe Valve, ½"

98523213 Nipple ¼" x 1½"

98573220 Nipple ¼" x 2½"

98523219 Nipple ¼" x 3"

37 98543217

38 98543223

39 98543209

40 98543210

41 98543230

42 98543216

43 98543237

44 98543234

45 98543279

46 98543222

47 98543266

48 98543213

49 98543262

50 98543238

51 98750003

52 96686756

53 98048025

54 98048022

98523217 Nipple ¼" x 6"

98523210 Nipple ½" x 1½"

98523209 Nipple ½" x 2"

98523208 Nipple ½" x 2½"

98523230 Nipple ½" x 3"

98523216 Nipple ½" x 3½"

98523250 Nipple ½" x 8"

98523247 Nipple ¾" x 3½"

98523241 Nipple ¾" x Close

98523224 Nipple 1" x 3½"

98523228 Nipple 1" x 6"

98523222 Nipple 1" x Close

98523262 Nipple 2" x 3½"

98523254 Nipple 2" x Close

98750013 Pipe Cross, ½"

96686756 PVC Tubing,

3

/

8

" ID x 6 ft.

98048011 Reducer Bushing, ¾" x ¼"

98048012 Reducer Bushing, ¾" x ½"

55

56 89141112

57 98614403

58 98604406

59 98614401

60 98727607

61 98174408

62 98761651

63 98761649

64 96606607

65 96606601

66 96606612

67 96606627

68 98815200

69 98815204

70 98840160

71

72

73

98048015

98248000

98248001

95306255

98048015

Reducer Bushing,

2" Spigot x 1" NPTF, PVC

89141112 Retaining Tie

98604403 Square Head Plug, ¼"

98604402 Square Head Plug, ½"

98604401 Square Head Plug, ¾"

98727607 Strainer, ¼"

98164410 Street Elbow, ¼"

98761603 Tee, ½"

98761604 Tee, ½" x ¼" x ½"

98761605 Tee, ½" x ½" x ¼"

98766521 Tee, ¾"

98761614 Tee, ¾" x ½" x ½"

98761618 Tee, 2" x 2" x 1"

98805200 Union, ½"

98845204 Union, ½", O-ring Seal

98840160 Valve, 3-way, ¼"

98248000

98248001

Air Pressure Gauge

(0-80 psi)

Water Pressure Gauge

(0-300 psi)

95306255 Hose Clamp

1

2

1

1

1

3

1

1

2

2

9

1

1

4

2

1

2

QTY.

1

1

1

2

1

1

1

2

1

1

1

1

1

1

3

2

13

3

1

1

1

1

1

1

1

1

2

1

1

1

1

1

2

3

7.

System Operation

When set correctly for service, the Model DDX Deluge Valve is hydraulically established to withhold the supply water from the sprinkler system piping. The Reliable Model DDX Deluge

Valve is shown in both closed and open positions in Fig. 1. In the closed position, the supply pressure acts on the underside of the clapper and also on the push rod through the push rod chamber’s inlet restriction. The resultant force due to the supply pressure acting on the push rod is multiplied by the mechanical advantage of the lever and is more than sufficient to hold the clapper closed against normal supply pressure surges.

Whenever a fire and a low system air pressure condition are detected, the energized solenoid valve vents the push rod chamber to atmosphere through the chamber’s outlet. Since the pressure can not be replenished through the inlet restriction as rapidly as it is vented, the pushrod chamber pressure falls instantaneously. When the pushrod chamber pressure approaches approximately on-third of the supply pressure, the upward force of the supply pressure acting beneath the clapper overcomes the lever applied force, thereby opening the clapper.

Once the clapper has opened, the lever acts as a latch, preventing the clapper from returning to the closed position. Water from the supply flows through the Deluge Valve into the sprinkler system piping. Water also flows through the Deluge Valve alarm outlet to the alarm devices.

After system shutdown, resetting the Model DDX Deluge

Valve is quite simple. Doing so only requires pushing in and turning the reset knob at the rear of the valve (see Fig 1). The external reset feature of the Model DDX Deluge Valve provides a means for simple, economical system testing, which is one essential facet of a good maintenance program. The external reset feature does not, however, eliminate another important facet of good maintenance, namely, periodic cleaning and inspection of the internal valve parts.

In the event that water builds up inside the valve due to condensate from the air supply system or water left inside from valve system testing, a drain is available for venting. After closing the main supply valve, a small valve over the drain cup can be opened slightly until the water inside the valve body and the main pipe column has drained. See the section titled “Draining

Excess/Condensate Water From System” in this bulletin for the detailed procedure.

The Model B Manual Emergency Station (see Fig. 4) is also included in the Reliable Type D Double Interlock Preaction System trim sets. It consists of an aluminum nameplate mechanically attached to a ball valve. The valve handle in its OFF position is guarded against accidental turning to the ON position (and system discharge) by a nylon cable tie provided with each trim kit. The cable tie is inserted, as shown in Fig. 4, after the system has been restored for operation. The nylon cable tie is designed to allow, in case of an emergency, forceful turning of the valve handle to the ON position. As an alternative to the Model

B Hydraulic Manual Emergency Station, the Model A Hydraulic

Manual Emergency Pull Box (see Reliable Bulletin 506) is also available and can be provided as an option.

Fig. 4

8.

Whenever ambient temperature conditions are high, the water temperature in the Model DDX Deluge Valve’s pushrod chamber could possibly increase, thereby increasing the pressure in the chamber to values exceeding the rated pressure of the system. In an indoor installation where standard room temperatures are exceeded, a pressure relief kit may be needed. Pressure relief kit, P/N 6503050001, can be installed into the pushrod chamber’s releasing line to limit the pressure to 250 psi (17,2 bar).

Reliable Model DDX Deluge Valve with associated Type D

Double Interlock Preaction Trims sizes 2” (50 mm), 2½” (65 mm), 76 mm, 3” (80 mm), 4” (100 mm), 165 mm, 6” (150 mm) and 8” (200 mm) are rated for use at a minimum water supply pressure of 20 psi (1,4 bar) and a maximum water supply pressure of 250 psi (17,2 bar) for 2” (50mm), 2½” (65mm), 3”

(80mm), 76mm and 8” (200mm) valve sizes and 300 psi (20,7 bar) for 4” (100mm), 6” (150mm) and 165mm valve sizes. Water supplied to the inlet of the valve and to the push rod chamber must be maintained between 40˚F (4˚C) and 140˚F(60˚C).

hour test period. The valve and applicable trim kit have been

tested, approved and listed under these conditions and as such, hydrostatic testing in accordance with NFPA 13 is acceptable. In addition, the clapper can remain in the closed position and the trim kit need not be isolated, as each has been designed to withstand hydrostatic testing as required by NFPA 13.

Hydrostatically testing the valve and trim to pressures higher than their rating is limited to the hydrostatic test as referenced by NFPA 13. It does not address the occurrence(s) of a “water hammer” effect, which can indeed damage the valve. A “water hammer” in the water supply piping of the valve can create pressures in excess of the rated pressure and should be avoided by all necessary means. This condition may be created from improper fi re pump settings, underground construction work, or an improper venting of trapped air in the water supply piping.

Pressurizing Line Connection

The water supply for the push-rod chamber must be provided by connection of its inlet pressurizing line to the water supply piping. Pressurizing lines for multiple Model DDX Deluge Valve push-rod chambers must never be manifolded together, having only a single tap on the water supply piping. Each Model DDX

Deluge Valve must have its own push-rod chamber pressurizing line connection.

This connection must be made on the supply side of the water supply control valve (see Fig. 2 or Fig. 3). This can be accomplished by:

•

Using a tapped connection directly below or next to the main water supply control valve using a welded outlet or the appropriate mechanical fittings. A grooved-end outlet coupling is one way to achieve this; or

•

Using a water supply control valve that has an available threaded (NPT) supply-side tap design to allow for a direct water supply connection to the Model DDX Deluge

Valve’s push-rod chamber.

Caution: Reliable’s DDX valve is designed with an inlet restriction built into the pushrod chamber. It is important not to introduce additional restrictions into the direct water supply connection or the discharge from the pushrod chamber by installing additional valves or improperly installing the copper lines used in the trim of the valve.

System Design Considerations

The automatic sprinklers, air compressor, releasing devices, electric releasing control equipment, fire detection devices, manual pull stations, and signaling devices which are utilized with the Type D Double Interlock Preaction System must be UL or ULC Listed or FM Approved, as applicable.

Factory Mutual requires that detection devices in refrigerated areas be of the fixed temperature type. In addition, they must have a temperature rating lower than that of the sprinklers and preferably as low as possible for the given ambient conditions.

The Deluge Valve, and all interconnecting piping must be located in a readily visible and accessible location and in an area that can be maintained above 40ºF (4ºC). Note: Heat Tracing is not permitted.

Pendent sprinklers, other than dry pendents, used on preaction systems shall be installed on return bends per NFPA 13.

The solenoid valve is operated and supervised by the electrical releasing/control panel. Details on the electrical portion of this system can be found in Reliable Bulletin 718, “Solenoid

Valves”.

Hydrostatic Testing of DDX Valves and DDX

Systems

As required by NFPA 13, fire sprinkler systems with working pressures up to and including 150 psi are to be hydrostatically tested at a water pressure of 200 psi and maintain that pressure without loss for two hours. Fire sprinkler systems with working pressures above 150 psi are required to be hydrostatically tested at 50 psi above the system working pressure and maintain that pressure without loss for two hours. In addition to the hydrostatic tests described above, dry pipe and double interlock preaction systems require an additional low pressure air test.

In some cases, hydrostatic testing (in accordance with the

NFPA 13 requirements noted above) will result in pressures that exceed the working pressure of the valve and trim kit for the two-

9.

System Air Pressure Requirements

In accordance with NFPA 13, Double Interlock Preaction Systems require a minimum of 7 psi (0,5 bar) pneumatic pressure to supervise the sprinkler system. The Model A-2 Pressure

Maintenance Device is used to maintain the system pneumatic pressure between 7 and 10 psi (0,5 and 0,7 bar) where a dry nitrogen gas supply or a clean, dependable and continuous (24 hours a day, 7 days a week) compressed air source is available.

To adjust the system pneumatic pressure between 7 and

10 psi (0,5 and 0,7 bar) refer to Reliable Bulletin 254. The low air pressure alarm switch (item #5, Fig. 2 or item #5, Fig. 3) is factory set to operate between 5 and 6 psi (0,3 and 0,4 bar) with decreasing pressure. If necessary, adjustments can be made by following the manufacturer’s adjustment procedure as described in the installation and maintenance instructions enclosed with the switch.

Note: The dew point of the air must be maintained below the lowest ambient temperature to which the double interlock preaction system piping will be exposed. Introduction of moisture into the system piping that is exposed to freezing temperatures can create ice blockage, which could prevent proper operation

of the sprinkler system. As a minimum, the supply of air should be taken from the refrigerated area at the lowest temperature.

The air supply system must be carefully designed to prevent plugging by frost deposits. Special requirements such as those in FME&R’s “installation Guidelines for Refrigerated Storage” may need to be incorporated.

Each Type D Double Interlock Preaction system is provided with a Model A-2 Pressure Maintenance Device for individual monitoring of pneumatic pressure and proper operation of the system. The Model A-2 Pressure Maintenance Device requires a tank mounted air compressor.

System Electrical Requirements

All releasing and detection devices in Reliable’s Model DDX

Type D Double Interlock Preaction System are operated and supervised by the PFC-4410-RC Releasing Control Panel in accordance to the wiring diagram shown in Fig. 5. the releasing control panel should be set to use Program #11 ( see Potter Instruction Manual #5403550).

The power supply, the standby emergency power supply, battery charger, and the rectifier circuitry are all contained within the Potter PFC-4410-RC Releasing Control Panel. Batteries that provide ninety hours of standby power are required for Factory

Mutual Approved systems.

The Model BNG-1 Manual Emergency Station can be connected as a simple detector for fire annunciation, or the Model

BNG-1F can be connected to both zones for total system emergency manual operation.

The solenoid valve is operated and supervised by the Potter

PFC-4410-RC Releasing Control Panel. Potter PFC-4410-RC

Releasing Control Panel requires 120 VAC.

Note:

In order for the solenoid valve to maintain Reliable’s warranty it must remain sealed as it came from the factory. If there are concerns about the valve’s internal components, immediate replacement is recommended.

Standard Solenoid Valve Specifi cations:

Skinner Model 73218BN4UNLVN0C111C2

Rated working pressure: 175 psi (12,1 bar)

Voltage: 24 VDC

Power: 10 Watts

Current: 0.41 Amps Holding

Enclosure Coil: NEMA 4X

Pipe Size: ½” NPT Female

Cv Factor: 4.0

Alternate Solenoid Valve Specifi cations:

Skinner Model 73212BN4TNLVN0C322C2

Rated working pressure: 300 psi (20,7 bar)

Voltage: 24 VDC

Power: 22 Watts

Current: 0.83 Amps Holding

Enclosure Coil: NEMA 4X

Pipe Size: ½” NPT Female

Cv Factor: 2.8

Type D Double Interlock Preaction Systems

Engineering Specifi cation

2” (50 mm), 2½” (65 mm), 76 mm, 3” (80 mm), 4” (100 mm),

165 mm, 6” (150 mm) and 8” (200 mm)

Model DDX Deluge Valve

10.

Preaction System shall be a Double Interlock Preaction System utilizing a [2” (50 mm)][2½” (65 mm)][76 mm] [3” (80 mm)]

[4” (100 mm)][165 mm][6” (150 mm][8” (200 mm)] [cULus

Listed] [Factory Mutual Approved] Reliable Model DDX Deluge

Valve. Deluge valve shall be a [2” (50 mm)][2½” (65 mm)][76 mm] [3” (80 mm)][4” (100 mm)][165 mm][6” (150 mm][8” (200 mm)] [cULus Listed] [Factory Mutual Approved] hydraulically operated, differential latching-clapper type valve. Deluge Valve construction shall be of lightweight, ductile iron construction with either a “screw in” stainless steel seat and clapper assembly or drop in bronze seat and clapper assembly. Stainless steel or

Bronze seat shall have O-ring seals to resist leakage and corrosion. Clapper facing shall be pressure actuated, providing a limited compression seat for the sealing force between the clapper rubber facing and the valve seat. Deluge valve shall have an external reset knob for resetting the clapper without requiring the removal of the valve face plate. Push-rod chamber design shall consist of a stainless steel piston/ push-rod and spring assembly with diaphragm seal secured to the casting through a push-rod guide constructed of a synthetic engineering plastic to resist corrosion. Casting shall have a bleeder hole located on the pushrod chamber for air/water leakage indication. Trip ratio shall be approximately a 3:1 force differential. Deluge valve shall be of the straight through design to minimize friction loss. Inlet restriction orifice shall be factory installed into the inlet port of the deluge valve push-rod cover plate and not be a separate part of the deluge valve trim. End connection style to be [2” (50 mm)]

[2½” (65 mm)][76 mm] [3” (80 mm)][4” (100 mm)][165 mm]

[6” (150 mm)][8” (200mm)] grooved, per ANSI/AWWA C606 or flanged per ASME B16.5 or ISO 7005. Deluge valve shall have a rated working pressure of 250 psi (17,2 bar) for 2” (50mm),

2½” (65mm), 3” (80mm), 76mm and 8” (200mm) valve sizes and 300 psi (20,7 bar) for 4” (100mm), 6” (150mm) and 165mm valve sizes and shall be factory hydrostatic tested at 500 psi

(34,5 bar) for 2” (50mm), 2½” (65mm), 3” (80mm), 76mm and

8” (200mm) valve sizes and 600 psi (41,4 bar) for 4” (100mm),

6” (150mm) and 165mm valve sizes.

Deluge valve to be [2” (50 mm)][2½” (65 mm)][76 mm] [3” (80 mm)][4” (100 mm)][165 mm][6” (150 mm)][8” (200 mm)] Reliable Model DDX Deluge Valve (Bulletin 519).

Valve trim shall be Type D electric/pneumatic-electric release trim consisting of the following components:

•

Hydraulic trim to be either galvanized and brass components or black pipe and brass components. All trims and components to be listed/Approved with the Deluge

Valve, including associated pressure gauges, 1¼” or 2” drain connection, alarm devices, alarm test and pushrod chamber connections.

•

Electrical two-way, normally closed, pilot operated solenoid valve [cULus] [FM Approved] for its intended use. The solenoid valve shall be constructed of a brass body with stainless steel sleeve tube, springs, stop and plunger, and with ½” female NPT end connections. Solenoid valve shall have a maximum working pressure of

[175 psi (12,1 bar)] [300 psi (20,7 bar)] and a maximum ambient temperature rating of 150ºF (66ºC). Power consumption of the integrated coil shall be limited to [10 watts for the 175 psi (12,1 bar) rated] [22 watts for the

300 psi (20,7 bar) rated] and require 24 VDC from a re-

Fig. 5

leasing Control Panel listed for such service. Solenoid shall be a Skinner ½” normally closed solenoid valve

[73218BN4UNLVNOC111C2 (175 psi (12,1 bar) rated)]

[73212BN4TNLVNOC322C2 (300 psi (20,7 bar) rated)].

•

Low air pressure switch to indicate loss of air pressure in system piping. Pressure switch shall be [cULus Listed]

[ FM Approved] and of the bellows activated type enclosed in a weatherproof NEMA 4/4X rated enclosure incorporating tamper proof screws. There shall be two sets of SPDT (form C) contacts rated 10.0 A @ 125/250

VAC and 2.5 A @ 6/12/24 VDC. The pressure switch shall have a maximum service pressure rating of 250 psi

(17,2bar) and shall be factory adjusted to operate at a pressure of 4 to 8 psi (0,27 to 0,55 bar) with adjustment up to 20 psi (1,3 bar). Switch shall be provided with a

½” NPT male pressure connection. Low air supervisory switch shall be System Sensor EPS10-2.

•

Pressure maintenance device for maintaining a constant pneumatic system pressure regardless of pressure fluctuations in the compressed air (or nitrogen) source. The pressure maintenance device shall consist of galvanized trim and brass parts, including a strainer, a field adjustable air pressure regulator and associated pressure gauge. The pressure regulator shall have an adjustable outlet pressure range of 5 to 100 psi (0,34 to

6,8 bar). The pressure maintenance device shall have a working pressure of 175 psi (12,1 bar). Recommended supervisory pressure shall be 7 to 10 psi (0,5 to 0,7 bar).

Pressure maintenance device shall be Reliable Model

A-2.

Double Interlock Preaction System shall be Reliable Double

Interlock Type D Preaction System, Bulletin 750.

Pneumatic Supervisory Pressure Supply Options

Note: See Reliable Bulletin 254 for complete information on air and nitrogen regulating equipment.

Owner’s Air supply

Supervisory air supply shall be provided by an owner supplied air system in conjunction with a [cULus Listed] automatic pressure maintenance device, capable of maintaining a constant system pressure regardless of pressure fluctuations in the compressed air source.

Compressed Air Supply

Supervisory air supply shall be provided by an automatic tankmounted air compressor sized (appropriate hp (kW)) for the capacity (volume) of the double interlock preaction system piping, and be capable of restoring normal air pressure in the system within the time limits specified by NFPA 13. Tank mounted compressor shall be a motor mounted, oil-less, piston compressor, including gauge, pressure switch, check valve, drain valve and safety relief valve. Single-phase motor shall have internal thermal protection.

Nitrogen

Nitrogen cylinders provided by an approved source shall provide the nitrogen supply. The nitrogen cylinder pressure shall be regulated and supervised through the use of nitrogen regulating device and low-pressure trim kit. This device shall consist of a brass, single stage pressure regulator, equipped with high

12.

pressure inlet and low pressure outlet gauges, and ¼” copper connection tubing with galvanized ¾” x ¼” reducer bushing.

Optional: Low-pressure trim kit shall be included to monitor the regulated nitrogen supply pressure to provide a low-pressure supervisory alarm. This kit shall include a low-pressure switch with associated galvanized connection trim. Assembly shall be a Reliable Nitrogen Regulating Device. This device is to be used in conjunction with the Reliable Model A-2 Pressure Maintenance Device.

Optional System Accessories

System Control Valve

Preaction system control valve shall be a slow close, [cULus

Listed] indicating butterfly type valve with a pre-wired supervisory tamper switch assembly. The valve shall be rated for a working pressure of [300 psi (17,2 bar)]. System control valve shall be for a [2” (50 mm)] Gruvlok AN7722-3A Butterfly Valve or

[2½” (65 mm)][3” (80 mm)][4” (100 mm)][6” (150 mm][8” (200 mm] - Nibco GD-4765-8N Butterfly Valve.

Detection System

To initiate actuation of the preaction system’s deluge valve, a supplemental electric detection system shall be provided [Insert applicable product specification].

Releasing/Control Panel

A releasing/control panel shall be used to operate the preaction system. The releasing/control panel shall be a conventional, microprocessor-controlled panel containing two initiating device circuits, and waterflow and supervisory inputs. Output circuits shall include alarm, waterflow, supervisory, and releasing circuits. Mode of operation shall be set for cross zoned operation, requiring both a detection device input and a low air pressure switch input (sprinkler operation) to energize the solenoid valve, causing the deluge valve to operate. Releasing/control panel shall be equipped with a local tone alarm to annunciate loss of AC power, system trouble, circuit trouble, and low auxiliary

DC power supply. Panel shall be [cULus Listed] [FM Approved] and be capable of providing power for compatible detectors and auxiliary devices used. Audible alarms shall be able to be silenced at releasing panel. Auxiliary DC power supply shall consist of (2) 12-volt lead acid batteries of the same amperehour rating, providing [60 hours – cULus Listed] [90 hours – FM

Approved]. Dry contacts shall be provided for remote annunciation of alarm, trouble, and supervisory panel signals. Main power supply to be a dedicated a 120 VAC / 60 Hz circuit.

Waterfl ow Alarm Pressure Switch

Alarm pressure switch shall be provided to indicate water flow and provide a water flow alarm. Pressure switch shall be [cULus Listed] and of the bellows activated type enclosed in a weatherproof,

NEMA 4/4X rated enclosure incorporating tamper-resistant screws.

There shall be two sets of SPDT (Form C) contacts rated at 10.0

A @ 125/250 VAC and 2.5 A @ 6/12/24 VDC. The pressure switch shall have a maximum service pressure rating of 250 psi (17,2 bar) and shall be factory adjusted to operate at a pressure of 4 to 8 psi

(0,27 to 0,55 bar) with adjustment up to 20 psi (1,3 bar). Switch shall be provided with a 1/2” NPT male pressure connection. Waterflow alarm pressure switch shall be System Sensor EPS10-2.

Technical Data

Reliable Double Interlock Type D Preaction Systems, with associated trim, size 2” (50 mm), 2½” (65 mm), 76 mm, 3” (80 mm), 4”

(100 mm), 165 mm, 6” (150 mm), 8” (200 mm) are rated for use at minimum water supply pressure of 20 psi (1,4 bar) and maximum supply pressure of 250 psi (17,2 bar) for 2” (50mm), 21/2” (65mm),

3” (80mm), 76mm and 8” (200mm) valve sizes and 300 psi (20,7 bar) for 4” (100mm), 6” (150mm) and 165mm valve sizes. Water supplied to the inlet of the valve and to the pushrod chamber must be maintained between 40°F (4°C) and 140°F (60°C).

The following list of technical bulletins pertains to valves and devices that may be used in this preaction system:

Deluge Valve

Hydraulic Emergency Station

(Model A)

Reliable 518/519

Reliable 506

Solenoid Valve

Mechanical Sprinkler Alarm

Reliable 718

Reliable 612/613

Pressure Maintenance Device Reliable 254

Nitrogen Regulating Device Reliable 254

Air Compressor Gast F-30

Releasing/Control Panel Potter #5403550

Low Air Pressure Supervisory Switch System Sensor WFDS51701

Waterflow Pressure Alarm Switch System Sensor WFDS51701

Model DDX Deluge Valve Description

1. Rated working pressure:

Valve & System - 250 psi (17.2 bar) for 2” (50mm), 2

1

/

2

” (65mm),

3” (80mm), 76mm and 8” (200mm) valve sizes and 300 psi

(20,7 bar) for 4” (100mm), 6” (150mm) and 165mm valve sizes.

2. Factory tested to a hydrostatic pressure of 500 psi (34,5 bar) for

2” (50mm), 2

1

/

2

” (65mm), 3” (80mm), 76mm and 8” (200mm) valve sizes and 600 psi (41,7 bar) for 4” (100mm), 6” (150mm) and 165mm valve sizes. (Valve only)

3. End and trim connections:

• ANSI/AWWA C606 grooved inlet and outlet

Nominal

Pipe Size

2”

(50 mm)

2½”

(65 mm)

76 mm

3”

(80 mm)

4”

(100 mm)

165 mm

6”

(150 mm)

8”

(200 mm)

Outlet

Diameter

2.375”

(60 mm)

2.875”

(73 mm)

3.000”

(76 mm)

3.500”

(89 mm)

4.500”

(114 mm)

6.500”

(165 mm)

6.625”

(168 mm)

8.625”

(219 mm)

Groove

Diameter

2.250”

(57 mm)

2.720”

(69 mm)

2.845”

(72 mm)

3.344”

(85 mm)

4.334”

(110 mm)

6.330”

(161 mm)

6.455”

(164 mm)

8.441”

(214 mm)

Groove

Width

11/32”

(9.0 mm)

11/32”

(9.0 mm)

11/32”

(9.0 mm)

11/32”

(9.0 mm)

3/8”

(9.5 mm)

3/8”

(9.5 mm)

3/8”

(9.5 mm)

7/16”

(11 mm)

• Threaded openings Per ANSI B 2.1

Outlet

Face to

Groove

5/8”

(16 mm)

5/8”

(16 mm)

5/8”

(16 mm)

5/8”

(16 mm)

5/8”

(16 mm)

5/8”

(16 mm)

5/8”

(16 mm)

3/4”

(19 mm)

• Flange Dimensions

Flange

Type:

AMSE B16.5

Class 150

Nominal

Pipe

Size

4”

(100mm)

Bolt

Circle

Diameter

7½”

(191mm)

Bolt

Hole

Diameter

¾”

(19mm)

Flange

Outside

Diameter

9”

(229mm)

ISO 7005-2

PN16

4”

(100mm)

7

3

/

32

”

(180mm)

¾”

(19mm)

9”

(229mm)

Flange

Thickness

15

/

16

”

(24mm)

15

/

16

”

(24mm)

Number of

Bolts

8

8

AMSE B16.5

Class 150

6”

(150mm)

ISO 7005-2

PN16

6”

(150mm)

AMSE B16.5

Class 150

8”

(200mm)

9½”

(241mm)

9

7

/

16

”

(240mm)

11¾”

(298mm)

ISO 7005-2

PN16

8”

(200mm)

11

5

/

8

”

(295mm)

4. Valve Exterior Color:

Valve Size

2” (50 mm)

2½” (65 mm)

76 mm

3” (80 mm)

4” (100 mm)

165 mm

6” (150 mm)

8” (200 mm)

5. Face to face dimensions:

7

/

8

”

(22mm)

29

/

32

”

(23mm)

7

/

8

”

(22mm)

29

/

32

”

(23mm)

11”

(279mm)

11”

(279mm)

13½”

(343mm)

15

/

16

”

(24mm)

15

/

16

”

(24mm)

1”

(25.4mm)

13½”

(343mm)

1”

(25.4mm)

Valve Size:

End

Connection:

2" (50mm), 2½" (65mm),

76mm & 3" (80mm)

Groove/ Groove

4" (100mm)

6" (150mm) & 165mm

8" (200mm)

4" (100mm)

6" (150mm) & 165mm

8" (200mm)

Groove/ Groove

Flange/ Groove

Flange/ Flange

Groove/ Groove

Flange/ Groove

Flange/ Flange

Groove/ Groove

Flange/ Flange

6. Valve shipping weight:

Valve Size:

2" (50mm), 2½" (65mm),

76mm & 3" (80mm)

End Connection:

Groove/ Groove

Groove/ Groove

Flange/ Groove

Flange/ Flange

Groove/ Groove

Flange/ Groove

Flange/ Flange

Groove/ Groove

Flange/ Flange

7. Trim shipping weight:

Color

Black or Red

Black or Red

Red

Black or Red

Black or Red

Red

Black or Red

Black or Red

8

8

8

12

End to End:

12½" (318mm)

14" (356mm)

16" (406mm)

16" (406mm)

16" (406mm)

19" (483mm)

19" (483mm)

19

3

/

8

” (492mm)

21¼" (540mm)

Weight:

34 lbs (15 kg)

64 lbs (29 kg

79 lbs (36 kg)

92 lbs (42 kg)

95 lbs (43 kg)

122 lbs (56 kg)

138 lbs (69 kg)

148 lbs (67 kg)

197 lbs (90 kg)

Trim Confi guration

2” (50 mm),

2½” (65 mm),

3” (80 mm)

& 76 mm

4” (100 mm),

6” (150 mm),

8” (200 mm)

& 165 mm

Type D Double

Interlock

47 lbs (21 kg) 52 lbs (24 kg)

13.

8. Friction loss (Expressed in equivalent length of Schedule 40 pipe, based on Hazen & Williams formula:

Valve Size:

2" (50mm)

2½" (65mm)

76mm

3" (80mm)

4" (100mm)

165mm

Equivalent Length:

C = 120 C = 100

4.4 ft (1,3 m)

6.0 ft (1,8 m)

7.7 ft (2,3 m)

12.6 ft (3,8 m)

14 ft (4,3 m)

29.4 ft (9,0 m)

3.1 ft (1,0 m)

4.3 ft (1,3 m)

5.5 ft (1,7 m)

9.0 ft (2,7 m)

10 ft (3,0 m)

20.9 ft (6,4 m)

Cv

6" (150mm) 29.4 ft (9,0 m) 20.9 ft (6,4 m) 886

8" (200mm) 53.5 ft (16,3 m) 38.1 ft (11,6 m) 1516

101

236

241

254

469

886

9. Installation position: Vertical

Trim Descriptions

The Type D Double Interlock Preaction Trims for the Reliable

Model DDX Deluge Valve are arranged for rapid, easy, and compact attachment, and serve as connection points to Reliable Model C Mechanical Alarms and other devices.

The Double Interlock Type D Preaction System trim configurations can be ordered as individual parts, in time-saving segmentally assembled kit forms, or fully assembled to the Model

DDX Deluge Valve (with or without a control valve).

Maintenance

Reliable Double Interlock Type D Preaction Systems and associated equipment shall periodically be given a thorough inspection and test. NFPA 25, Inspection, Testing and Maintenance of Water Based Fire Protection Systems, provides minimum maintenance requirements. System components shall be tested, operated, cleaned, and inspected at least annually, and parts replaced as required.

Type D Double Interlock Preaction Trim

Type D Double Interlock Preaction trim (see Figures 2 and

3) utilizes a normally closed/powered-open solenoid valve for releasing the Deluge Valve. The solenoid valve used in the assembly is available in both a 175 psi (12,1 bar) or 300 psi (20,7 bar) rating.

Note:

In order for the solenoid valve to maintain Reliable’s warranty it must remain sealed as it came from the factory. If there are concerns about the valve’s internal components, immediate replacement is recommended.

Type D Double Interlock Preaction Trim installation on Model

DDX Deluge Valves uses eight tapped openings for trim connections. Each opening and its function are indicated on Fig. 2 or Fig. 3. Using Fig. 2 or Fig. 3 as reference, the recommended trim installation is as follows:

1. Install ½” nipple (#39, Fig. 2 or #42, Fig. 3) in tapped opening marked “TEST.” Note: If interference occurs

between the supply gauge and the control valve, the 1/4” plug (#57, Fig. 2 or #57, Fig. 3) in the opening marked “SUPPLY” may be swapped with: the

1/4” nipple (#36, Fig. 2), angle valve (#12, Fig. 2) and

10

1

MODEL DDX HYDRAULIC FRICTION LOSS GRAPH

5 10

FLOW RATE (L/SEC)

50

2

IN

C

H

(5

0

M

M

)

2

-1

/2

IN

C

H

(6

5

M

M)

&

7

6

3

IN

M

M

C

H

(8

0

M

M

)

100

4

IN

C

H

(1

00

6

IN

C

H

(1

5

0

M

M

)

M

M

)

&

1

6

5

M

M

8

IN

C

H

(2

0

0

M

M

)

500

0.5

0.1

1

0.05

0.1

10

2 INC

H (50

MM)

&

7

6

M

M

2

-1

/2

IN

C

H

(6

5

3

IN

M

M)

C

H

IN

C

H

4

(8

0

M

M

)

(1

00

M

M

)

100

6

IN

C

H

(1

5

0

M

M

)

&

1

6

5

M

M

(2

0

0

M

M

)

8

IN

C

H

FLOW RATE (GPM)

1000

Fig. 6

14.

0.01

10000

gauge (#73, Fig. 2) for the 2” (50mm), 2-1/2” (65mm),

76mm and 3” (80mm) valve sizes; 1/4” nipple (#36,

Fig. 3), 1/4” elbow (#27, Fig. 3), 1/4” nipple (#37,

Fig. 3), 3-way valve (#70, Fig. 3) and the gauge (#72,

Fig. 3) for the 4” (100mm), 165mm and 6” (150mm) valve sizes; 1/4” nipple (#37, Fig. 3), 3-way valve

(#70, Fig. 3) and the gauge (#72, Fig. 3) for the 8”

(200mm) valve size, in the trim installed in the open-

ing marked “TEST”.

2. Install ½” nipple (#43, Fig. 2 or #38, Fig. 3) in tapped opening marked “ALARM” and connect balance of this trim line.

3. Install ¼” plug (#57, Fig. 2 or #57, Fig. 3) in tapped opening marked “SUPPLY.” Note: If interference oc-

curs between the supply gauge and the control valve, the 1/4” plug (#57, Fig. 2 or #57, Fig. 3) in the opening marked “SUPPLY” may be swapped with: the 1/4” nipple (#36, Fig. 2), angle valve (#12, Fig.

2) and gauge (#73, Fig. 2) for the 2” (50mm), 2-1/2”

(65mm), 76mm and 3” (80mm) valve sizes; 1/4” nipple (#36, Fig. 3), 1/4” elbow (#27, Fig. 3), 1/4” nipple

(#37, Fig. 3), 3-way valve (#70, Fig. 3) and the gauge

(#72, Fig. 3) for the 4” (100mm), 165mm and 6”

(150mm) valve sizes; 1/4” nipple (#37, Fig. 3), 3-way valve (#70, Fig. 3) and the gauge (#72, Fig. 3) for the

8” (200mm) valve size, in the trim installed in the

opening marked “TEST”.

4. Install ½” nipple (#38, Fig. 2 or #38, Fig. 3) in tapped opening marked “OUT” and connect balance of this trim line.

5. Install ¼” inline check valve (#18, Fig. 2 or #17, Fig. 3) in tapped opening marked “IN” and connect balance of this trim line. Supply line must be connected to the inlet of the control valve for each Deluge Valve as shown.

Caution: Over tightening check valve can cause a restriction in flow that may prevent the valve from

“setting up”.

6. Install 1¼” Nipple (#49, Fig. 2) or 2” nipple (#49, Fig. 3) in tapped drain opening and connect balance of this trim line.

7. Install ¾” x ¼” reducing bushing (#53, Fig. 2 or #53, Fig.

3) in the lower-most tapped opening at the rear of the

Deluge Valve and connect the balance of this trim line.

8. Install ¾” nipple (#45, Fig. 2 or #44, Fig. 3) in the uppermost tapped opening at the rear of the Deluge Valve and connect the balance of this trim line.

Note: The above steps accomplish the relieving of pressure in the pushrod chamber of the Deluge

Valve.

5. With valve G (Fig. 9) open, push in the plunger of ball drip valve E (Fig. 9), forcing the ball from its seat, and drain the alarm line.

6. With the Model B Manual Emergency Station, valve D

(Fig. 9) open, push in and rotate the Deluge Valve’s external reset knob (#14, Fig. 7 or #38, Fig. 8) clockwise, until you hear a distinct noise indicating that the clapper has reset. Note: The reset knob can be rotated only while pressure in the pushrod chamber is vented to atmospheric conditions (0 psig).

7. Inspect and replace any portion of the detection system and/or sprinkler system subjected to fire conditions.

8. Open valve A (Fig. 9) and allow water to fill the push rod chamber. Close valve D (Fig. 9).

9. Bleed all air from the actuation piping by energizing the solenoid valve. This is done by operating a detector or an electric manual emergency station. While water is flowing through the solenoid valve, cause it to close.

Note: All detection devices must be reset before the

Releasing Control Panel can be reset.

10. Close valve G (Fig. 9). Open the ¼” globe valve in the

Model A-2 Pressure Maintenance Device to restore air pressure in the sprinkler system.

11. Open valve G (Fig. 9). Verify the main drain valve, valve

B is open. Open slightly the main valve controlling water supply (Fig. 9) to the Model DDX Deluge Valve, closing drain valve B (Fig. 9) when water flows. Observe if water leaks through the ball drip valve, valve E (Fig. 9), into the drip cup, J (Fig. 9). If no leak occurs, the Deluge

Valve’s clapper is sealed. Open slowly and verify the main valve controlling water supply is fully opened and properly monitored.

12. Verify that valve A (Fig. 9) and valve G (Fig. 9) are open.

Valve A (Fig. 9) must remain open when the Deluge

Valve has been reset, to maintain water pressure in the push rod chamber.

13. Verify that the Model B Manual Emergency Station, valve

D (Fig. 9) is secured in the OFF position with the appropriate nylon tie (#56, Fig. 2 OR #56 Fig. 3), see Fig. 4.

Resetting Model DDX Double Interlock Type

D Preaction Systems

Refer to Figs. 2, 3, 7, 8 & 9

1. Close the valve controlling water supply (Fig. 9) to the

Deluge Valve and close off the ¼” globe valve controlling system air pressure in the Model A-2 Pressure Maintenance Device.

2. Close the pushrod chamber supply valve, valve A (Fig.

9).

3. Open main drain valve B (Fig. 9) and drain system.

4. Open all drain valves and vents at low points throughout the system, closing them when flow of water has stopped. Open valve D (Fig. 9).

15.

Inspection and Testing

Refer to Figs. 2, 3, 7, 8 & 9.

supply — be sure the valves controlling water supply to the Deluge Valve are opened fully and properly monitored.

2. Alarm line—be sure that valve G (Fig. 9) is opened and remains in this position.

3. Other trimming valves—check that valve A (Fig. 9) is open, as well as all of the pressure gauge’s ¼“ 3-way valves. Valves D, F, & H (Fig. 9) should be closed.

4. Ball drip valve E (Fig. 9)—Make sure valve G (Fig. 9) is open. Push in on the plunger to be sure ball check is off its seat. If no water appears, the Deluge Valve’s water seat is tight. Inspect the bleed hole (see Fig. 7 of Fig. 8) on the underside of the push rod chamber for leakage.

5. System pneumatic pressure — check that system air pressure is between 7 and 10 psi (0,5 and 0,7 bar).

Check the Model A-2 Pressure Maintenance Device for leakage and proper pressure.

device — check outlet of the releasing device (i.e., solenoid valve, or the hydraulic manual emergency station, valve D (Fig. 9)) for leakage. Also verify that tubing drain lines from releasing devices are not pinched or crushed which could prevent proper releasing of the Deluge Valve.

alarms — Make sure valve G (Fig. 9) is open.

Open valve F (Fig. 9) permitting water from the supply to flow to the electric sprinkler alarm switch and to the mechanical sprinkler alarm (water motor). After testing, close this valve securely. Push in on the plunger of ball drip valve E (Fig. 9) until all of the water has drained from the alarm line.

test

gency Station, valve D (Fig. 9), or operate by electrical actuation.

Note: An operational test will cause the Deluge Valve to open and flow water into the sprinkler system.

9. Secure the Model B Manual Emergency Station, valve D

(Fig. 9), in the OFF position with nylon tie (#56, Fig. 2 or

#56, Fig. 3), see Fig. 4, after Deluge Valve is reset.

Testing Detection System Without Operating

Deluge Valve

Refer to Figs. 2, 3 & 9.

1. Close the valve controlling water supply to Deluge Valve and open the main drain valve B (Fig. 9).

2. Verify that valve A (Fig. 9) is open, allowing water to enter the push rod chamber.

3. Operate detection system — energize the solenoid valve by operating both a detector and the low air pressure switch.

4. Operation of the detection system must result in a sudden drop of water pressure in the push rod chamber.

5. Reset detection system — reverse operations performed in step three above and then proceed according to the directions listed in the “Resetting Model DDX

Double Interlock Type D Preaction Systems” section of this bulletin for resetting the Deluge Valve.

Draining Excess/Condensate Water From

System

Refer to Fig. 9

1. Close the main valve controlling water supply to Deluge

Valve. Also close valve A and open main drain valve B.

2. Open condensate drain valve H until all water has drained. Close valve H. Note: Be sure not to keep valve

H open for an extended period of time because that will cause enough system air to bleed off of the system thereby causing an undesirable activation of a troubleannunciating device.

3. Close main drain valve B. If system contains pressurized air, allow air pressure to come back up to specification. Open valve A first, and then open the main valve controlling the water supply to the Deluge Valve.

16.

Maintenance Procedures - Model DDX Deluge

Valve

Refer to Figs. 2, 3, 7, 8 & 9.

1. Mechanical sprinkler alarm (water motor–not shown)

not operating: This is most likely caused by a clogged screen in the strainer of the water motor. Proceed as follows: Remove plug from the strainer. Remove and clean the screen. Replace the screen and the plug, and then tighten securely (Ref. Bulletin 613).

2. Leakage out of the ball drip valve E (Fig. 9).

a. Water leakage due to water column in deluge systems:

This condition can be caused by leakage past the system side of the Model DDX Deluge Valve’s seal assembly (#8, Fig. 7 or #5, Fig. 8). Be sure that this surface is free of any type of debris. To eliminate leakage due to water column in a deluge system, refer to the section in this bulletin marked “Draining Excess/Condensate Water

From System”. If the problem continues proceed to the following section.

b. Leakage, air or water from the ball drip valve, E

(Fig. 9):

If system air is leaking out the ball drip valve, the problem is either damage to the airside of the Model DDX Deluge Valve’s seal assembly

(#8, Fig. 7 or #5, Fig. 8), seat (#29, Fig. 7 or #2,

Fig. 8), the upper seat o-ring(#23, Fig. 7 or #11,

Fig. 8) or, on the 8” (200 mm) valve size only, the mounting ring o-ring (#2, Fig. 7). If supply water is leaking out the ball drip valve, the problem could be caused by damage to the Model DDX

Deluge Valve’s seal assembly (#8, Fig. 7 or #5,

Fig. 8), seat (#29, Fig. 7 or #2, Fig. 8), or lower seat O-ring (#24, Fig. 7 or #11, Fig. 8). The following section provides instructions to correct both conditions:

A) Shut down the valve controlling the water supply to the Deluge Valve and open the

1¼” main drain valve on the 2” (50mm), 2½”

(65mm), 76mm and 3” (80mm) valve sizes or the 2” main drain valve on the 4” (100mm),

165mm, 6” (150mm) and 8” (200mm) valve sizes, valve B (Fig. 9). Open the water column drain valve H (Fig. 9). Close the pushrod chamber supply valve A (Fig. 9) and open the Model B Manual Emergency Station, valve D (Fig. 9).

B) Remove the Deluge Valve’s front (handhold) cover (#7, Fig. 7 or #4, Fig. 8) and inspect the seat (#29, Fig.7 or #2, Fig. 8), clapper

(#6, Fig. 7 or #3, Fig. 8), and seal assembly (#8, Fig. 7 or #5, Fig. 8) for damage. If inspection indicates damage to the seal assembly (#8, Fig. 7 or #5, Fig. 8), replace as follows:

For Valve Sizes: 2” (50mm), 2½” (65mm),

76mm, 3” (80mm), 8” (200mm) and 4”

(100mm), 6” (150mm) & 165mm with

Screw-In Seat only, Refer to Fig. 2, Fig. 3

& Fig. 7:

Remove the bumpstop nuts (#10, Fig. 7) and remove the seal assembly (#8, Fig. 7). Install a new seal assembly (#8, Fig. 7) and thread

Fig. 7

3

4

5

6

7

8

9

10

15

16

17

18

11

12

13

14

19

20

21

22

23

24

25

26

27

Model DDX (Screw-In Seat Confi guration) Deluge Valves Parts List (Refer to Fig. 7)

Item

No.

1

2

2"

(50mm)

3"

(80mm)

Part No.

4”

(100mm)

6”

(150mm)

8"

(200mm)

91006011 91006012 91006023 91006013 91006005 91006027 91006007 91006028 Valve Body Groove/Groove

N/A N/A N/A N/A 91006045 N/A 91006067 N/A Valve Body Flange/Groove

N/A

N/A

2½"

(65mm)

N/A

N/A

76mm

N/A

N/A

N/A

N/A

91006035

N/A

165mm

N/A

N/A

Part Description

91006037 91006039 Valve Body Flange/Flange

95406414 O-ring (Mounting Ring)

QTY.

1

Material

Ductile Iron 65-45-12

28

29

30

31

32

91106123

N/A

N/A

N/A

91306013

91916013

92116063

93416003

93706003

93722000

N/A

N/A

94506003

95006414

95306267

N/A

N/A

N/A

95306267

N/A

N/A

95406410

95406411

95606133

N/A

96016003

96206003

N/A

96216003

N/A

71040416 Pushrod Cover Assembly

N/A

95606107

N/A

N/A

N/A Hex Bolt ½”-13 x 1¼”

N/A Hex Bolt ½”-13 x 1½”

N/A

N/A

91106006

N/A

91306016

91916016

N/A Hex Bolt

5

/

8

”-11 x 1¾”

95606110 Hex Bolt

5

/

8

”-11 x 2”

91306018 Mounting Ring 91306014

91916014 91916008 Clapper

92116064 92116065 92116066 92116068 Access Cover

93416014

93706004

93722000

N/A

N/A

93916006

93916066

94106066

94356006

94506004

94006412

95106006

95276006

N/A

95306267

N/A

N/A

N/A

95306267

N/A

95406007

95406024

95406407

95406409

95406420

95506006

95606114

95606127

N/A

95606130

96016014

N/A

96216086

N/A

96216044

93416016

93706006

N/A

93722000

N/A

94506016

95006410

N/A

N/A

95306269

N/A

N/A

95306267

N/A

95436126

95446226

N/A

95606130

96016016

N/A

96216068

N/A

96216047

93416008 Seal Assembly

93706008 Access Cover Gasket

N/A

N/A

93722000

Bumpstop Assembly

Pushrod Guide

Reset Shaft

Reset Housing

Reset Knob

94506008 Lever

95006410 Striker

Piston

Diaphragm

N/A Retaining Ring, 3

/

8

" Shaft, Lever Pin

N/A Retaining Ring, ½” Shaft, Lever Pin

N/A Retaining Ring, 5

/

8

” Shaft, Lever Pin

95316408 Retaining Ring, ¾” Shaft, Lever Pin

N/A Retaining Ring,

3

/

8

” Shaft, Hinge Pin

N/A Retaining Ring, ½” Shaft, Hinge Pin

95316408 Retaining Ring,

3

/

4

” Shaft, Hinge Pin

O-Ring, Reset Housing ID

O-Ring, Reset Housing & Pushrod

Guide OD

O-Ring, Pushrod Guide ID

95406413 O-Ring, Upper Seat

95406412 O-Ring, Lower Seat

Pushrod

Socket Head Screw, ¼”-20 x 5

/

8

”

3

Flat Head Socket Cap Screw

/

8

"-16 x ¾"

N/A Socket Head Screw #6-32 x ½"

95606130 Socket Head Screw #10-32 x 1"

96016008 Seat

N/A

96206008

N/A

Hinge Pin

Lever Pin

96216008

1 Buna-N

1

Ductile Iron 65-45-12

& Brass C360000

6

8

6

6

Zinc Plated Steel

1 Stainless Steel CF8 or CF8M

1 Stainless Steel CF8 or CF8M

1 Ductile Iron 65-45-12

1

1

1

1 Stainless Steel 304 & EPDM

1 Buna-N or Neoprene

1

2

Stainless Steel UNS S31600

& EPDM

3

1

1

1

Acetal

Brass UNS C36000

1

Brass UNS C36000

Aluminum 6061

1 Stainless Steel UNS S17400

Aluminum Bronze C95400

Stainless Steel CF8M

EPDM & Polyester

2 Stainless Steel 15-7 or 17-7

2 Stainless Steel 15-7 or 17-7

1

2

Buna-N

Buna-N

1

1

Buna-N

Buna-N

1 Buna-N

1 Stainless Steel UNS S30300

6 Steel

1

1

1

1

1

Steel

Stainless Steel 18-8

Stainless Steel UNS S31600

Stainless Steel CF8M

Stainless Steel UNS S30400

Stainless Steel UNS S21800

Stainless Steel UNS S17400

Stainless Steel UNS S21800

18.

Model DDX (Screw-In Seat Confi guration) Deluge Valves Parts List (Refer to Fig. 7)

(Continued)

Item

No.

33

34

35

36

37

2"

(50mm)

2½"

(65mm)

76mm

96310003

96406003

N/A

96906112

N/A

95606140

N/A

N/A

3"

(80mm)

Part No.

4”

(100mm)

96906904

N/A

96406004

96406906

N/A

96906111

N/A

95606139

N/A

165mm

6”

(150mm)

96906904

N/A

96406005

N/A

96906111

N/A

N/A

N/A

8"

(200mm)

Part Description

96310008 Clapper Spacer

N/A

Lever Spring

96406008

Piston/ Reset Spring

N/A Spring Lock Washer, #6

96906111 Spring Lock Washer, #10

N/A

N/A

Flat Head Socket Cap Screw

¼”-20 x ½”

95606135

Flat Head Socket Cap Screw

½"-13 x ¾"

QTY.

Material

2 Tefl on or Acetal

Stainless Steel UNS S30400

1

Stainless Steel UNS S31600

2 Stainless Steel UNS S31600

1

2

Stainless Steel 18-8

Stainless Steel UNS S31600

Stainless Steel 18-8

Stainless Steel UNS S31600

Stainless Steel UNS S31600

38 98604402 Plug, ½” NPT 1 Steel

39

40

41

42

94616921

91556922

91556923

699993406

Knob Caution Label (Not Shown)

Ball Chain, 1/8" (Not Shown)

(Length is in Inches)

Clamping Link, Ball Chain

(Not Shown)

O-Ring Grease, Dupont tm

Krytox

®

GPL-205

1

6

1

A/R

Polystyrene

Nickel Plated Brass

Krytox

®

Fig. 8

19.

Model DDX (Drop-In Seat Confi guration) Deluge Valves Parts List (Refer to Fig. 8)

4

5

6

1

2

3

7

8

9

10

37

38

39

34

35

36

40

41

29

30

31

32

33

26

27

28

20

21

22

17

18

19

23

24

12

13 93706001

14

15

16

25

95606107

N/A

Item

No.

11

Part No.

4"

(100mm)

165mm

6"

(150mm)

91006005 91006027 91006007 Valve Body

96016004 96016006 Seat

91916004 91916006 Clapper

92116064 92116065 92116066 Access Cover

93416004 93416006 Seal Assembly

93706004 93706006 Access Cover Gasket

94506004 94506006 Lever

Part Description

71040416 Pushrod Cover Assembly

95406006

95406407

95406007

95406016

95406024

93706002

96216086

96216046

95606131

96216066

95106006

95200038

95506006

93916006

95306267

95606128

95606129

94356006

6999993406

94616921

91556922

91556923

N/A

91106006

96906111

95606127

95606130

95606136

93916066

96406004

96406906

96906904

95276006

92306006

94106066

O-Ring, Pushrod Guide ID

O-Ring, Reset Housing ID

O-Ring, Upper Seat

O-Ring, Lower Seat

O-Ring, Reset Housing OD

Clapper Gasket

Hinge Pin

Lever Pin

Threaded Stud, #10-32 x ¾"

Locking Pin (not shown)

Piston

Socket Plug

3

/

8

” - 18 NPT (not shown)

Pushrod

Pushrod Guide

Retaining Ring, 1/2" Shaft

Button Head Screw #10-32 x

3

/

8

"

Hex Washer Head Screw #10-32 x

3

/

8

"

Hex Cap Screw ½"-13 x 1½"

Hex Cap Screw

5

/

8

"-11 x 1¾"

Spring Lock Washer, #10

Flat Head Socket Cap Screw

3

/

8

"-16 x ¾"

Socket Head Screw #10-32 x 1"

Socket Head Screw, ¼"-20 x 5

/

8

"

Reset Shaft

Lever Spring

Piston/ Reset Spring

Clapper Spacer

Diaphragm

Bumper Disc

Reset Housing

Reset Knob

O-Ring Grease, Dupont tm

Krytox

®

GPL-205

Knob Caution Label (Not Shown)

Ball Chain, 1/8" (Not Shown) (Length is in Inches)

Clamping Link, Ball Chain (Not Shown)

QTY.

2

1

1

3

1

4

2

1

2

2

1

1

1

1

1

1

1

1

1

1

1

1

1

1

6

6

1

1

2

3

1

1

1

1

A/R

1

6

1

1

1

1

Material

Ductile Iron 65-45-12

Brass UNS C86300

Brass UNS C86300

Ductile Iron 65-45-12

Stainless Steel 304 & EPDM

Buna-N or Neoprene

Stainless Steel UNS S17400

Ductile Iron 65-45-12 & Brass

UNS C36000

Buna-N

Buna-N

Buna-N

Buna-N

Buna-N

Buna-N or Neoprene

Stainless Steel UNS S21800

Stainless Steel UNS S44000

Stainless Steel 18-8

Stainless Steel UNS S44000

Stainless Steel CF8M

Steel

Stainless Steel UNS S30300

Acetal

Stainless Steel 15-7 or 17-7

Stainless Steel 18-8

Zinc Plated Steel

Stainless Steel UNS S31600

Steel

Stainless Steel UNS S31600

Steel

Brass UNS C36000

Stainless Steel UNS S30400

Stainless Steel UNS S31600

Teflon

EPDM & Polyester

SBR Rubber

Brass UNS C36000

Aluminum 6061

Krytox

®

Polystyrene

Nickel Plated Brass

20.

the bumpstop nuts (#10, Fig. 7) onto the threaded studs of the seal assembly (#8, Fig.

7) and tighten finger tight plus ¼ to ½ turn. If inspection indicates damage to the clapper

(#6, Fig. 7) only, then the clapper subassembly can be removed as follows:

At the rear of the valve, disconnect the water column drain trim section starting with the elbow connector (#22, Fig. 2 or #21, Fig.

3). Then remove the ¼” globe valve (#33,

Fig. 2 or #32, Fig. 3), followed by the ¾”x¼” reducing bushing (#53, Fig. 2 or #53, Fig.

3). Remove the retaining ring (condensate drain side for 2” (50mm), 2½” (65mm), 3”

(80mm), 76mm and 8” (200mm) valve sizes or hand hole cover side for 4” (100mm), 6”

(150mm) and 165mm valve sizes) from the clapper hinge pin (#30, Fig. 7) and push this pin through the hand hole opening for

2” (50mm), 2½” (65mm), 3” (80mm), 76mm and 8” (200mm) valve sizes or condensate drain side for 4” (100mm), 6” (150mm) and

165mm valve sizes and remove the clapper subassembly. Replace the seal assembly as described previously. Inspect the clapper

(#6, Fig. 7) visually before reinstalling. Reinstall in the reverse order making sure the clapper spacers are in their proper position.

If the seat (#29, Fig. 7) is damaged or it is suspected that the leakage is through the lower O-ring (#24, Fig. 7), the seat-clapper subassembly is easily removed as a unit as follows:

Using Reliable P/N 6881603000 Seat

Wrench for 2” (50mm), 2½” (65mm), 76mm and 3” (80mm) valve sizes, Reliable P/N

6881604000 for 4” (100mm) valve size, Reliable P/N 6881606000 for the 6” (150mm) and 165mm valve sizes or Reliable P/N

6881608000 Seat Wrench for 8” (200mm) valve size, remove the seat by unscrewing.

This will loosen the seat-clapper-mounting ring subassembly. Reach into the valve and grasp the seat and remove it from the valve.

Then remove the clapper-mounting ring subassembly from the valve. Visually examine all components of the seat-clapper-mounting ring subassembly replacing any component that appears damaged. New O-rings (#23 &

#24, Fig. 7 and #2, Fig. 7 (8” (200mm) valve size only)) should always be used for reassembly.

For Valve Sizes: 4” (100mm), 165mm, 6”

(150mm) with Drop-In Seat Confi guration only, Refer to Fig. 3 and Fig. 8:

At the rear of the valve, disconnect the water column drain trim section starting with the elbow connector (#21, Fig. 3). Then remove the ¼” globe valve (#32, Fig. 3), followed by the ¾”x¼” reducing bushing (#53,

Fig. 3). Remove the retaining ring (hand hole cover side) from the clapper hinge pin (#14,

Fig. 8) and push this pin through the hand hole condensate drain port and remove the

21.

clapper subassembly. Remove the four retaining screws (#24, Fig. 8) holding the seal faceplate assembly (#5, Fig. 8). Inspect the clapper (#3, Fig. 8) visually before installing.

Apply a small amount of silicone based lubricant to the four retaining screws. Install a new seal faceplate assembly. Torque the retaining screws to approximately 40 inchpounds and reassemble. If the seat (#2,

Fig. 8) is damaged or it is suspected that the leakage is through the lower o-ring (#11, Fig.

8), the seat-clapper subassembly is easily removed as a unit as follows:

Using a 5/16” Allen wrench, remove the two

3/8” NPT pipe plugs (#19, (not shown) Fig.

8) located on the side chamber side of the

Model DDX deluge valve. The seat-clapper subassembly is retained by two locking pins

(#17, (not shown) Fig. 8). The centers of these pins have a ¼”-20 threaded hole. Remove the two locking pins by engaging them with a ¼”-20 screw and pulling them out (the two locking pins are not externally threaded, so turning them with the attached ¼”-20 screw or threaded rod is not recommended.

A proven method is to use ¼”-20 threaded rod with a locknut on the unassembled end.

Grab hold of the locknut with a pliers or visegrips and tap the pliers or vise-grips in the direction away from the Deluge Valve. Doing so should pull the locking pins out of the

Deluge Valve. With the clapper (#3, Fig. 8) in the closed position (not latched), dislodge the clapper-seat subassembly from the valve body by inserting two slotted screwdrivers under the lever and clapper mounting ears and pry up until the clapper-seat subassembly is free from its bore. Reach into the valve and grasp the clapper-seat subassembly from the sides. Making sure the clapper is in the closed position (see Fig. 1), lift up and rotate the clapper-seat sub assembly clockwise 90 degrees so that the lever side of the assembly is facing up towards the outlet of the deluge valve. Next, rotate the clapperseat sub assembly 90 degrees about the centerline of the valve so that the clapper is facing the hand hole opening and the lever is still facing the outlet of the deluge valve.

Then rotate the clapper-seat sub assembly

90 degrees, so that the clapper is now facing the outlet of the deluge valve and the lever is now facing the back of the valve. Pull the clapper-seat sub assembly out through the hand hole opening by the hinge pin side.

Rotating the seat-clapper subassembly up as it is being removed will help it slide out more easily since the lever will prohibit it from sliding straight out. Visually examine all components of the clapper-seat subassembly replacing any component that appears damaged. New o-rings (#11, Fig. 8) should always be used for reassembly.

Reassembly:

For Valve Sizes: 2” (50mm), 2½” (65mm),

76mm, 3” (80mm), 8” (200mm) and 4”

(100mm), 6” (150mm) & 165mm with Screw-

In Seat Confi guration only, Refer to Fig. 7:

Clean the bore of the valve body. Lubricate the bore with O-ring grease. Lubricate and install the O-rings (#23 & #24, Fig. 8) onto the seat. Lubricate and install the mounting ring o-ring (#2, Fig. 7) into the body (8” (200mm) valve size only). Insert the clapper-mounting ring subassembly into the handhold opening of the Deluge Valve using caution to not damage or dislodge the mounting ring oring (#2, Fig. 7)(8” (200mm) valve size only).

Align the mounting ring so that the Lever

(#15, Fig. 7) is near the pushrod (#25, Fig. 7) and the mounting ring (#5, Fig. 7) “ears” are between the tabs of the valve body (#1, Fig.

7). Insert the seat (#29, Fig. 7) into the valve body (#1, Fig. 7) and through the clappermounting ring subassembly. Start to tread the seat (#29, Fig. 7) into the body by hand, then tighten the seat (#29, Fig. 7) with Reliable P/N 6881603000 Seat Wrench for 2”

(50mm), 2½” (65mm), 76mm and 3” (80mm) valve sizes, Reliable P/N 6881604000 Seat

Wrench for 4” (100mm) valve size, Reliable

P/N 688106000 Seat Wrench for 6” (150mm and 165mm valve sizes or Reliable P/N

6881608000 Seat Wrench for 8” (200mm) valve size until it bottoms out on the mounting ring (#5, Fig. 7). Verify that the seat-clapper-mounting ring subassembly is in the fully down position between the tabs of the body, and check to see that the lever (#15, Fig.

7) lines up with the push rod (#25, Fig. 7).

Loosen and reassemble if necessary. Reassemble the handhold cover (#7, Fig. 7) and set up the Model DDX Deluge Valve as per the section “Resetting Model DDX Double Interlock Type D Preaction Systems.”

For Valve Sizes: 4” (100mm), 165mm, 6”

(150mm) with Drop-In Seat Confi guration only, Refer to Fig. 8:

It is likely that the lower seat o-ring (#11, Fig.

8) has remained at the bottom of the Deluge

Valve body’s bore. Discard this o-ring and clean the bore. Lubricate the bore with oring grease and place the lower o-ring on the step at the bottom of the bore, verifying that it is in full contact with the bore. Lubricate the bottom step and upper o-ring (#11, Fig. 8) of the refurbished clapper-seat subassembly.

Insert the clapper-seat sub assembly into the hand hole opening, lever (#7, Fig. 8) first and rotating the clapper-seat subassembly until the lever faces the outlet of the deluge valve. Next rotate the clapper-seat subassembly 90 degrees about the center axis of the valve until the bottom of the clapper-seat sub assembly faces the pushrod (#20, Fig.

8). Then rotate the clapper-seat subassembly 90 degrees counterclockwise so that the

22.

clapper (#3, Fig. 8) is facing the outlet of the deluge valve and the lever (#7, Fig. 8) is facing the pushrod (#20, Fig. 8). Once the clapper seat subassembly is in this position simply slide the assembly into the bore of the valve, making sure it is straight to avoid binding of the seat in the bore. Slightly twisting the assembly will assist in getting the clapper-seat subassembly properly seated.

Once it is verified that the clapper-seat sub assembly is in the fully down position and the lever (#7, Fig. 8) is aligned with the pushrod (#20, Fig. 8), clean and lubricate the two locking pins (#17, (not shown) Fig. 8) with o-ring lubricant. Slide the two locking pins into the deluge valve body to lock the seat in place. Slightly twisting and pressing down on the clapper-seat subassembly will help the pins to slide in more easily. Then reinstall the 3/8” NPT pipe plugs (#19, (not shown) Fig. 8). Reassemble the hand hole cover (#4, Fig. 8) and set up the Model DDX

Deluge Valve as per the section “Resetting

Model DDX Double Interlock Type D Preaction Systems”.

3. Leakage out of the push rod chamber vent hole:

A small bleed hole is located on the underside of the push rod chamber (see Fig. 7 or Fig. 8). If there is air or water leakage coming out of this hole, do the following: a) Shut down the valve controlling water supply to the

Deluge Valve. Relieve the inlet pressure by opening the 1¼” main drain valve on the 2” (50mm), 2½”

(65mm), 76mm and 3” (80mm) valve sizes or the

2” main drain valve on the 4” (100mm), 165mm, 6”

(150mm) and 8” (200mm) valve sizes, valve B (Fig.

9). Close the valve A (Fig. 9) that supplies water to the push rod chamber, and open the Model B Manual Emergency Station, valve D (Fig. 9).

b) Remove the trim at the unions nearest to the push rod chamber cover (#3, Fig. 9).

c) Take the push rod chamber cover (#3, Fig. 7 or #8,

Fig. 8) off by removing the six retaining screws (#26,

Fig. 7 or #29, Fig. 8).

CONDITION ONE (Water coming out of the bleed hole):

Water coming out of the bleed hole is caused by a leaking diaphragm (#18, Fig. 7 or #34,

Fig. 8). Visually inspect the push rod chamber cover (#3, Fig. 7 or #8, Fig. 8), piston (#17, Fig.

7 or #18, Fig. 8) and valve bore (#1, Fig. 7 or

#1, Fig. 8) to determine what could have damaged the diaphragm and correct. Install a new diaphragm. NOTE: The diaphragm has two different surfaces; it is not bi-directional. It will fail if installed backwards! Roll the diaphragm so that the smooth surface (the pressure side) conforms to the inside of the push rod chamber cover and reassemble the six retaining screws (#26, Fig.

7 or #29, Fig. 8) with an installation torque of

15 foot-pounds. Set up the Model DDX Deluge

Valve as per the section “Resetting Model DDX

Double Interlock Type D Preaction Systems.”

CONDITION TWO (System Air coming out of the bleed hole):

System air coming out of the bleed hole is caused by a defective O-ring assembled to the push rod guide (#11, Fig. 7 or #9, Fig. 8). Remove the piston-push rod subassembly, push rod spring

(#34, Fig. 7 or #32, Fig. 8), and push rod guide

(#11, Fig. 7 or #21, Fig. 8). Verify by hand turning, that the push rod cannot be unscrewed from the piston. Replace all O-rings and the push rod guide (#21, #22 & #11, Fig. 7 or #9, #12 & #21,

Fig. 8). The correct installation torque for the pushrod guide is 35 inch-pounds. CAUTION: Do not over tighten the push rod guide. Reassemble the components that were initially removed. Reinstall the diaphragm (#18, Fig. 7 or #34, Fig. 8) if it appears to be in good shape, otherwise, replace it also. NOTE: The diaphragm has two different surfaces; it is not bi-directional. It will fail if installed backwards! Roll the diaphragm so that the smooth surface (the pressure side) conforms to the inside of the push rod chamber cover and reassemble the six retaining screws (#26, Fig.

7 or #29, Fig. 8) with an installation torque of

15 foot-pounds. Set up the Model DDX Deluge

Valve as per the section “Resetting Model DDX

Double Interlock Type D Preaction Systems.”

Fig. 9

23.

Fig. 10

Ordering Information

Specify:

•

Valve Model & Size —

Valve Part Numbers

Valve Size

&

End Connection

Flange Type Color Reliable Part Number

2” (50mm) Grv/Grv

2½” (65mm) Grv/Grv

3” (80mm) Grv/Grv

76mm Grv/Grv

4” (100mm) Grv/Grv

4” (100mm) Flg/Grv

4” (100mm) Flg/Flg

6” (168mm) Grv/Grv

6” (168mm) Flg/Grv

6” (168mm) Flg/Flg

165mm Grv/Grv

165mm Flg/Grv

8” (200mm) Grv/Grv

8” (200mm) Flg/Flg

N/A

N/A

N/A

N/A

N/A

ASME Class 150

ASME Class 150

ISO PN16

ASME Class 150

ASME Class 150

ISO PN16

N/A

ASME Class 150

ASME Class 150

ISO PN16

ASME Class 150

ASME Class 150

ISO PN16

N/A

ASME Class 150

ISO PN16

N/A

ASME Class 150

ASME Class 150

Red

Black

Red

Red

Black

Red

Red

Red

Red

Red

Black

Red

Black

Red

Black

Red

Black

Red

Red

Black

Red

Red

Black

Black

Red

Black

Red

Black

Red

Red

6103060030

6103060045

6103060048

6103060049

6103060046

6103060047

6103060050

6103060028

6103060051

6103060052

6103080001

6103080003

6103080016

6103080018

6103022000

6103022001

6103022500

6103022501

6103030000

6103030001

6103027600

6103040026

6103040030

6103040044

6103040046

6103040048

6103040045

6103040047

6103040049

6103060024

ISO PN16 Red 6103080020

•

Trim — Double Interlock Type D Preaction Trim. Each trim set is available in individual parts, in time-saving, segmentally assembled kit forms, or fully assembled to the Model DDX Deluge Valve with or without a control valve). The Double Interlock Type D trim is available with a 175 psi (12,1 bar) or 300 psi (20,7 bar) rated solenoid valve.

Note: For metric installations, a 1¼” NPT x R1¼. ISO 7/1 x Close Nipple (Reliable P/N 98543403) or a 2” NPT x R2.

ISO 7/1 x Close Nipple (Reliable P/N 98543401) is sold separately as an adapter for the single drain outlet of the trims.

25.

{

{

175 psi

(12,1 bar)

Rated

Solenoid

Valve

Rated

Solenoid

Valve

300 psi

(20,7 bar)

{

UL/FM

Double Interlock Type D Preaction Trim Confi gurations

Valve Size & End

Connection

2" (50mm) Grv/Grv

2½" (65mm) Grv/Grv

3" (80mm) Grv/Grv

76mm Grv/Grv

4" (100mm) Grv/Grv

4" (100mm) Flg/Grv

4" (100mm) Flg/Flg

6" (168mm) Grv/Grv

6" (168mm) Flg/Grv

6" (168mm) Flg/Flg

165mm Grv/Grv

165mm Flg/Grv

8" (200mm) Grv/Grv

8" (200mm) Flg/Flg

2" (50mm) Grv/Grv

2½" (65mm) Grv/Grv

3" (80mm) Grv/Grv

76mm Grv/Grv

4" (100mm) Grv/Grv

4" (100mm) Flg/Grv

4" (100mm) Flg/Flg

6" (168mm) Grv/Grv

6" (168mm) Flg/Grv

6" (168mm) Flg/Flg

165mm Grv/Grv

165mm Flg/Grv

8" (200mm) Grv/Grv

8" (200mm) Flg/Flg

Flange Type

N/A

N/A

N/A

N/A

Color

Black

Red

Black

Red

Black

Red

Red

N/A

Black

Red

ASME Class 150 Black

ASME Class 150 Red

ISO PN16 Red

ASME Class 150 Black

ASME Class 150 Red

ISO PN16 Red

N/A

Black

Red

ASME Class 150 Black

ASME Class 150 Red

ISO PN16 Red

ASME Class 150 Black

ASME Class 150 Red

ISO PN16 Red

N/A Red

ASME Class 150 Red

ISO PN16

N/A

Red

Black

Red

ASME Class 150 Black

ASME Class 150 Red

ISO PN16

N/A

Red

Black

Red

N/A

N/A

Black

Red

Black

Red

N/A Red

Black

N/A

Red

ASME Class 150 Black

ASME Class 150 Red

ISO PN16 Red

ASME Class 150 Black

ASME Class 150 Red

ISO PN16 Red

Black

N/A

Red

ASME Class 150 Black

ASME Class 150 Red

ISO PN16 Red

ASME Class 150 Black

ASME Class 150 Red

ISO PN16 Red

N/A Red

ASME Class 150 Red

ISO PN16 Red

Black

N/A

Red

ASME Class 150 Black

ASME Class 150 Red

ISO PN16 Red

Trim Part Numbers

Trim Confi gurations

Individual Parts

(Model DDX Valve

Segmentally Assembled

(Model DDX Valve Sold

Sold Seperately) Seperately)

Fully Assembled to Fully Assembled to

Model DDX Valve w/o Control Valve

Model DDX Valve w/

Control Valve

6503002437 6503002438

6505020026

6505A20026

6505022526

6505A22526

6505030026

6505A30026

6505020025

6505A20025

6505022525

6505A22525

6505030025

6505A30025

6503031420

6503002445

6503031422

6503031421

6503002446

6503031423

6505A27626

6505040226

6505A40226

6505043226

6505A43226

6505A44226

6505047226

6505A47226

6505A48226

6505022546

6505A22546

6505030046

6505A30046

6505A27646

6505040246

6505A40246

6505043246

6505A43246

6505A44246

6505047246

6505A47246

6505A48246

6505060246

6505A60246

6505063246

6505A63246

6505A64246

6505067246

6505A67246

6505A68246

6505A65246

6505A66246

6505A69246

6505080246

6505A80246

6505083246

6505A83246

6505A84246

6505060226

6505A60226

6505063226

6505A63226

6505A64226

6505067226

6505A67226

6505A68226

6505A65226

6505A66226

6505A69226

6505080226

6505A80226

6505083226

6505A83226

6505A84226

6505020046

6505A20046

N/A

6505040225

6505A40225

N/A

N/A

6505060225

6505A60225

N/A

N/A

N/A

N/A

6505080225

6505A80225

N/A

6505020045

6505A20045

6505022545

6505A22545

6505030045

6505A30045

N/A

6505040245

6505A40245

N/A

N/A

6505060245

6505A60245

N/A

N/A

N/A

N/A

6505080245

6505A80245

N/A

26.

Valve Size & End

Connection

2" (50mm) Grv/Grv

2½" (65mm) Grv/Grv

3" (80mm) Grv/Grv

76mm Grv/Grv

4" (100mm) Grv/Grv

4" (100mm) Flg/Grv

4" (100mm) Flg/Flg

6" (168mm) Grv/Grv

6" (168mm) Flg/Grv

6" (168mm) Flg/Flg

165mm Grv/Grv

165mm Flg/Grv

8" (200mm) Grv/Grv

8" (200mm) Flg/Flg

2" (50mm) Grv/Grv

2½" (65mm) Grv/Grv

3" (80mm) Grv/Grv

76mm Grv/Grv

4" (100mm) Grv/Grv

4" (100mm) Flg/Grv

4" (100mm) Flg/Flg

6" (168mm) Grv/Grv

6" (168mm) Flg/Grv

6" (168mm) Flg/Flg

165mm Grv/Grv

165mm Flg/Grv

8" (200mm) Grv/Grv

8" (200mm) Flg/Flg

Flange Type Color

N/A

N/A

N/A

N/A

N/A

ASME Class 150 Black

ASME Class 150 Red

ISO PN16 Red

ASME Class 150 Black

ASME Class 150 Red

ISO PN16 Red

N/A

Black

Red

ASME Class 150 Black

ASME Class 150 Red

ISO PN16 Red

ASME Class 150 Black

ASME Class 150 Red

ISO PN16 Red

N/A Red

ASME Class 150 Red

ISO PN16

N/A

Red

Black

Red

ASME Class 150 Black

ASME Class 150 Red

ISO PN16 Red

N/A

N/A

Black

Red

Black

N/A

N/A

Red

Black

Red

Red

Black

Red

Black

Red

Black

Red

Red

Black

Red

N/A

Black

Red

ASME Class 150 Black

ASME Class 150 Red

ISO PN16 Red

ASME Class 150 Black

ASME Class 150 Red

ISO PN16 Red

N/A

Black

Red

ASME Class 150 Black

ASME Class 150 Red

ISO PN16 Red

ASME Class 150 Black

ASME Class 150 Red

ISO PN16 Red

N/A Red

ASME Class 150 Red

ISO PN16

N/A

Red

Black

Red

ASME Class 150 Black

ASME Class 150 Red

ISO PN16 Red

Trim Part Numbers

{

{

175 psi

(12,1 bar)

Rated

Solenoid

Valve

Solenoid

Valve

300 psi

(20,7 bar)

Rated

{

ULC

Double Interlock Type D Preaction Trim Confi gurations (Continued)

Trim Confi gurations

Individual Parts

(Model DDX Valve

Sold Seperately)

Segmentally Assembled Fully Assembled to

(Model DDX Valve Sold

Seperately)

Model DDX Valve w/o Control Valve

Fully Assembled to

Model DDX Valve w/

Control Valve

6505020056

6505A20056

6505020055

6505A20055

6503002441 6503002442

6505022556

6505A22556

6505030056

6505A30056

6505A27656

6505040256

6505A40256

6505022555

6505A22555

6505030055

6505A30055

N/A

6505040255

6505A40255

6505043256

6505A43256

6505A44256

6505047256

6505A47256

6505A48256

6505060256

6505A60256

N/A

N/A

6505060255

6505A60255

6503031424

6503002449

6503031425

6503002450

6505063256

6505A63256

6505A64256

6505067256

6505A67256

6505A68256

6505A65256

6505A66256

6505A69256

6505080256

6505A80256

6505087256

6505A87256

6505A88256

6505020066

6505A20066

6505025566

N/A

N/A

N/A

N/A

6505080255

6505A80255

N/A

6505020065

6505A20065

6505025565

6505A25565

6505030065

6505A30065

N/A

6505040260

6505A40260

6503031426 6503031427

6505A25566

6505030066

6505A30066

6505A27666

6505040261

6505A40261

6505043261

6505A43261

6505A44261

6505047261

6505A47261

6505A48261

6505060261

6505A60261

6505063261

6505A63261

6505A64261

6505067261

6505A67261

6505A68261

6505A65261

6505A66261

6505A69261

6505080261

6505A80261

6505087261

6505A87261

N/A

N/A

6505060260

6505A60260

N/A

N/A

N/A

N/A

6505080260

6505A80260

N/A

6505A88261

27.

7

8

9

10

11

12

13

14

•

Item

No.

Additional equipment — (Refer to Fig. 10).

Component Part Mfgr.

Water Supply Control Valve Select

1

2

3

Tamper Switch

(Optional) for OS&Y Valve

Tamper Switch

(Optional) for Butterfly Valve

Deluge Valve

Double Interlock Trim Kit (Type D)

D

B

B

4 Waterflow Alarm /Low Air Pressure Switch

5 Mechanical Alarm (Optional)

Releasing / Control Panel

Batteries

6

Optional Accessories

D

B

C

Alarm Annunciator

Trouble Annunciator

Manual Emergency Station (Elec.)

Detection

Sprinklers

Air Compressor

Pressure Maintenance Device

Nitrogen Regulating Device

A

A

A

Select

B

E

B

B

Description

OS&Y

Butterfly

Model OS&Y2

Model P1BV2

Model DDX

Refer to Parts List in this Bulletin

Model EPS10-2 (DPDT, UL, FM)

Model EPSA10-2 (DPDT, ULC)

Model C

Model PFC-4410-RC

12 VDC, 12 AMP Hours (90 Hours Backup) FM

12 VDC, 7 AMP Hours (60 Hours Backup)

CA2Z (Class A Wiring Module for Initiating Circuits)

CAM (Class A Wiring Module for Indicating Circuits)

ARM-1 / ARM-2 (Auxiliary Relay Module)

RA-4410-RC (Remote Annunciator)

Model SSM24-8 24 VDC / Polarized Bell

Model SSM24-10 24 VDC / Polarized Bell

Model MA24-D 24 VDC / Polarized Sounder

Model MASS24LO 24 VDC / Polarized Sounder Strobe

Model SSM24-6 24 VDC / Polarized Bell

Model MA24-D 24 VDC / Polarized Sounder

Model BNG-1 (SPDT) 1 & 2 Area Detection

Model BNG-1F (DPDT) Cross Zoned Detection

Smoke, Heat Detectors, etc.

Closed Type

Tank mounted; sized per NFPA 13

Model A-2

Regulator with Optional Low Air Pressure Switch

Technical Bulletin

-

-

System Sensor

A05-0196

System Sensor

A05-0197

Reliable 518/519

Reliable 750

System Sensor

WFDS51701

Reliable 612 / 613

Potter #5403550

-

-

-

-

Reliable 110, 117, 131,

136, etc.

Gast F-30

Reliable 254

Reliable 254

System Equipment Manufacturers

(A) Notifier

(B) Reliable Automatic Sprinkler Co., Inc.

(C) Potter Electric Signal Company

(D) System Sensor

(E) Gast Mfg, Inc.

28.

Nominal

Pipe Size

A

2”

(50 mm)

8

(203)

2½” (65 mm), 3” (80 mm) & 76 mm

8

(203)

4”

(100 mm)

7¼

(184)

6” (150 mm)

& 165 mm

7¼

(184)

B

7

(178)

7

(178)

7½

(191)

8½

(215)

C

9½

(241)

9½

(241)

10

(254)

11

(280)

Installation Dimensions in Inches (mm)

D* D** D*** D**** E

12½

(318)

21¼

(540)

N/A N/A

19

(283)

F

33¾

(679)

G

6

(152)

H

7

(178)

J

4¼

(108)

K

5½

(140)

12½

(318)

14

(356)

16

(406)

22

(559)

24¼

(616)

27½

(699)

N/A N/A

16

(406)

19

(483)

16

(406)

19

(483)

19

(283)

19¾

(502)

21½

(546)

33¾

(679)

34¼

(629)

36¼

(673)

6

(152)

7½

(191)

8

(203)

7

(178)

4¼

(108)

7

(178)

5½

(140)

7

(178)

5½

(140)

5½

(140)

8¼

(210)

8¼

(210)

L

11

(279)

11

(279)

13½

(343)

13¾

(349)

8”

(200 mm)

7¼

(184)

9¼

(235)

11½

(292)

19

3

/

8

(492)

30¼

(768)

N/A

21¼

(540)

28¼

(718)

43

(1092)

9

(229)

7

(178)

5½

(140)

8¼

(210)

D* is total takeout for Fully Assembled to Grv/Grv DDX Valve w/o Control Valve Configurations

D** is total takeout for Fully Assembled to Grv/Grv DDX Valve w/ Control Valve Configurations

D*** is total takeout for Fully Assembled to Flg/Grv DDX Valve w/o Control Valve Configurations

D**** is total takeout for Fully Assembled to Flg/Flg DDX Valve w/o Control Valve Configurations

14½

(368)

M

3

(76)

3

(76)

5

(127)

4¾

(121)

3½

(89)

N

4½

(114)

4½

(114)

P

9

(229)

9

(229)

6¾

(171)

6½

(165)

5¼

(133)

8

(203)

8¾

(222)

8½

(216)

Q

9¼

(235)

R

28

(711)

9¼

(235)

28

(711)

11¾

(298)

12

(305)

28

(711)

28

(711)

12¾

(324)

28

(711)

29.

SOLENOID VALVE INSPECTIONS, TESTS AND MAINTENANCE

WARNING: THE OWNER IS RESPONSIBLE FOR MAINTAINING THE FIRE PROTECTION SYSTEM IN PROPER

OPERATING CONDITION. ANY SYSTEM MAINTENANCE OR TESTING THAT INVOLVES PLACING A CONTROL

VALVE OR DETECTION SYSTEM OUT OF SERVICE MAY ELIMINATE THE FIRE PROTECTION OF THAT SYS-

TEM. PRIOR TO PROCEEDING, NOTIFY ALL AUTHORITIES HAVING JURISDICTION. CONSIDERATION SHOULD

BE GIVEN TO EMPLOYMENT OF A FIRE PATROL IN THE AFFECTED AREA.

WARNING: PRIOR TO OPERATING THE SOLENOID VALVE, BE SURE TO CLOSE THE SYSTEM CONTROL

VALVE TO AVOID UNINTENTIONAL OPERATION OF THE DELUGE VALVE

1. Inspections: It is imperative that the system be inspected and tested in accordance with NFPA 25 on a regular basis.

The frequency of the inspections may vary due to contaminated water supplies, corrosive water supplies, or corrosive atmospheres. In addition, the alarm devices, detection systems, or other connected trim may require a more frequent schedule. Refer to the system description and applicable codes for minimum requirements.

2. The valve must be inspected at least monthly for cracks, corrosion, leakage, etc., cleaned and replaced as necessary.

3. If leakage is suspected through the solenoid valve, it should be replaced.

The equipment presented in this bulletin is to be installed in accordance with the latest published Standards of the National Fire Protection Association, Factory

Mutual Research Corporation, or other similar organizations and also with the provisions of governmental codes or ordinances whenever applicable.

Products manufactured and distributed by Reliable have been protecting life and property for over 90 years, and are installed and serviced by the most highly qualified and reputable sprinkler contractors located throughout the United States, Canada and foreign countries.

Manufactured by

Reliable Automatic Sprinkler Co., Inc.

(800) 431-1588

(800) 848-6051

(914) 829-2042

Sales Offices

Sales Fax

Corporate Offices www.reliablesprinkler.com Internet Address

Recycled

Paper

Revision lines indicate updated or new data.

EG. Printed in U.S.A. 06/15

P/N 9999970441