Reliable Single Interlock Preaction System Instruction manual

Bulletin 736 Rev. B
Instructions for
Installation, Operation,
Care and Maintenance
•
•
•
Bulletin 736 Rev. B
Single Interlock
Electric Release
Preaction System
2” (50mm), 21/2” (65mm),
3” (80mm) & 76mm Sizes
Available with 175 psi (12,1 bar) or
250 psi (17,2 bar) Rated Solenoid
Valve
Externally Resettable Clapper
One Main Drain
2 PSI (0,14 bar) Pneumatic Supervising
Pressure with Electric Actuation
The Reliable Automatic Sprinkler Co., Inc., 103 Fairview Park Drive, Elmsford, New York 10523
General Description
Single Interlock Preaction Systems are designed for water-sensitive areas that require protection from inadvertent
water flow into the sprinkler system piping.
Sprinkler piping in single interlock systems can effectively
be supervised by means of a Reliable Model B Air Compressor Panel or Model C Pressure Maintenance Device. Loss
of 2 psi (0,14 bar) supervising pneumatic pressure, due to
a damaged sprinkler or sprinkler pipe will not cause water
to flow through the Model DDX Deluge Valve and into the
system piping. A significant loss of pneumatic pressure
will activate a trouble-annunciating device when the system
pressure falls below 0.7 psi (0,05 bar).
When one electrical detector senses the presence of fire,
the electrical releasing control panel activates fire alarm devices and latches the normally-closed solenoid valve (175
psi (12,1 bar) or 250 psi (17,2 bar) Rated) in the open position (Note: Arranging detectors in a cross-zoned pattern will
require operation of two detectors before the solenoid valve
can open). The solenoid valve, when closed, retains sufficient water pressure in the pushrod chamber of the Model
DDX Deluge Valve to maintain it closed. Energizing the solenoid valve relieves the water pressure, thus opening the
Deluge Valve and allowing water to flow into the sprinkler
system.
To fully operate a cross-zoned single interlock system, two
electrical detectors must activate and a sprinkler head must
open. During the early stages of a fire, smoke or heat activates the first detector, which causes the control panel to
produce a local alarm and an alarm at the main fire alarm
panel. Electrical relays inside the releasing control panel
can be used to shut down air moving equipment or activate
security doors and other electrical devices when the panel
goes into the first alarm condition. Subsequent activation of
a second, nearby or adjacent, detector will cause the panel
to energize the solenoid valve open and release water into
the sprinkler system piping. Water flowing into the sprinkler
system piping will simultaneously produce water pressure
that causes the transfer of contacts in the pressure switch
mounted in the Reliable Single Interlock Preaction System’s
riser assembly. This pressure switch can electrically initiate
the shutdown or startup of equipment, such as computers or
other second alarm devices. The flow of water into the sprinkler system piping effectively converts the dry system into a
wet pipe system. In the event that the fire subsequently produces sufficient heat to operate a sprinkler head, water will
flow from that sprinkler, controlling or suppressing the fire.
The major benefits of a single interlock preaction system,
when compared with a wet pipe (deluge) system are as follows:
• A fire alarm sounds prior to the operation of a
sprinkler head, which may enable extinguishing
the fire by handheld means before the actual operation of any sprinklers and subsequent water
damage.
• A trouble annunciator signals whenever the integrity of the piping or sprinklers is accidentally
or intentionally disturbed; however, no water flow
or water damage will occur at that time.
• Speedy detection and an early fire alarm are provided by fire detectors, without the delay associated with water delivery time in the event of a fire.
Note that with a wet pipe system, the fire alarm is
delayed until after water has begun flowing from
an operated sprinkler head.
At the heart of Reliable’s Single Interlock Preaction System is the Model DDX Deluge Valve. This Deluge Valve is a
hydraulically operated, straight-through-design, differentialtype valve (see Fig. 1). System maintenance is simplified
since priming water is not required and the 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 Single Interlock Preaction System trim set
(see Fig. 2) provides all of the necessary equipment for connections to the Model DDX Deluge Valve’s pushrod chamber inlet and outlet ports, the 1¼” main drain, alarm devices,
air supply, water supply, and required pressure gauges.
This 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).
Listings & Approvals
Reliable 2” (50mm), 21/2” (65mm), 3” (80mm) and 76mm
Single Interlock Preaction Systems are Underwriters Laboratories, Inc. Listed and UL certified for Canada (cULus) in the
Special System Water Control Valves – Deluge Type (VLFT)
category.
Reliable 2” (50mm), 21/2” (65mm), 3” (80mm) and 76mm
Single Interlock Preaction Systems are certified by Factory
Mutual Approvals (FM). Factory Mutual does not approve
the use of smoke detectors or cross-zoned detectors in preaction systems.
The NYC acceptance number for this system is MEA 25893-E.
Reliable Single Interlock Preaction Systems are UL Listed
and FM Approved only when used with the trim components
shown in Fig. 2.
2.
3.
Fig. 1
4.
Fig. 2
Single Interlock Electric Release Preaction Trim Parts List (Refer to Fig. 2)
Item
Part Number
No.
6103022000
6103022500
1
6103030000
6103027600
7G05080800
2
7G05101000
7G05121200
6205212000
3
6215051000
6215051200
7D05414200
4
7D05424200
7D05434200
5
6871020000
6871020020
6
98048025
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
98048000
78653000
78653004
98048015
98048022
96816902
92056810
92056702
92056704
92056705
98050004
98174400
98543227
98174414
98174403
98174401
98174404
98174402
96920912
98248000
98248001
94616917
98543239
98543250
98543285
98543263
98543213
98543223
98543228
98543209
98543230
98543212
98543226
98543243
98543232
98543231
99080002
98750003
98604406
Description
Assembly, Valve, 2” (50mm) DDX
Assembly, Valve, 21/2”” (65mm) DDX
Assembly, Valve, 3” (80mm) DDX
Assembly, Valve, 76mm DDX
Coupling, Rigid, 2” (50mm)
Coupling, Rigid, 2½” (65mm)
Coupling, Rigid, 3” (80mm)
Water - Ball Valve, 2” (50mm)
Water - Butterfly Valve, 2½” (65mm)
Water - Butterfly Valve, 3” (80mm)
Coupling, 2” (50mm) Grooved
w/ ½” NPT outlet
Coupling, 2½” (65mm) Grooved
w/ ½” NPT outlet
Coupling, 3” (80mm) Grooved
w/ ¾” NPT outlet
Valve, Solenoid (175 psi)
Valve, Solenoid (250 psi)
Bushing, Reducer, ¾” x ¼”
(2” & 2½” Valve only)
Bushing, Reducer, ¾” x ¼”
(3” Valve only)
Bushing, Reducer, ½” x ¼”
(2” & 2½” Valve only)
Bushing, Reducer, ½” x ¼”
(3” Valve only)
Model B Manual Emergency Station
Valve, Caution Station, ½”
Reducer, 2” x 1”, PVC
Bushing, Reducer, ¾” x ½”
Valve, Check, ¼” In-Line
Brass Connector, 3/8” ID x ½” NPT
Brass Connector. 3/8” Tubing x ¼’ NPT
Elbow Connector, 3/8” Tube x ½” NPT
Elbow Connector, 3/8” Tube x ¼” NPT
Drain Cup, PVC
Street Elbow, ½”
Nipple, ¼” x Close
Elbow, 1¼”
Elbow, 1”
Elbow, ½
Elbow, ¼”
Elbow, ¾”
Flex Line, ½”
Gauge, Pressure, Air
Gauge, Pressure, Water
Nameplate, Single Interlock
Nipple, 1¼” x 3”
Nipple, 1¼” x 4”
Nipple, 1¼” x Close
Nipple, 1” x 3”
Nipple, 1” x Close
Nipple, ½” x 1½”
Nipple, ½” x 4½”
Nipple, ½” x 2”
Nipple, ½” x 3”
Nipple, ½” x Close
Nipple, ¼” x 1½”
Nipple, ¼” x 4”
Nipple, ¾” x 2”
Nipple, ¾” x 3”
Pad-Adhesive
Cross ½”
Plug, ½”
Item
Part Number
No.
46
98614403
47
98614401
48
98727607
49
96606630
50
96606607
51
98761649
52
98761651
53
96606612
54
96606601
55
89141112
56
98815204
57
98815200
58
98840160
59
98840106
60
98840101
61
78653100
62
98840117
63
98840145
64
98840181
65
98840187
66
98840171
67
----68
96686722
69
96686756
70
98840172
No.
Req’d
1
1
1
1
1
1
2
1
-1
1
1
1
1
1
2
1
1
1
2
1
1
1
1
1
1
1
1
2
1
1
1
1
2
1
7
1
4
2
4
3
1
1
1
1
1
1
Description
Plug, ¼”
Plug, ¾”
Strainer, ¼”
Tee, 1¼” x 1¼” x 1”
Tee, ½” x ½” x ¼”
Tee, ½” x ¼” x ½
Tee, ½”
Tee, ¾” x ½”x ½”
Tee, ¾”
Tie, Retaining
Union, ½”, O-Ring Seal
Union, ½”
3-Way Valve, ¼”
Valve, Angle, 1¼”
Valve, Angle, ¼”
Valve, Ball Drip, ½”
Valve, Ball, ¼”NPTF x ¼” NPTM
Valve, Check, 1”
Valve, Check, ½”
Valve, Check, ¼” NPTF x ¼” NPTM
Valve, Globe, ½”
----Tubing, Copper, 3/8” O.D. x 2 ft.
Tubing, Plastic, 3/8” I.D. x 6 ft.
2-Way Valve, ¼”
System Operation
No.
Req’d
3
2
1
1
2
1
1
1
1
9
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
To fully operate a Single Interlock Preaction System, two
independent events must coexist before water flow will occur. One electrical detector (two detectors in a cross-zoned
system) must activate and a sprinkler head must open. Operation of either one of these items will only cause an alarm
to annunciate, but will not cause water to discharge from the
sprinkler system piping.
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 the 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.
When a fire is detected, the energized solenoid valve vents
the push rod chamber to atmosphere through the chamber’s
outlet. Since the pressure cannot be replenished through
the inlet restriction as rapidly as it is vented, the push rod
chamber pressure falls instantaneously. When the push rod
chamber pressure approaches approximately one-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 system piping. Water also flows through the Deluge
Valve alarm outlet to the alarm devices.
5.
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. 3) is also
included in the Reliable Single Interlock Preaction System
trim set. 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. 3, 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.
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 175 psi (12,1 bar).
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.
Pressurizing Line Connection
System Design Considerations
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-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 fire pump settings,
underground construction work, or an improper venting of
trapped air in the water supply piping.
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 Single Interlock Preaction System must be
UL or ULC Listed or FM Approved, as applicable.
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 at a minimum temperature of
40°F (4°C). 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 700,
“ Special Hazards & Special Systems.”
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 main water
supply control valve. This can be accomplished by:
a. 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 (see Fig. 2); or
b. 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.
6.
System Air Pressure Requirements
System Electrical Requirements
A Reliable Model B Air Compressor Panel or Model C
Pressure Maintenance Device is used to maintain the system pneumatic pressure at approximately 35 oz/in2 (2.2 psi
or 0,2 bar). The air compressor panel contains an integral
low air pressure warning light, while the pressure maintenance device requires a separate annunciating device to be
connected to the low pressure switch. The switch is factory set to transfer contacts when the supervisory pressure
falls below approximately 11 oz/in2 (0.7 psi or 0,05 bar). The
pressure maintenance device is a supervisory pneumatic
supply for use where a clean, dependable and continuous
compressed air or dry nitrogen gas source is available in the
40 to 100 psi (2,8 to 6,9 bar) pressure range.
In some circumstances, such as when dry sprinklers are
being used in a preaction system, it may be desirable to supervise the preaction system at air pressures higher than 2
psi. For such cases, Reliable recommends the use of an A-2
air maintenance device with either a System Sensor EPS-10
or EPS-40 low air pressure switch. Supervising air pressure
may be between 7psi and 20 psi, depending on which low
air pressure switch is being utilized.
All releasing, alarm and detection devices in the Single Interlock Preaction System are supervised by the Potter PFC4410-RC Releasing Control Panel. Connect these devices
as shown in Fig. 4. The Releasing/Control Panel should
be set to use Program #6 (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.
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.
Batteries that provide ninety hours of standby power are
required for Factory Mutual Approved systems.
For additional information and detailed wiring diagrams,
refer to Reliable Bulletin 700, “ Special Hazards & Special
Systems”. These diagrams describe single area, single area
cross-zoned, and two area systems.
Caution: Repairs or disassembly of the solenoid valve
should only be done by a trained technician. An improperly
repaired or partially assembled solenoid valve could result
in failure of the valve to operate.
Fig. 3
7.
8.
Fig. 4
Single Interlock Preaction System– Electric
Release Trim Engineering Specifications
Supervisory Air Supply Options
Owner’s Air supply
Single interlock preaction system air pressure shall utilize
low supervisory air pressure. Air supply shall be provided
by an owner supplied air system in conjunction with a [cULus Listed] [FM Approved] automatic low air pressure maintenance device. The pressure maintenance device trim assembly shall consist of a field adjustable, low pressure line
regulator, air filter assembly, low air pressure switch, pressure gauge and check valve. Regulator shall be capable
of receiving 40 to 100 psi (2,8 to 6,9 bar) inlet pressure and
provide approximately 2 psi (0,14 bar) outlet supervisory
pressure. The pressure switch shall have a SPDT contact
rated at 15 amp @ 125/250 VAC, and 10 amp @ 12 VDC.
Pressure switch shall transfer contacts when the supervisory
pressure falls below approximately 0.5 psi (0,03 bar).
Low Pressure Air Compressor Panel
Preaction system supervisory air supply shall be a [cULus Listed] [FM Approved] self-contained, low pressure
air compressor panel containing a 1/16 hp air compressor,
DPDT relay for remote supervisory annunciation, low pressure warning light, pressure gauge, and low pressure alarm
switch. Pressure switch shall control the compressor, providing a maximum operating supervisory pressure of 2 psi
(0,14 bar), and a low-pressure supervisory alarm at approximately 0.5 psi (0,03 bar). Power requirements shall be 120
VAC/60 Hz.
General Description
Preaction system shall be a Single Interlock Preaction
System utilizing a 2” (50mm), 2½” (65mm), 3” (80mm) and
76mm Reliable Model DDX Deluge Valve Deluge valve shall
be a [2” (50mm)][2½” (65mm)][3” (80mm)][76mm] [cULus
Listed][Factory Mutual Approved] hydraulically operated,
differential latching clapper-type valve. Deluge valve construction shall be of lightweight, ductile-iron construction
with “screw in” stainless steel seat and clapper assembly.
Stainless steel 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. Deluge valve shall be activated by [hydraulic wetpilot][low pressure, pneumatic dry-pilot][electric] actuation
trim. 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” (50mm), 2½” (65mm), 3” (80mm) or 76mm]
grooved inlet and grooved outlet,per ANSI/AWWA C606.
Deluge valve shall have a rated working pressure of 250 psi
(17,2 bar) and shall be factory hydrostatic tested at 500 psi
(34,5 bar). Deluge valve to be [2” (50mm)][2½” (65mm)][3”
(80mm)][76mm] Reliable Model DDX Deluge Valve (Bulletin
513).
Preaction electric release trim shall consist of galvanized
and brass components specifically listed/approved with
the deluge valve. Deluge valve releasing device shall be an
electrical two-way, normally closed, pilot operated solenoid
valve [cULus Listed] [FMApproved] 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)] [250 psi (17,2 bar)] and maximum ambient temperature rating of 150°F (66°C). Power consumption of integrated
coil shall be limited to [10watts (175 psi (12,1bar)) Rated]
[22watts (250 psi (17,2 bar)) Rated] and require 24 VDC
from a releasing/control panel listed for such service. Solenoid valve shall be a Skinner ½” normally-closed solenoid
valve, [Model 73218BN4UNLVNOC111C2 (175 psi (12,1
bar)) Rated]. [Model 73212BN4TNLVNOC322C2 (250 PSI
(17,2 bar)) Rated].
Optional System Accessories
System Control Valve
Preaction system control valve shall be a slow close, [cULus Listed] [FM Approved] indicating butterfly type valve
with a pre-wired supervisory tamper switch assembly. The
valve shall be rated for a working pressure of [175 psi (12,1
bar)] [250 psi (17,2 bar)]. System control valve shall be a
[2” (50mm)] Nibco KG-505-W-8 Ball Valve, [2½” (65mm)] [3”
(80mm)] 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. The releasing/control panel
shall be capable of providing any of the following desired
modes of operation: single hazard, two zone; single hazard,
cross-zoned; dual hazard, combined release; and dual hazard, split release (two area). 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
9.
ampere-hour 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 120
VAC / 60Hz circuit.
Waterflow 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] [FM Approved] and of the bellows activated type enclosed in a weatherproof, 4x, NEMA 4-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 ½” NPT
male pressure connection. Waterflow alarm pressure switch
shall be System Sensor EPS10-2.
•
2” (50mm)
Groove
Diameter
3” (80mm)
3.500” (89mm) 3.344” (85mm)
76mm
3.000” (76mm) 2.845” (72mm)
Red
Valve Size
Weight
2” (50mm)
2.5” (65mm)
3” (80mm)
76mm
34lb. (15 kg)
Valve Size
Equivalent Length
2” (50mm)
4.4’ (1.3m)
2.5” (65mm)
6.0’ (1.8m)
3” (80mm)
12.6’ (3.8m)
76mm
7.7’ (2.3m)
Resetting the Single Interlock Preaction
System
Refer to Figs. 2, 5, and 6.
1. Close the main valve controlling water supply (Fig. 6)
to the Deluge Valve and close off the air supply to the
sprinkler system.
2. Close the pushrod chamber supply valve, valve A
(Fig. 6).
3. Open the main drain valve, valve B (Fig. 6), 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. 6).
Note: The above steps accomplish the relieving
of pressure in the pushrod chamber of the Deluge
Valve.
5. With valve G (Fig. 6) open, push in the plunger of ball
drip valve, valve E (Fig. 6), to force the ball from its
seat, and drain any water in the alarm line.
Outlet
Groove
Face
Width to Groove
11 32
/ “
(9mm)
76mm
Reliable Single Interlock 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.
2.375” (60mm) 2.250” (57mm)
2.5” (65mm) 2.875” (73mm) 2.720” (69mm)
Black
Maintenance
Reliable 512/513
Reliable 506
Reliable 718
Reliable 612/613
Reliable 252
Reliable 252
Potter #5403550
Reliable 700
Reliable 722
Reliable 700
System Sensor
A05-0176
Groove Dimensions
Outlet
Diameter
2” (50mm)
2.5” (65mm)
3” (80mm)
7. Installation position: Vertical
1. Rated working pressure:
Valve & System - 250 psi (17,2 bar)
2. Factory tested to a hydrostatic pressure of 500 psi
(34,5 bar). (Valve only)
3. End and trim connections:
• ANSI/AWWA C606 grooved inlet and outlet
• Threaded openings Per ANSI B 2.1
Valve
Size
Color
6. Friction loss (Expressed in equivalent length of
Schedule 40 pipe, based on Hazen & Williams formula with C=120 and a flow velocity of 15ft/sec (4.6
m/sec)):
Reliable Single Interlock Preaction Systems, with associated trim, sizes 2” (50mm), 2½” (65mm), 3” (80mm) and
76mm 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). 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)
Solenoid Valve
Mechanical Sprinkler Alarm
Pressure Maintenance Device
Air Compressor Panel (Models B & C)
Releasing/Control Panel
Electric Emergency Station
Thermal/Smoke Detectors
Fire Alarm Devices
Waterflow Pressure Alarm Switch
Valve Size
4. Face to face dimensions:
• 2” (50mm) — 12½” (318mm)
• 2.5” (65mm) — 12½” (318mm)
• 3” (80mm) — 12½” (318mm)
• 76mm - 12½” (318mm)
5. Shipping weight:
Technical Data
Valve Description
Valve Exterior Color:
5 8
/”
(16mm)
10.
6. With the Model B Manual Emergency Station, valve D
(Fig. 6), open, push in and rotate the Deluge Valve’s
external reset knob (#14, Fig. 5) clockwise until you
hear a distinct clicking noise, indicating that the clapper has closed. Note: The reset knob can be rotated
only after pressure in the pushrod chamber is reduced to atmospheric conditions (0 psig).
7. Inspect and replace any portion of the sprinkler system subjected to fire conditions.
8. Open valve A (Fig. 6) and allow water to fill the Deluge
Valve’s pushrod chamber. Close valve D (Fig. 6).
9. Bleed any 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. Refer to Bulletin 700, “ Special Hazards &
Special Systems” for details.
Note: All detection devices must be reset before the
releasing/control panel can be reset.
10. Close valve G (Fig. 6). Open the valve to restore air
pressure in the sprinkler system.
11. Open valve G (Fig. 6). Open slightly the main valve
controlling water supply (Fig. 6) to the Model DDX
Deluge Valve, closing drain valve B (Fig. 6) when
water flows. Observe if water leaks through the ball
drip valve, valve E (Fig. 6), into the drip cup, J (Fig.
6). If no leak occurs, the Deluge Valve’s clapper is
sealed. Open slowly, and verify that the main valve
controlling water supply is fully opened and properly
monitored.
12. Verify that valve A (Fig. 6) and valve G (Fig. 6) are
open.
13. Secure the handle of the Model B Manual Emergency Station, valve D (Fig. 6), in the OFF position with a
nylon tie (#56, Fig. 2).
6. Releasing device — check outlet of the releasing
device (i.e., solenoid valve or the Model B Manual
Emergency Station, valve D (Fig. 6)) 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.
7. Testing alarms — make sure valve G (Fig. 6) is open.
Open valve F (Fig. 6) 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. 6) until all of the
water has drained from the alarm line.
8. Operational test — Open the Model B Manual Emergency Station, valve D (Fig. 6), or operate by electrical actuation (refer to Bulletin 700, “Special Hazards
& Special Systems” for details). Note: An operational
test will cause the Deluge Valve to open and flow water into the sprinkler system.
9. Secure Model B Manual Emergency Station, valve D
(Fig. 6), in the OFF position with a nylon tie (#55, Fig.
2) after the Deluge Valve is reset.
Testing the Model DDX Deluge Valve
Without Flowing Water
Refer to Fig. 6
1. Close the valve controlling water supply to Deluge
Valve and open the main drain valve B.
2. Verify that valve A is open, allowing water to enter the
push rod chamber.
3. Operate detection system – energize the solenoid
valve by operating a detector (refer to Bulletin 700,
“Special Hazards & Special Systems” for details).
4. Operation of the detection system will 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 the
Single Interlock Preaction System” section of this bulletin for resetting the Deluge Valve.
Inspection and Testing
Refer to Figs. 2, 5, and 6.
1. Water supply — be sure the valve(s) controlling water supply to the Deluge Valve are opened fully and
properly monitored.
2. Alarm line — be sure that valve G (Fig. 6) is opened
and remains in this position.
3. Other trimming valves — check that valve A (Fig. 6)
is open as well as all of the pressure gauge’s ¼” 3way valves. Valves D, F, and H (Fig. 6) should be
closed.
4. Ball drip valve E (Fig. 6) — make sure valve G (Fig.
6) is open. Push in on the plunger to be sure the ball
check is off its seat. If no water appears, the Deluge
Valve’s water seat is tight. Inspect the bleed hole
(see Fig. 5) on the underside of the push rod chamber for leakage.
5. System pneumatic pressure — check that system
air pressure is approximately 35 oz/in2 (2.2 psi or 0,2
bar). Check the pressure maintenance device for
leakage and proper pressure.
Draining Excess/Condensate Water From
System
Refer to Fig. 6
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 thereby
causing an undesirable activation of a trouble-annunciating 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.
11.
12.
Fig. 5
Models DDX 2” (50mm), 2½” (65mm) 3” (80mm) & 76mm Deluge Valve Parts List
Part Number
Item
No.
2” Valve
21/2” Valve
3” Valve
76mm
1
91006011
91006012
91006013
91006023
Body, Machined
1
2
94617001
94617002
94617003
94617004
Part Description
No.
Req’d
Plate, Size
1
3
92126066
Cover, Pushrod
1
4
91106123
Screw, Hex Cap, ½-13 x 1-1/4”, ZN PLTD, Grade A
6
5
91306013
Mounting Ring, Machined
1
6
91916003
Clapper, Machined
1
7
92116063
Cover, Access, Machined
1
8
93416003
Seal Assembly
1
9
93706003
Gasket, Access Cover (not shown)
1
10
93722000
Bumpstop Assembly
1
11
93916006
Pushrod, Guide
1
12
93916066
Shaft, Reset
1
13
94106066
Housing, Reset
1
14
94356006
Knob, Reset
1
15
94506003
Lever
1
16
94617000
Adhesive, Backing Pad (not shown)
1
17
95106006
Piston, Machined
1
18
95276006
Diaphragm
1
19
95306268
Clip, Retaining, 3/8” Shaft
4
20
95406007
O-Ring, (114)
1
21
95406024
O-Ring, (912)
2
22
95406407
O-Ring, (014)
1
23
95406410
O-Ring, (150)
1
24
95406411
O-Ring, (147)
1
25
95506003
Pushrod
1
26
95606114
Screw, Socket Head, Ø ¼”-20 x 5/8”
6
27
95606127
Screw, Ø 3/8”-16 x ¾”, Socket Cap, Flat Head
1
28
95606133
Screw, Cap, #6-32 x ½”, SS
1
29
96016003
Seat Machined
1
30
96206003
Pin, Hinge
1
31
96216003
Pin, Lever
1
32
96310003
Spacer, Clapper Pin
2
33
96406003
Spring, Lever
1
34
96406906
Spring, DDX
2
35
96906112
Washer, Lock, #6, SS
1
36
94206406
Inlet, Orifice
1
37
94616921
Label, Caution Knob (not shown)
1
38
91556922
Ball Chain, 1/8” (not shown)
6
39
91556923
Clamping Link, Ball Chain (not shown)
40
85000050
Grease, GPL-201 (not shown)
41
95006414
Striker, Lever/Clapper
1
42
95606140
Screw, Socket Head ¼-20 x 3/8”, SS
2
13.
1
A/R
Fig. 6
14.
Maintenance Procedures - Model DDX
Deluge Valve
At the rear of the valve, disconnect the water column drain trim section starting with the
elbow connector (#16, Fig. 2). Then remove
the ¼” angle valve (#61, Fig. 2), followed by
the ¾” x ¼” reducing bushing (#7, Fig.2). Remove the retaining ring (handhold cover side)
from the clapper hinge pin (#30, Fig. 5) and
push this pin through the water column drain
line and remove the clapper subassembly.
Replace the seal sub-assembly as described
previously. Inspect the clapper (#6, Fig. 5) visually before reinstalling. Reinstall in the reverse order making sure the clapper spacers
are in their proper position. If the seat (#29,
Fig. 5) is damaged or it is suspected that the
leakage is through the lower O-ring (#24, Fig.
5), the seat-clapper subassembly is easily removed as a unit as follows:
Using Reliable P/N 6881603000 Seat Wrench,
remove the seat by unscrewing. This will loosen the seat-clapper-mounting ring subassembly. Reach into the valve and grasp the seatclapper subassembly and remove it from the
valve. Visually examine all components of
the seat-clapper-mounting ring sub-assembly
replacing any component that appears damaged. New O-rings (#23 & #24, Fig. 5) should
always be used for reassembly.
Reassembly:
Clean the bore of the valve body. Lubricate
the bore with O-ring grease. Lubricate and
install the O-rings (#23 & #24, Fig. 5) onto the
seat. Insert the seat-clapper-mounting ring
sub-assembly into the handhold opening of
the Deluge Valve. Align the mounting ring so
that the Lever (#15, Fig. 5) is near the pushrod
(#25, Fig. 5) and the mounting ring (#5, Fig.
5) “ears” are between the tabs of the valve
body (#1, Fig. 5).Start to tread the seat (#29,
Fig. 5) into the body by hand, then tighten
until the seat (#29, Fig. 5) with seat wrench
6881603000 until it bottoms out on the mounting ring (#5, Fig. 5). 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. 5)
lines up with the push rod (#25, Fig. 5). Loosen and reassemble if necessary. Reassemble
the hand hold cover (#7, Fig. 5) and set up
the Model DDX Deluge Valve as per the section “Resetting Model DDX Deluge Valve 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. 5). If there is air or water
leakage coming out of this hole, do the following:
Refer to Figs. 2, 5, & 6.
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. 6).
a. Water leakage due to a water column above
the Deluge Valve’s clapper:
This condition can be caused by leakage past the
system side of the Model DDX Deluge Valve’s seal
faceplate subassembly (#8, Fig. 5). Be sure that
this surface is free of any type of debris. To eliminate leakage due to a water column, 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. 6):
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 faceplate subassembly (#8, Fig. 5), seat (#29, Fig. 5),or the upper seat O-ring (#23, Fig. 5). 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 faceplate sub-assembly (#8, Fig. 5),
seat (#29, Fig. 5), or lower seat O-ring (#24, Fig.
5). 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 1-1/4”
main drain valve B (Fig. 6). Open the water
column drain valve H (Fig. 6). Close the push
rod chamber supply valve A (Fig. 6) and open
the Model B Manual Emergency Station D
(Fig. 6).
B. Remove the Deluge Valve’s front (handhold)
cover (#7, Fig. 5) and inspect the seat (#29,
Fig. 5), clapper (#6, Fig. 5),and seal faceplate
subassembly (#8, Fig. 5) for damage.
If inspection indicates damage to the seal
faceplate sub-assembly (#8, Fig. 5), replace
as follows:
Remove the bump stop nut subassembly
(#10, Fig. 5) and remove the seal assembly
(#8, Fig. 5). Install a new seal assembly (#8,
Fig. 5) and thread the bump stop nut (#10,
Fig. 5) onto the threaded stud of the seal subassembly (#8, Fig. 5) and tighten finger tight
plus ¼ to ½ turn.
If inspection indicates damage to the clapper
(#6, Fig. 8) only, then the clapper sub-assembly can be removed as follows:
15.
a. Shut down the valve controlling water supply to
the Deluge Valve. Relieve the inlet pressure by
opening the 1¼” drain valve B (Fig. 6). Close the
valve A (Fig. 6) that supplies water to the push rod
chamber, and open the Model B Manual Emergency Station, valve D (Fig. 6).
b. Remove the trim at the unions nearest to the push
rod chamber cover (#3, Fig. 5).
c. Take the push rod chamber cover (#3, Fig. 5) off
by removing the six retaining screws (#26, Fig.
5).
CONDITION ONE (Water coming out of the
bleed hole):
Water coming out of the bleed hole is caused by a
leaking diaphragm (#18, Fig. 5). Visually inspect
the push rod chamber cover (#3, Fig. 5) and piston (#17, Fig. 5) 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. 5)
with an installation torque of 15 foot-pounds. Set
up the Model DDX Deluge Valve as per the section “Resetting the Single Interlock Preaction System.”
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. 5). Remove the piston-push rod
subassembly, push rod spring (#34, Fig. 5), and
push rod guide (#11, Fig. 5). 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, Fig. 5). The correct installation
torque for the push rod guide is 35 inch-pounds.
CAUTION: Do not over tighten the push rod
guide. Reassemble the components that were initially removed. Re-install the diaphragm (#18, Fig.
5) 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. 5)
with an installation torque of 15 foot-pounds. Set
up the Model DDX Deluge Valve as per the section “Resetting the Single Interlock Preaction System”.
16.
Ordering Information
Specify
• Valve Model & Size — 2” (50mm) Model DDX Deluge Valve (P/N 6103022000), 2½” (65mm) Model DDX
Deluge Valve (P/N 6103022500), 3” (80mm) Model DDX Deluge Valve (P/N 6103030000), 76mm Model DDX
Deluge Valve (P/N 6103027600).
• Trim — The 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.
• Solenoid valve — 175 psi (12,1 bar) or 250 psi (17,2 bar) rated.
175 psi (12,1 bar)
Rated Solenoid
Valve
250 psi (17,2 bar)
Rated Solenoid
Valve
{
{
2” (50mm)
Valve
Trim Configurations
Trim Part Numbers
2½” (65mm) 3” (80mm)
Valve
Valve
76mm
Valve
Fully Assembled to DDX Valve w/Control Valve
6505020030
6505022530
6505030030
Not Available
Fully Assembled to DDX Valve w/o Control Valve
6505020031
6505022531
6505030031
6505027631
Segmentally Assembled (DDX Valve Sold Separately)
6503002223
Individual Parts (DDX Valve Sold Separately)
6503002222
Fully Assembled to DDX Valve w/Control Valve
6505020040
6505022540
6505030040
Not Available
Fully Assembled to DDX Valve w/o Control Valve
6505020041
6505022541
6505030041
6505027641
Segmentally Assembled (DDX Valve Sold Separately)
6503002227
Individual Parts (DDX Valve Sold Separately)
6503002226
Note: For metric installations, a 1¼” NPT x R1¼, ISO 7/1 x Close Nipple (Reliable P/N 98543403) is sold Separately as
an adapter for the single drain outlet of the trims.
• Additional Equipment (Refer to Fig. 7)
Item
No.
1
Component Part
Mfgr.
Water Supply Control Valve
Select
Tamper Switch (Optional) for OS&Y Valve
(Optional) for Butterfly Valve
Description
Technical Bulletin
Ball Valve, 2” (50mm)
-
Butterfly Valve 2½” (65mm), 3” (80mm), 76mm
-
Model OS&Y2
System Sensor A05-0196
D
Model P1BV2
System Sensor A05-0197
Reliable 512 / 513
Reliable 736
2
Deluge Valve
B
Model DDX, 2” (50mm), 2½” (65mm), 3” (80mm),
76mm
3
Single Interlock Trim Kit
B
Refer to Parts List in this Bulletin
4
Waterflow Alarm Pressure Switch
D
5
Mechanical Alarm (Optional)
B
Model EPS10-2 (DPDT, UL, FM)
Model EPSA10-2 (DPDT, ULC)
Model C
Releasing / Control Panel
Reliable 612 / 613
Model PFC-4410-RC
12 VDC, 12 AMP Hours (90 Hours Backup) FM
Batteries
6
System Sensor A05-0176
12 VDC, 7 AMP Hours (60 Hours Backup)
C
CA2Z (Class A Wiring Module for Initiating Circuits)
CAM (Class A Wiring Module for Indicating Circuits)
Optional Accessories
Potter #5403550
Reliable 700
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
7
Alarm Annunciator
A
Model MA24-D 24 VDC / Polarized Sounder
Reliable 700
Model MASS24LO 24 VDC / Polarized Sounder
Strobe
8
Trouble Annunciator
A
9
Manual Emergency Station (Elec.)
A
10
Detection
Various
11
Sprinklers
B
12
Supervisory Air Pressure Supply
B
System Equipment Manufacturers
(A) Notifier
(B) The Reliable Automatic Sprinkler Co., Inc.
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
Reliable 700
Smoke, Heat Detectors, etc.
Reliable 722
Closed Type
Reliable 110, 117, 131,
136, etc.
Model B Air Compressor Panel
Model C Pressure Maintenance Device
(C) Potter Electric Signal Company
(D) System Sensor
17.
Reliable 700
Reliable 252
18.
Fig. 7
Installation Dimensions in Inches (mm)
VALVE
A
B
C
*D
E
F
G
H
J
K
L
M
N
P
Q
R
2” (50mm)
2½” (65mm)
3” (80mm)
& 76mm
73/4”
(197)
61/4”
(159)
8
(203)
121/2”
(318)
181/2”
(470)
261/4”
(667)
51/2”
(140)
91/4”
(235)
3½
(89)
51/4”
(134)
93/4”
(248)
21/4”
(57)
33/4”
(95)
53/4”
(146)
81/4”
(210)
31/4”
(83)
* Total take out dimension for Fully Assembled to DDX Valve w/Control Valve Configurations:
2” - 207/32, 21/2” & 3” - 1727/32””, 76 mm - N/A.
19.
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 OT SERVICE MAY ELIMINATE THE FIRE PROTECTION OF THAT SYSTEM.
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 operated at least monthly. The valve must open and close freely. When open, the water flow
must be clear and clean at the proper flow rate. When closed, a total water shut-off must be observed.
3. The valve must be inspected at least monthly for cracks, corrosion, leakage, etc., and cleaned, repaired, or replaced, or replaced as necessary.
4. At least annually, the valve diaphragms and seats must be inspected and if necessary, repaired or replaced.
WARNING: CLOSE SYSTEM CONTROL VALVE, TURN OFF POWER SUPPLY, AND DEPRESSURIZE VALVE BEFORE DISASSEMBLING VALVE. IT IS NOT NECESSARY TO REMOVE
THE VALVE FROM THE PIPE LINE TO MAKE INSPECTIONS.
5. When lubricating valve components, use high grade silicone grease (Dow Corning® 111 Compound Lubricant or
equal).
6. When reassembling, tighten parts to torque values indicated in the manufacturer’s maintenance instructions
(packed with valve).
7. After maintenance is completed, operate the valve a few times to be sure of proper operation. A metallic “click”
signifies the solenoid is operating.
8. It is recommended that the valve be replace at seven-year intervals. Shorter intervals may be required if the valve
is subject to corrosive water supplies or atmospheres.
9. All service must be performed by qualified personnel. Upon completion of inspections or replacement of the
valve, the entire system must be checked for proper operation. See appropriate system description and testing
instructions for additional information.
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.
Productsmanufactured 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
The Reliable Automatic Sprinkler Co., Inc.
(800) 431-1588
Sales Offices
(800) 848-6051
Sales Fax
(914) 829-2042
Corporate Offices
www.reliablesprinkler.com Internet Address
Recycled
Paper
Revision lines indicate updated or new data.
EG. Printed in U.S.A 08/10
P/N 9999970332