Instruction Manual

April 2014

T208 Series Tank Blanketing Vapor

Recovery Regulators

T208 Series

Table of Contents

Introduction ..................................................................1

Specifications ..............................................................2

Principle of Operation ..................................................2

Installation ...................................................................4

Startup, Adjustment and Shutdown .............................5

Maintenance ................................................................6

Parts Ordering ........................................................... 11

Parts List.................................................................... 11

Figure 1. Type T208 Tank Blanketing Vapor Recover Regulator

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WaRning

Failure to follow these instructions or to properly install and maintain this equipment could result in an explosion, fire and/or chemical contamination causing property damage and personal injury or death.

Fisher ® Vapor Recovery regulators must be installed, operated, and maintained in accordance with federal, state and local codes, rules and regulations, and Emerson Process Management

Regulator Technologies inc. (Regulator

Technologies) instructions.

if the regulator discharges process fluid or a leak develops in the system, service to the unit may be required.

Failure to correct trouble could result in a hazardous condition.

Call a qualified service person to service the unit. installation, operation and maintenance procedures performed by unqualified person may result in improper adjustment and unsafe operation. Either condition may result in equipment damage or personal injury.

Only a qualified person shall install or service the T208 Series vapor recovery regulator.

introduction

Scope of the Manual

This Instruction Manual provides instructions for installation, startup, maintenance and parts ordering information for the T208 Series vapor recovery regulators. Instructions and parts list for other equipment used with these regulators are found in separate manuals.

logo here www.fisherregulators.com

2

T208 Series

Specifications

The Specifications section on this page provides the ratings and other specifications for the T208 Series. Factory specification such as type, maximum inlet pressure, maximum temperature, maximum outlet pressure, spring range and orifice size are stamped on the nameplate fastened on the regulator at the factory.

Product Configurations

Type T208: Tank Blanketing Vapor Recovery regulator with control pressure range of

2 inches w.c. to 7 psig / 5 mbar to 0.48 bar in six different spring ranges and has internal pressure registration requiring no control line.

Type T208M: Similar to Type T208 but has a blocked throat and a control line connection for external pressure registration.

Body Sizes and End Connection Styles

See Table 1

Maximum allowable inlet (Casing) Pressure (1)

See Table 1

Maximum Outlet Pressure

35 psig / 2.4 bar

(1)

Maximum Emergency inlet Pressure to avoid internal Parts Damage (1)

With nitrile (nBR) or Fluorocarbon (FKM)

diaphragm: 35 psig / 2.4 bar

With Fluorinated Ethylene Propylene (FEP)

diaphragm: 10 psig / 0.69 bar

Control Pressure Ranges (1)

See Table 2

Shutoff Classification per ANSI/FCI 70-3-2004

Class VI (Soft Seat)

Pressure Registration

Type T208: Internal

Type T208M: External

Material Temperature Capabilities (1)(2)

Elastomer Parts

Nitrile (NBR): -40 to 180°F / -40 to 82°C

Fluorinated Ethylene Propylene (FEP):

-20 to 180°F / -29 to 82°C

Fluorocarbon (FKM): 40 to 300°F / 4 to 149°C

Ethylene Propylene Diene (EPDM):

-20 to 225°F / -29 to 107°C

Perfluoroelastomer (FFKM): 0 to 300°F /

-18 to 149°C

Body Materials

Gray Cast Iron: -20 to 300°F / -29 to 149°C

WCC Carbon Steel: -20 to 300°F / -29 to 149°C

CF8M/CF3M Stainless Steel:

-40 to 300°F / -40 to 149°C

Spring Case Vent Connection

1/4 NPT

Diaphragm Case Control Line Connection

(Type T208M)

1/2 NPT approximate Weight

17.7 pounds / 8 kg

1. The pressure/temperature limits in this Instruction Manual and any applicable standard or code limitation should not be exceeded.

2. See Table 4 for operating temperature ranges for available trim combinations.

Product Description

The T208 Series vapor recovery regulators are directoperated. They are used to sense an increase in vessel pressure and vent excessive internal vessel pressure to an appropriate vapor recovery disposal or reclamation system. They may also be used as backpressure regulators or relief valves.

Type T208—The Type T208 has internal registration requiring no control line.

Type T208M—The Type T208M has a blocked throat and a control line connection for external registration.

Principle of Operation

The T208 Series vapor recovery regulators are used to maintain a constant inlet (blanket) pressure with the outlet flowing to a system whose pressure is lower than that at the inlet. When vessel pressure increases above the setpoint of the regulator due to pumping in or thermal heating, the force of the control spring is overcome by pressure acting on the diaphragm. This moves the disk away from the orifice, allowing gas to flow from the vessel to the vapor recovery system. As vessel pressure is reduced, the force of the back disk spring causes the disk to move toward the orifice, decreasing the flow of gas out of the vessel. As vessel pressure drops below the setpoint of the regulator, the disk will seat against the orifice, shutting off the gas flow.

DISK

ORIFICE

STEM

LEVER

T208 Series

PIPE PLUG

DIAPHRAGM

BACK DISK SPRING

CONTROL SPRING

ERSA02737

INLET PRESSURE

OUTLET PRESSURE

ATMOSPHERIC PRESSURE

TYPE T208 WITH INTERNAL REGISTRATION

Figure 2. Type T208 with Internal Registration Operational Schematics

TYPE Y602-1 VENT

DISK

ORIFICE

STEM SEAL O-RING

LEVER

CONTROL LINE CONNECTION

DIAPHRAGM

BACK DISK SPRING

THROAT SEAL

CONTROL SPRING

ERSA02738

ERSA02737

INLET PRESSURE

INLET PRESSURE

ATMOSPHERIC PRESSURE

TYPE T208M WITH EXTERNAL REGISTRATION

TYPE T208 WITH INTERNAL REGISTRATION

Figure 3. Type T208M with External Registration Operational Schematics

TYPE Y602-1 VENT

3

ERSA02738

INLET PRESSURE

OUTLET PRESSURE

ATMOSPHERIC PRESSURE

TYPE T208M WITH EXTERNAL REGISTRATION

4

T208 Series

Table 1. Body Sizes, End Connection Styles and Maximum Allowable Inlet (Casing) Pressures inch

BODy SizE

Dn

BODy MaTERiaL

EnD COnnECTiOn

STyLES (1)

3/4 or 1 20 or 25

Gray cast iron

WCC Carbon steel

CF8M/CF3M Stainless steel (2)

NPT

NPT, CL150 RF, CL300 RF, or PN 16/25/40 RF

1. All flanges are welded. Weld-on flange dimension is 14 inches / 356 mm face-to-face.

2. Pipe nipples and flanges are 316 Stainless steel for flanged body assemblies.

MaxiMuM aLLOWaBLE inLET (CaSing) PRESSuRE psig bar

35 2.4

75 5.2

Table 2. Control Pressure Ranges and Spring Information

COnTROL PRESSuRE RangE inch w.c.

mbar

2 to 7 (1)(2) 5 to 17 (1)(2)

3 to 13 (1)(2)

10 to 26

0.9 to 2.5 psig

7 to 32 (1)(2)

25 to 65

62 to 172

SPRing PaRT nuMBER

1B653827052

1B653927022

1B537027052

1B537127022

SPRing COLOR

Red

Unpainted

Yellow

Green

1.3 to 4.5 psig

3.8 to 7 psig

90 to 310

0.26 to 0.48 bar

1B537227022

1B537327052

Light blue

Black

1. To achieve the published control pressure range, the spring case must be installed pointing down.

2. Do not use Fluorocarbon (FKM) diaphragm with this spring at diaphragm temperatures lower than 60°F / 16°C.

SPRing WiRE DiaMETER inch mm

0.085

2.2

0.105

0.114

0.156

0.187

0.218

2.7

2.9

4.0

4.8

5.5

SPRing FREE LEngTh inch mm

3.63

92.2

3.75

4.31

4.06

3.94

3.98

95.3

109

103

100

101

installation

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Personal injury, property damage, equipment damage or leakage due to escaping gas or bursting of pressurecontaining parts may result if this regulator is overpressured or installed where service conditions could exceed the limits given in the Specifications section (page 2) or where conditions exceed any ratings of the adjacent piping or piping connections.

To avoid such injury or damage, provide pressure-relieving or pressure-limiting devices (as required by the appropriate code, regulation or standard) to prevent service conditions from exceeding limits.

additionally, physical damage to the regulator could cause personal injury or property damage due to escaping gas.

To avoid such injury or damage, install the regulator in a safe location.

1. Only personnel qualified through training and experience shall install, operate and maintain a regulator. For a regulator that is shipped separately, make sure there is no damage to or debris in the regulator. Also ensure that all tubing and piping are clean and unobstructed.

2. Install the regulator using a straight run of pipe the same size or larger as the regulator body. Flow through the regulator body is indicated by the flow arrow attached to the body. If a block valve is required, install a full flow valve between the regulator and the blanketed vessel. For proper operation, the regulators should be installed with the spring case barrel pointed down. Key numbers referenced in this section are shown in Figures 4,

5 and 6.

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WaRning a regulator may vent some gas to the atmosphere. In hazardous or flammable gas service, vented gas may accumulate and cause personal injury, death or property damage due to fire or explosion.

Vent a regulator in hazardous gas service to a remote, safe location away from air intakes or any hazardous area. The vent line or stack opening must be protected against condensation or clogging.

3. To keep the vent assembly (key 26) from being plugged or the spring case (key 3) from collecting moisture, corrosive chemicals or other foreign material, point the vent down or otherwise protect it. The diaphragm casing (key 4,

Figure 6) may be rotated in order to obtain desired positioning.

T208 Series

4. To remotely vent the regulator, remove the vent assembly (key 26) and install obstruction-free tubing or piping into the 1/4 NPT vent tapping.

Provide protection on a remote vent by installing a screened vent cap into the remote end of the vent pipe. If continuous operation of the system is required during inspection or maintenance, install a three-way bypass valve around the regulator.

5. The Type T208M requires a control line. Be sure to install the control line before putting the regulator into operation. Make the control line as short and straight as possible and do not install it in a location where flow may be turbulent. Significant restrictions in the control line can prevent proper pressure registration. When using a hand valve, it should be a full flow valve, such as a full port ball valve. Install the control line sloping downward toward the tank to prevent condensation buildup and avoid low points (or traps) that could catch liquid. The sensing line must enter the tank above the liquid level at a point that senses the vapor space pressure and is free from turbulence associated with tank nozzles or vents. The control line pipe should be at least 1/2-inch / 13 mm in diameter and increase 1 pipe size for every

10 feet / 3.05 m of control line, with setpoint less than 5-inches w.c / 12 mbar.

6. Vapor recovery regulators are used to maintain a constant inlet (blanket) pressure with the outlet flowing to a system whose pressure is lower than that at the inlet. The recovery regulators are not intended to be used as an ASME certified relief device for overpressure protection on a tank. They are to be used as part of a gas blanketing system to control outflow of blanketing gas under normal conditions and collect tank vapors for the vapor disposal reclamation system. Provide alternate methods of emergency overpressure protection.

Startup, adjustment and Shutdown

note

The Specifications section and Table 1 provide the maximum pressure capabilities for each regulator construction. use pressure gauges to monitor inlet pressure and control pressure during startup.

Startup

1. Slowly open the outlet block valve, if used, to vapor recovery system and leave it fully open.

2. Slowly open the shutoff valve (for Type T208M, open the control line shutoff valve first followed by the inlet shutoff valve) between the tank and vapor recovery regulator.

3. Use gauges to monitor pressure.

adjustment

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To avoid personal injury, property damage, or equipment damage caused by bursting of pressure containing parts or explosion of accumulated gas, never adjust the control spring to maintain a control pressure higher than the upper limit of the control pressure range for that particular spring. if the desired control pressure is not within the range of the spring, install a spring of the proper range according to the

Diaphragm and Spring Case area section of the maintenance procedure.

Adjust the regulator control pressure setting to meet the requirements of the specific application. The range of allowable pressure setting is stamped on the nameplate. If a pressure setting beyond the stamped range is required, install a spring with the desired range by following the procedures for changing the spring in the Maintenance section. To adjust the pressure setting, perform the following steps

(key numbers are referenced in Figures 4, 5 and 6).

For internal flat circular adjusting screw

1. Remove the closing cap (key 22).

2. Use a 1-inch / 25 mm hex rod or flat screwdriver to turn the adjusting screw (key 35) either clockwise to increase control pressure or counterclockwise to decrease control pressure. The regulator will go into immediate operation. To ensure correct operation, always use a pressure gauge to monitor the vapor recovery pressure when making adjustments.

3. After making the adjustment, replace the closing cap gasket (key 25) and install the closing cap

(key 22).

5

6

T208 Series

For external square head adjusting screw

1. Loosen the locknut (key 20).

2. Turn the adjusting screw (key 35) either clockwise to increase outlet pressure or counterclockwise to decrease outlet pressure. The regulator will go into immediate operation. To ensure correct operation, always use a pressure gauge to monitor the vapor recovery pressure when making adjustments.

3. After making the adjustment, tighten the locknut

(key 20).

Shutdown

1. Close the nearest upstream shutoff valve.

2. Close the nearest downstream shutoff valve to vent the regulator properly.

3. Open the vent valve on both the upstream and downstream sides of the regulator. All pressure between these shutoff valves is released through the open vent valve. For a regulator with control line, close the valve in the control line and vent the diaphragm casing to the atmosphere.

Maintenance

Regulator parts are subject to normal wear and must be inspected and replaced as necessary. The frequency of inspection and replacement of parts depends upon the severity of service conditions or the requirements of local, state and federal regulations. Due to the care Regulator Technologies takes in meeting all manufacturing requirements (heat treating, dimensional tolerances, etc.), use only replacement parts manufactured or furnished by Regulator Technologies.

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To avoid personal injury, property damage or equipment damage caused by sudden release of pressure or explosion of accumulated gas, do not attempt any maintenance or disassembly without first isolating the regulator from system pressure and relieving all internal pressure from the regulator.

Regulators that have been disassembled for repair must be tested for proper operation before being returned to service. Only parts manufactured by

Regulator Technologies should be used for repairing Fisher ® regulators. Restart gas utilization equipment according to normal startup procedures.

general Maintenance

1. Visually inspect the regulator and its parts for any damage.

2. Ensure tight connections, tight seals and safe operation. If there is an evidence of leakage or unstable internal motion, a rebuild with seal replacement and relubrication may be necessary.

3. Observe the blanketing pressure.

4. Inspect the inlet pressure for the proper pressure

(stamped on the regulator nameplate).

Body area

Perform the following procedure to gain access to the disk assembly, orifice and body seal O-ring. Release all pressure from the regulator before performing the following steps. Key numbers are referenced in

Figures 4, 5 and 6.

1. To inspect and replace the disk assembly (key 13), remove the back body cap (key 43).

2. Remove the disk assembly (key 13) from the disk spacer (key 44) and replace if necessary.

3. To inspect the orifice (key 5) on Types T208 and

T208M or throat seal O-ring (key 31) and machine screw (key 34) on the Type T208M, remove the cap screws (key 2) and separate the diaphragm casing (key 4) from the body (key 1).

4. Remove and inspect the body seal O-ring (key 11) and the backup ring (key 49). Replace if damaged.

5. For a Type T208M, inspect the throat seal O-ring

(key 31) by removing the machine screw (key 34).

Replace if necessary. To install a throat seal, place the throat seal O-ring on the machine screw and thread into guide insert (key 18) to seal.

6. Inspect and replace the orifice (key 5) if necessary.

Lightly lubricate the threads of the replacement orifice with a good quality lubricant and install with 340 to 470 inch-pounds / 38.5 to 53.1 N•m of torque.

7. Place back-up ring (key 49) into the body (key 1).

Then place the body seal O-ring (key 11) into the body.

note in the following steps, be sure to install the spring case barrel pointed down as shown in Figure 1.

T208 Series

8. Place the diaphragm casing (key 4) on the body

(key 1). Secure the diaphragm casing to the body with the cap screws (key 2) using 90 to

126 inch-pounds / 10.2 to 14.2 N•m of torque.

9. Secure the disk assembly (key 13) to the disk spacer (key 44). Place the back disk spring

(key 41) and a new back body seal O-ring (key 42) on the back body cap (key 43).

10. Lightly lubricate the threads when replacing the body cap assembly. Use 340 to 470 inch-pounds /

38.5 to 53.1 N•m of torque.

Diaphragm and Spring Case area

Perform the following procedure to gain access to the spring, diaphragm, lever assembly and stem. Release all pressure from the diaphragm casing before performing the following steps. Key numbers are referenced in Figures 4, 5 and 6.

To Change the Control Spring

For internal flat circular adjusting screw

1. Remove the closing cap (key 22) and closing cap gasket (key 25). Turn the adjusting screw (key 35) counterclockwise to remove all the compression from the control spring (key 6).

2. Remove the adjusting screw (key 35) and change the control spring (key 6) to match the desired spring range.

3. Install the adjusting screw (key 35).

4. Adjust the outlet pressure to the desired control pressure setting, refer to steps 2 and 3 of

Adjustment section.

5. Change the stamped spring range on the spring case nameplate.

For external square head adjusting screw

1. Loosen the locknut (key 20) and turn the adjusting screw (key 35) counterclockwise to remove all the compression from the control spring (key 6).

2. Remove the adjusting screw (key 35), locknut

(key 20), closing cap (key 22), closing cap gasket

(key 25) and upper spring seat (key 19).

3. Take out the control spring (key 6) and replace with the desired spring.

4. Reinstall the upper spring seat (key 19), closing cap gasket (key 25), closing cap (key 22), locknut

(key 20) and adjusting screw (key 35).

5. Adjust the outlet pressure to the desired control pressure setting, refer to steps 2 and 3 of

Adjustment section.

6. Change the stamped spring range on the nameplate.

To Disassemble and Reassemble

Diaphragm Parts

Use this procedure to gain access to the control spring, diaphragm assembly, valve stem and stem

O-ring. All pressure must be released from the diaphragm case assembly before performing these steps. Key numbers are referenced in Figures 4, 5 and 6.

1. For internal flat circular adjusting screw - remove the closing cap (key 22), closing cap gasket (key 25) and adjusting screw (key 35).

For external square head adjusting screw - remove the adjusting screw (key 35), locknut

(key 20), closing cap (key 22), closing cap gasket

(key 25) and upper spring seat (key 19).

2. Remove the hex nuts (key 23) and cap screws

(key 24). Lift off the spring case (key 3) and remove the control spring (key 6).

3. Remove the diaphragm (key 10) plus attached parts by tilting them so that the pusher post

(key 8) slips off the lever assembly (key 16).

To separate the diaphragm assembly from the attached parts, unscrew the cap screw (key 38) from the pusher post. If the only maintenance is to replace the diaphragm components, skip to step 7.

4. To replace the lever assembly (key 16), remove the machine screws (key 17). To replace the stem

(key 14) or stem seal O-ring (key 30), also perform

Body Area Maintenance procedure steps 1 through 3 and pull the stem (key 14) out of the guide insert (key 18).

5. Install the stem (key 14) into the guide insert

(key 18) and perform Body Area Maintenance procedure steps 7 through 10 as necessary.

6. Install the lever assembly (key 16) into the stem

(key 14) and secure the lever assembly with the machine screws (key 17).

7. Reassemble the diaphragm parts as follows:

• Pusher post (key 8)

• Diaphragm head gasket (key 45)

• Diaphragm head (key 7)

• Diaphragm (key 10)

• Diaphragm head

• Lower spring seat (key 50)

• Washer (key 36)

Secure the parts with diaphragm plate cap screw

(key 38) using 60 to 72 inch-pounds / 6.8 to

8.1 N•m of torque.

7

T208 Series

L1 42 44 49 L1 11 L1 12

TORQUE:

14 TO 19 INCH-POUNDS / 1.6 TO 2.1 N•m

17 16 8 45 7 10

41 13 L2 5 14 18 L2 35

TORQUE:

340 TO 470 INCH-POUNDS / 38.5 TO 53.1 N•m

ERSA02737 aPPLy LuBRiCanT (L) (1)

L1 = SiLiCOnE gREaSE

:

L2 = ANTI-SEIZE COMPOUND

1. Lubricants must be selected such that they meet the temperature requirements.

38 6 36 50

TORQUE:

60 TO 72 INCH-POUNDS / 6.8 TO 8.1 N•m

Figure 4. Type T208 Section Drawing (Internal Registration)

7 9

8. Install the pusher post (key 8) and attached diaphragm parts onto the lever assembly (key 16).

9. Install the spring case (key 3) on the lower casing

(key 4) so that the vent assembly (key 26) is correctly oriented and secure them with the cap screws (key 24) and hex nuts (key 23) to finger tightness only.

10. Install the parts into the spring case (key 3).

Follow the order below:

For internal flat circular adjusting screw a. Control spring (key 6) b. Adjusting screw (key 35)

For external square head adjusting screw a. Control spring (key 6) b. Upper spring seat (key 19) c. Closing cap gasket (key 25) d. Closing cap (key 22) e. Locknut (key 20) f. Adjusting screw (key 35)

11. Turn the adjusting screw (key 35) clockwise until there is enough control spring (key 6) force to provide proper slack to diaphragm (key 10). Using a crisscross pattern, finish tightening the cap screws (key 24) and hex nuts (key 23) to 90 to

126 inch- pounds / 10.2 to 14.2 N•m of torque. Adjust the control pressure to the desired pressure setting, refer to the Adjustment section.

12. For Type T208M, connect the control line. Refer to the Startup section before putting the regulator back in operation.

8

T208 Series

L1 42 44 49 L1 11 L1 30 L1 12

TORQUE:

14 TO 19 INCH-POUNDS / 1.6 TO 2.1 N•m

17 16 8 45 7 10

41 L2 5 34 L1 31 18

TORQUE:

340 TO 470 INCH-POUNDS / 38.5 TO 53.1 N•m

14 L2 35 38 6 36 50

TORQUE:

60 TO 72 INCH-POUNDS / 6.8 TO 8.1 N•m

7 9

ERSA02738 aPPLy LuBRiCanT (L) (1)

L1 = SiLiCOnE gREaSE

:

L2 = ANTI-SEIZE COMPOUND

1. Lubricants must be selected such that they meet the temperature requirements.

Figure 5. Type T208M Section Drawing (External Registration)

To Convert Constructions

From Type T208 to Type T208M

A control line is needed. New parts required: keys 30,

31 and 34. Key numbers are referenced in Figures 4,

5 and 6.

1. Remove pipe plug (key 27) from the diaphragm casing (key 4). Use this port to connect the control line from upstream. See item number 5 in the

Installation section.

2. Refer to steps 1 through 3 in the Body Area

Maintenance section.

3. Insert the throat seal O-ring (key 31) and machine screw (key 34).

4. Insert the stem seal O-ring (key 30) by following steps 1 through 6 and 8 through 11 in the “To

Disassemble and Reassemble Diaphragm

Part” under Diaphragm and Spring Case Area

Maintenance section.

5. Reassemble following steps 7 through 10 of the

Body Area Maintenance section.

From Type T208M to Type T208

New part required: key 27. Key numbers are referenced in Figures 4, 5 and 6.

1. Insert pipe plug (key 27) in the diaphragm casing

(key 4).

2. Follow steps 1 through 6 and 8 through 11 in the

“To Disassemble and Reassemble Diaphragm Part” under Diaphragm and Spring Case Area Maintenance section to remove the stem O-ring (key 30).

3. Follow steps 1 through 5 of Body Area

Maintenance to remove the throat seal O-ring

(key 31) and machine screw (key 34).

4. Reassemble following steps 7 through 10 of

Body Area Maintenance section.

9

3

22

T208 Series

22

3 26

TORQUE:

90 TO 126 INCH-POUNDS /

10.2 TO 14.2 N•m

24

TORQUE:

23

26

24

27

23

4 27

4

20

19

6

20

19

6

35

22

L2

25

46 25

46 47

48

43

1

2

47

TORQUE:

340 TO 470 INCH-POUNDS /

38.5 TO 53.1 N•m

48

43

TORQUE:

340 TO 470 INCH-POUNDS /

38.5 TO 53.1 N•m

TORQUE:

90 to 126 INCH-POUNDS /

10.2 to 14.2 N•m

1

2

TORQUE:

90 to 126 INCH-POUNDS /

10.2 to 14.2 N•m

35

22 17A6570-B

SPRING CASE DOWNWARD (STANDARD)

TYPE Y602-1 VENT

L2

17A6570-B

TYPE Y602-1 VENT

17A5515-D

SPRING CASE UPWARD

TYPE Y602-11 VENT

ERSA02737 aPPLy LuBRiCanT (L) (1) :

L2 = ANTI-SEIZE COMPOUND

1. Lubricant must be selected such that they meet the temperature requirements.

2. For 0.9 to 2.5 psig / 62 to 172 mbar, 1.3 to 4.5 psig / 90 to 310 mbar and 3.8 to 7 psig / 0.26 to 0.48 bar spring ranges only.

EXTERNAL SQUARE HEAD ADJUSTING SCREW ASSEMBLY OPTION (2)

Figure 6. Type T208 Assembly Drawing

EXTERNAL SQUARE HEAD ADJUSTING SCREW ASSEMBLY OPTION (2)

10

17A5515-D

SPRING CASE UPWARD

TYPE Y602-11 VENT

T208 Series

Parts Ordering

When corresponding with your local Sales Office about this regulator, include the type number and all other pertinent information stamped on the nameplate.

Specify the 11-character part number when ordering new parts from the following parts list.

Parts List

Key Description

Spare Parts Kit, included are keys 9, 10,

11, 12, 25, 42 and 45

(see Table 4 for Trim Option Codes)

Standard Trim

VV Trim

TN Trim

TV Trim

TK Trim

TE Trim

Part number

RT208XXDD12

RT208XXVV12

RT208XXTN12

RT208XXTV12

RT208XXTK12

RT208XXTE12

1 Body

2 Cap Screw (2 required)

See Table 3

For Gray Cast Iron or WCC Carbon Steel Casing 1C856228992

For CF8M/CF3M Stainless Steel Casing 18B3456X012

3 Spring Case

Gray Cast Iron

WCC Carbon Steel, NACE

4 Lower Casing

(2) ERSA00195A1

CF8M/CF3M Stainless Steel, NACE (2)

ERSA02558A0

ERSA00195A0

Gray Cast Iron

WCC Carbon Steel

CF8M/CF3M Stainless Steel, NACE (2)

47B2271X012

ERSA00196A1

ERSA00196A0

5* Orifice, 7/16-inch / 11 mm

Stainless Steel

6 Spring

7 Diaphragm Head (2 required)

0L0832X0012

See Table 2

Stainless Steel

8 Pusher Post

17B9723X032

For Nitrile (NBR) or Fluorocarbon (FKM) Diaphragm

Stainless Steel, NACE (2) 18B3462X012

For Fluorinated Ethylene Propylene (FEP)

Diaphragm

Stainless Steel, NACE (2) ERSA00876A0

9 Diaphragm Gasket, Nitrile (NBR)

(For Fluorinated Ethylene

Propylene (FEP) Diaphragm)

10* Diaphragm

ERSA00713A0

17B9726X012

23B0101X052

ERSA00193A0

Nitrile (NBR)

Fluorocarbon (FKM)

Fluorinated Ethylene Propylene (FEP)

11* Body Seal O-ring

Nitrile (NBR)

Fluorocarbon (FKM)

Perfluoroelastomer (FFKM)

Ethylene Propylene Diene (EPDM)

12* Insert Seal O-ring

Nitrile (NBR)

Fluorocarbon (FKM)

Perfluoroelastomer (FFKM)

Ethylene Propylene Diene (EPDM)

13* Disk Assembly

Stainless Steel with

Nitrile (NBR)

Fluorocarbon (FKM)

Perfluoroelastomer (FFKM)

Ethylene Propylene Diene (EPDM)

1H993806992

1H9938X0012

1H9938X0042

1H9938X0022

1B885506992

1B8855X0012

1B8855X0062

1B8855X0022

ERSA01112A0

ERSA01112A1

ERSA01112A2

ERSA01112A3

Key Description Part number

14 Stem, Stainless Steel

16 Lever Assembly, Stainless Steel

17 Machine Screw (2 required)

Stainless Steel

18 Guide Insert, Stainless Steel

19 Upper spring seat (1) , Steel

20 Lock Nut (1)

ERSA00200A0

1B5375000B2

19A7151X022

27B4028X022

1J618124092

1A413224122

22 Closing Cap

Plastic

Steel

(standard) T11069X0012

1E422724092

Stainless Steel 1E422735072

Carbon Steel (1) ERSA01809A0

23 Hex Nut (8 required)

For Gray Cast Iron or WCC Carbon Steel Casing 1A345724122

For CF8M/CF3M Stainless Steel Casing 1A3457K0012

24 Cap Screw (8 required)

For Gray Cast Iron or WCC Carbon Steel Casing 1A579724052

For CF8M/CF3M Stainless Steel Casing

25* Closing Cap Gasket, Neoprene (CR)

1A5797T0012

1P753306992

26 Vent Assembly

Spring Case Down (Type Y602-1)

Spring Case Up (Type Y602-11)

(standard) 17A6570X012

27 Pipe Plug (Type T208 only) (not shown)

17A5515X012

Carbon Steel (standard) 1A369224492

Stainless Steel, NACE (2) 1A369235072

30* Stem Seal O-ring (Type T208M only)

Nitrile (NBR)

Fluorocarbon (FKM)

Perfluoroelastomer (FFKM)

Ethylene Propylene Diene (EPDM)

31* Throat Seal O-ring (Type T208M only)

Nitrile (NBR)

Fluorocarbon (FKM)

Perfluoroelastomer (FFKM)

Ethylene Propylene Diene (EPDM)

34 Machine Screw (Type T208M only)

Stainless Steel

35 Adjusting Screw

Internal Flat Circular (standard)

External Square Head (1)

For Green and Light blue spring

For Black spring

36 Washer, Plated Carbon Steel

38 Cap Screw, Zinc-plated Steel

41 Back Disk Spring

1H2926G0012

1H2926X0022

1H2926X0042

1H2926X0012

1D682506992

1D6825X0012

1D6825X0032

1D6825X0042

18A0703X022

1B537944012

10B3080X012

1D995448702

18B3440X012

1B290524052

Stainless Steel

42* Back Body Seal O-ring

1E984637022

Inconel ® , NACE (2) 18B0255X012

Nitrile (NBR)

Fluorocarbon (FKM)

Perfluoroelastomer (FFKM)

Ethylene Propylene Diene (EPDM)

43 Back Body Cap

Stainless Steel

44 Disk Spacer

Stainless Steel

45* Diaphragm Head Gasket, Composition

46 Nameplate

47 Drive screw, Stainless Steel (2 required)

48 Flow arrow

49 Backup Ring, Stainless Steel

50 Lower Spring Seat, Zinc-plated Steel

51 NACE Tag

52 Tag Wire

13A1584X012

13A1584X022

13A1584X032

13A1584X042

1F2737X0012

ERSA00198A0

18B3450X012

- - - - - - - - - - -

1A368228982

- - - - - - - - - - -

18B3446X012

1B636325062

- - - - - - - - - - -

- - - - - - - - - - -

*Recommended Spare Part

1. Use for optional external square head adjusting screw assembly recommended for 0.9 to 2.5 psig / 62 to 172 mbar, 1.3 to 4.5 psig / 90 to 310 mbar and 3.8 to 7 psig / 0.26 to 0.48 bar spring ranges only.

2. NACE Standard MR0175-2002.

Inconel ® is a mark owned by Special Metals Corporation.

11

T208 Series

BODy MaTERiaL

Table 3. Body Materials and Part Numbers (Body, key 1)

EnD COnnECTiOn STyLE (1)

Gray Cast Iron

WCC Carbon Steel

NPT

NPT

CL150 RF

CL300 RF

CF8M/CF3M Stainless Steel (3)

PN 16/25/40 RF

NPT (2)

CL150 RF

CL300 RF

PN 16/25/40 RF

1. All flanges are welded. Weld-on flange dimension is 14 inches / 356 mm face-to-face.

2. NACE Standard MR0175-2002.

3. Pipe nipples and flanges are 316 Stainless steel for flanged body assemblies.

3/4-Inch / DN 20 Body

ERSA03695A0

PaRT nuMBER

ERSA00231A1

ERSA01470A0

ERSA01470A2

ERSA01470A4

ERSA00231A0

ERSA01470A6

ERSA01470A8

ERSA01470B0

1-Inch / DN 25 Body

ERSA03697A0

ERSA00764A1

ERSA01470A1

ERSA01470A3

ERSA01470A5

ERSA00764A0

ERSA01470A7

ERSA01470A9

ERSA01470B1

TRiM OPTiOn CODE

Standard

VV

TN

TV

TK

TE

Table 4. Type T208 Trim Option Code

DiaPhRagM MaTERiaL

Nitrile (NBR)

Fluorocarbon (FKM)

Fluorinated Ethylene Propylene (FEP)

Fluorinated Ethylene Propylene (FEP)

Fluorinated Ethylene Propylene (FEP)

Fluorinated Ethylene Propylene (FEP)

DISk AND O-rINg MATErIAL

Nitrile (NBR)

Fluorocarbon (FKM)

Nitrile (NBR)

Fluorocarbon (FKM)

Perfluoroelastomer (FFKM)

Ethylene Propylene Diene (EPDM)

OPERaTing TEMPERaTuRE RangES

-40 to 180°F / -40 to 82°C

40 to 300°F / 4 to 149°C

-20 to 180°F / -29 to 82°C

40 to 180°F / 4 to 82°C

0 to 180°F / -18 to 82°C

-20 to 180°F / -29 to 82°C industrial Regulators

Emerson Process Management

Regulator Technologies, inc.

USA - Headquarters

McKinney, Texas 75070 USA

Tel: +1 800 558 5853

Outside U.S. +1 972 548 3574

Asia-Pacific

Shanghai 201206, China

Tel: +86 21 2892 9000

Europe

Bologna 40013, Italy

Tel: +39 051 419 0611

Middle East and Africa

Dubai, United Arab Emirates

Tel: +011 971 4811 8100 natural gas Technologies

Emerson Process Management

Regulator Technologies, inc.

USA - Headquarters

McKinney, Texas 75070 USA

Tel: +1 800 558 5853

Outside U.S. +1 972 548 3574

Asia-Pacific

Singapore 128461, Singapore

Tel: +65 6770 8337

Europe

Bologna 40013, Italy

Tel: +39 051 419 0611

Chartres 28008, France

Tel: +33 2 37 33 47 00

Middle East and Africa

Dubai, United Arab Emirates

Tel: +011 971 4811 8100

For further information visit www.fisherregulators.com

TESCOM

Emerson Process Management

Tescom Corporation

USA - Headquarters

Elk River, Minnesota 55330-2445, USA

Tels: +1 763 241 3238

+1 800 447 1250

Europe

Selmsdorf 23923, Germany

Tel: +49 38823 31 287

Asia-Pacific

Shanghai 201206, China

Tel: +86 21 2892 9499

The distinctive diamond shape cast into every spring case uniquely identifies the regulator as part of the

Fisher ® brand and assures you of the highest-quality engineering, durability, performance and support.

The Emerson logo is a trademark and service mark of Emerson Electric Co. All other marks are the property of their prospective owners. Fisher is a mark owned by Fisher Controls International LLC, a business of Emerson Process Management.

The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not to be construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. We reserve the right to modify or improve the designs or specifications of such products at any time without notice.

Emerson Process Management Regulator Technologies, Inc. does not assume responsibility for the selection, use or maintenance of any product. Responsibility for proper selection, use and maintenance of any Emerson Process Management Regulator Technologies, Inc. product remains solely with the purchaser.

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