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Instruction Manual

D103752X012
September 2020

T208 Series

T208 Series Tank Blanketing Vapor  

Recovery Regulators

Table of Contents

Introduction ..................................................................1
Specifications ..............................................................2
Principle of Operation ..................................................2
Installation ...................................................................4
Startup, Adjustment and Shutdown .............................5
Maintenance ................................................................6
Parts Ordering .............................................................8
Parts List......................................................................9

 

 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. (Emerson) 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.

Figure 1.

 Type T208 Tank Blanketing Vapor Recover Regulator

Summary of Contents for FISHER T208 Series

Page 1: ...Emerson 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 conditi...

Page 2: ...ing Case Vent Connection 1 4 NPT Diaphragm Case Control Line Connection Type T208M 1 2 NPT Approximate Weight 17 7 lbs 8 kgs 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 3 Special low temperature constructions for process temperatures ...

Page 3: ...s STEM ORIFICE LEVER PIPE PLUG DIAPHRAGM TYPE Y602 1 VENT CONTROLSPRING BACK DISK SPRING DISK STEM SEAL O RING LEVER CONTROLLINECONNECTION DIAPHRAGM TYPE Y602 1 VENT CONTROL SPRING BACK DISK SPRING DISK ORIFICE THROAT SEAL INLET PRESSURE OUTLET PRESSURE ATMOSPHERICPRESSURE INLET PRESSURE OUTLET PRESSURE ATMOSPHERICPRESSURE 3 T208 Series ...

Page 4: ...e 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 forei...

Page 5: ... 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 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 i...

Page 6: ...ect 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 ...

Page 7: ...hragm 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 t...

Page 8: ...ap screws key 24 and hex nuts key 23 to 98 to 126 in lbs 11 1 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 To Convert Constructions From Type T208 to Type T208M A control line is needed New parts required keys 30...

Page 9: ...Closing Cap Plastic standard T11069X0012 Steel 1E422724092 Stainless steel 1E422735072 Carbon steel 1 ERSA01809A0 23 Hex Nut 8 required For Gray cast iron or WCC Carbon steel casing 1A345724122 For LCC Carbon steel or CF8M CF3M Stainless steel casing 1A3457K0012 24 Cap Screw 8 required For Gray cast iron or WCC Carbon steel casing 1A579724052 For LCC Carbon steel or CF8M CF3M Stainless steel 1A579...

Page 10: ...END CONNECTION STYLE 1 PART NUMBER 3 4 In DN 20 Body 1 In DN 25 Body Gray cast iron NPT ERSA03695A0 ERSA03697A0 WCC Carbon steel NPT ERSA00231A1 ERSA00764A1 CL150 RF ERSA01470A0 ERSA01470A1 CL300 RF ERSA01470A2 ERSA01470A3 PN 16 25 40 RF ERSA01470A4 ERSA01470A5 CF8M CF3M Stainless steel 3 NPT 2 ERSA00231A0 ERSA00764A0 CL150 RF ERSA01470A6 ERSA01470A7 CL300 RF ERSA01470A8 ERSA01470A9 PN 16 25 40 RF...

Page 11: ... 60 TO 72 IN LBS 6 8 TO 8 1 N m Table 4 Type T208 Trim Option Code TRIM OPTION CODE DIAPHRAGM MATERIAL DISK AND O RING MATERIAL OPERATING TEMPERATURE RANGES Standard Nitrile NBR Nitrile NBR 40 to 180 F 40 to 82 C VV Fluorocarbon FKM Fluorocarbon FKM 40 to 300 F 4 to 149 C TN Fluorinated Ethylene Propylene FEP Nitrile NBR 20 to 180 F 29 to 82 C TV Fluorinated Ethylene Propylene FEP Fluorocarbon FKM...

Page 12: ...sponsibility 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 TORQUE 98 TO 126 IN LBS 11 1 TO 14 2 N m TORQUE 340 TO 470 IN LBS 38 5 TO 53 1 N m TORQUE 90 TO 126 IN LBS 10 2 TO 14 2 N m EXTERNAL SQUARE HEAD ADJUSTING SCREW ASSEMBLY OPTION...

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