Emerson T208 Data Sheet
Contents
1. 29 to 149 C diaphragm 35 psig 2 4 bar WCC Carbon Steel 20 to 300 F 29 to 149 C With Fluorinated Ethylene Propylene FEP CF8M CF3M Stainless Steel 40 to 300 F diaphragm 10 psig 0 69 bar 40 to 149 C Control Pressure Ranges Spring Case Vent Connection See Table 3 1 4 NPT Flow and Sizing Coefficients Diaphragm Case Control Line Connection Type T208M See Table 4 1 2 NPT C Coefficients and Flow Capacities Approximate Weight See Table 5 17 7 los 8 kg 1 The pressure temperature limits in this Bulletin and any applicable standard or code limitation should not be exceeded 2 Pipe nipples and flanges are 316 Stainless steel for flanged body assemblies 3 See Table 2 for operating temperature ranges for available trim combinations Table 1 Body Sizes End Connection Styles and Maximum Allowable Inlet Casing Pressures BODY SIZE MAXIMUM ALLOWABLE INLET CASING PRESSURE SES Ze WCC Carbon steel NPT CL150 RF CL300 RF or CF8M CF3M Stainless steel 2 PN 16 25 40 RF I 1 All flanges are welded Weld on flange dimension is 14 in 356 mm face to face 2 Pipe nipples and flanges are 316 Stainless steel for flanged body assemblies Introduction The T208 Series are direct operated tank blanketing vapor regulator senses the change in tank pressure through a recovery regulators These regulators are used to sense 1 2 NPT control line tapped in its lower casing See Figure 3 an increase in vessel pressure and vent exce2. Ordering Information When ordering complete the ordering guide on this page Refer to the Specifications section on page 2 Review the description to the right of each specification and the Ordering Guide Type Select One Ll T208 Internal pressure registration T208M External pressure registration Body Size Select One L 3 4 in DN 20 1 in DN 25 Body Material and End Connection Style Select One Gray Cast Iron L NPT WCC Carbon Steel NPT L CL150 RF LI OL300 RF L PN 16 25 40 RF specify rating CF8M CF3M Stainless Steel 1 L NPT LL OL150 RET L CL300 RE L PN 16 25 40 RF specify rating Control Pressure Range Select One L 2 0 to 7 0 in w c 5 to 17 mbar Red 3 0 to 13 0 in w c 7 to 32 mbar Unpainted L 10 0 to 26 0 in w c 25 to 65 mbar Yellow 0 9 to 2 5 psig 62 to 172 mbar Green 1 3 to 4 5 psig 90 to 310 bar Light Blue 3 8 to 7 psig 0 26 to 0 48 bar Black Trim Material See Table 2 Select One L Standard C MV C TV LI TN ie LI TE 1 Pipe nipples and flanges are 316 Stainless steel for flanged body assemblies Bulletin 4 2 1208 information in each referenced table or figure Specify your choice whenever a selection is offered Adjusting Screw Select One LJ Internal Flat Circular standard Ll External Square Head Available for Green Light blue and Black springs only Steel
3. STANDARD VENT POSITION Qtotal Qpump Qthermal where Qtotal Required Flow Rate Qpump Required Flow Rate due to pump in Qthermal Required Flow Rate due to thermal heating Capacity Information Table 5 shows the T208 Series Cy coefficient and flow capacities of air at selected set pressure Flows are in SCFH at 60 F and 14 7 psia and Nm3 h at 0 C and 1 01325 bar of 1 0 specific gravity air For gases of other specific gravities divide the given capacity of air by the square root of the appropriate specific gravity of the gas required To determine regulating capacities at pressure settings not given or to determine wide open flow capacities use the following formula 520 3417 AP DEG Q sr CgP4SIN C P where Q flow rate SCFH G gas specific gravity T absolute temperature of gas at inlet Rankine Cg gas sizing coefficient Table 4 P4 absolute inlet pressure psia C4 C Cy flow coefficient Table 4 AP pressure drop across the regulator psi Bulletin 4 2 1208 lt 8 38 212 9 p 5 58 141 6 A FLANGED 4 12 104 6 2 25 57 2 1 2 NPT CONTROL l Y LINE CONNECTION E 6 18 157 P gt lt pa 10 37 263 4 gt T208 SERIES WITH NPT END CONNECTION 8 07 205 MAXIMUM Y T208 SERIES WITH FLANGED END CONNECTION SPRING ADJUSTMENT ASSEMBLY OPTION IN mm Figure 5 Dimensions
4. closing cap is automatically supplied in this option Closing Cap Material Select One L Plastic standard not available for Green Light blue and Black springs Steel standard for Green Light blue and Black springs Stainless steel Body Position See Figure 4 Select One LI Position 1 standard Ll Position 2 Ll Position 3 Ll Position 4 Spring Case Orientation Vent Type Select One L Spring Case Down Type Y602 1 standard Spring Case Up Type Y602 11 Vent Position See Figure 4 Select One LI Position A standard Ll Position B Ll Position C LI Position D NACE Standard MR0175 2002 Construction Select One L Yes LI No Replacement Parts Kit Optional L Yes send one replacement parts kit to match this order Bulletin 74 2 T208 Ordering Guide continued Regulators Quick Order Guide Readily Available for Shipment Allow Additional Time for Shipment Special Order Constructed from Non Stocked Parts Consult your local Sales Office for Availability Availability of the product being ordered is determined by the component with the longest shipping time for the requested construction 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 4
5. 0013 Italy Tel 39 051 419 0611 Middle East and Africa Dubai United Arab Emirates Tel 971 4811 8100 For further information visit www fisherregulators com Specification Worksheet Application Please designate units Specific Use Line Size Fluid Type and Specific Gravity Fluid Temperature A Does the Application Require Overpressure Protection Yes LJ No If yes which is preferred Relief Valve L1 Monitor Regulator L1 Shutoff Device Is overpressure protection equipment selection assistance desired Pressure Maximum Inlet Pressure Minimum Inlet Pressure Differential Pressure Set Pressure Maximum Flow Qmax Performance Required 5 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 971 4811 8100 Accuracy Requirements Less than or Equal to C 20 L Wide Open Other Requirements 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 Pacifi
6. 2 1208 Specifications This section lists the specifications of the T208 Series Tank Blanketing Vapor Recovery Regulator Factory specification such as maximum temperature maximum inlet and outlet pressures spring range and seat or orifice size are stamped on the nameplate fastened on the regulator at the factory Available Configurations Orifice Size Type T208 Tank Blanketing Vapor Recovery regulator 7 16 in 11 mm with control pressure range of 2 in w c to 7 psig Body and Casing Materials 5 mbar to 0 48 bar in six different spring ranges Gray Cast Iron WCC Carbon Steel and and has internal pressure registration requiring no CF8M CF3M Stainless Steel 2 control line Trim Materials Type T208M Similar to Type T208 but has a blocked See Table 2 throat and a control line connection for external Material Temperature Capabilities 1 3 pressure registration Elastomer Parts Body Sizes and End Connection Styles Nitrile NBR 40 to 180 F 40 to 82 C See Table 1 Fluorinated Ethylene Propylene FEP 20 to 180 F Maximum Allowable Inlet Casing Pressure 29 to 82 C See Table 1 Fluorocarbon FKM 40 to 300 F 4 to 149 C Maximum Outlet Pressure Ethylene Propylene Diene EPDM 20 to 225 F 35 psig 2 4 bar 29 to 107 C Maximum Emergency Inlet Pressure to Avoid Internal Perfluoroelastomer FFKM 0 to 300 F 18 to 149 C Parts Damage Body Materials With Nitrile NBR or Fluorocarbon FKM Gray Cast Iron 20 to 300 F
7. 2 0 to 7 0 in w c 5 to 17 mbar Red 3 0 to 13 0 in w c 7 to 32 mbar Unpainted 10 0 to 26 0 in w c 25 to 65 mbar Yellow 15 e r N o S N w N alo 2N JIN oio GE 455 l e 15 37 8 89 22 1 Black 091025 psig o0 o 22 4 62 to 172 mbar 1 psig 70 0 78 psig 54 1426 Green 1687 YI e o o 23 Z 22 90 to 310 mbar 2 psi 140 1 49 psig 103 1694 Light Blue 1904 TET 0 1139 0 26 to 0 48 bar 5 psio 340 2 79 psig 192 2286 Installation Install the T208 Series regulator using a straight run pipe of 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 To achieve the established regulator capacities the regulators should be installed with the spring case barrel pointed down regulator shipped Refer to this for complete installation operation and maintenance instructions Included is a complete listing of individual parts and recommended spare parts Overpressure Protection Vapor recovery regulators are used to maintain a constant inlet blanket pressure with the outlet flowing to a system See Figure 1 Emerson Process Management Regulator Technologies Inc Emerson V provides an instruction manual with every whose pressure is lower than that at the inlet The recovery reg
8. RESSURE E OUTLET PRESSURE D 1 ATMOSPHERIC PRESSURE Figure 3 Type T208M with External Pressure Registration Operational Schematics Bulletin 4 2 1208 Table 2 Available Construction and Trim Materials AVAILABLE CONSTRUCTION MATERIAL AVAILABLE TRIM OPTION Guide Insert Body and Diaphragm Lever Trim Option E Operating Temperature Casing Head Assembly Code Diaphragm Material Disk and O ring Material Range Stem and Pusher Post Fluorinated Ethylene Propylene FEP 1 Pipe nipples and flanges are 316 Stainless steel for flanged body assemblies Gray cast iron WCC Carbon steel or CF8M CF3M Stainless steel 1 316 Stainless 304 Stainless 302 Stainless Table 3 Control Pressure Ranges and Spring Information E En er m m 1 To achieve the published control pressure range the spring case must be installed pointing down 2 Do not use Fluorocarbon FKM diaphragm with these springs at diaphragm temperatures lower than 60 F 16 C Table 4 Flow and Sizing Coefficients ORIFICE SIZE REGULATING SCENT O m m L amp T a z TT TT 76 Table 5 T208 Series C Coefficient and Flow Capacity APACITIES OF AIR SET PRESSURE MINIMUM BUILDUP TO WIDE OPEN VACUUM OUTLET PRESSURE C COEFFICIENT C CITIES O Iinwc mbar inwc mbar psg SCFH 0 0 J 831 12 J 51 CONTROL PRESSURE RANGE AND SPRING COLOR 2 0 5 0 4 02
9. T208 Seri Bulletin 74 2 1T208 October 2014 es Tank Blanketing Vapor Recovery Regulators Figure 1 Type T208 Tank Blanketing Vapor Recovery Regulator Contents Features Introduction Specifications Principle of Operation Installation Overpressure Protection Capacity Information Ordering Information Ordering Guide Features T 1 Accurate Control Large diaphragm area provides very us s E E 2 accurate throttling control at low pressure settings 2 Easy Conversion Changes easily from the Type T208 to the Type T208M with two O rings and a munnunnunuananaannananaanananananananananaanananananananana 2 machine screw EEA 4 Rugged Construction Heavy duty casings and internal T ene 5 s 4 parts are designed to reduce vibration and shock and give this regulator the ability to withstand up to 35 psig us SS S 9 2 4 bar with Nitrile NBR and Fluorocarbon FKM T n 7 diaphragms and 10 psig 0 69 bar with Fluorinated un ss n 7 SL Spa u L Ls s parts damage Simplicity Direct operated straightforward stem and lever design minimizes the number of parts while providing excellent regulation of pressure Sour Gas Service Capability Available construction to meet NACE MR0175 2002 8 EMERSON Process Management D103751X012 Bulletin 4
10. c 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 Emerson Process Management Regulator Technologies Inc 2013 2014 All Rights Reserved s EMERSON Process Management
11. ssive internal When vessel pressure increases above the setpoint of the tank pressure to an appropriate vapor recovery disposal regulator due to thermal heating or pump in of the product the or reclamation system T208 Series may also be used as pressure on the diaphragm overcomes the force of the control backpressure regulators or relief valves spring The disk moves away from the orifice allowing gas to flow from the vessel to the vapor recovery system Principle of Operation As vessel pressure is reduced the force of the back disk spring Type T208 vapor recovery regulator senses the change in causes the disk to move toward the orifice decreasing the flow tank pressure internally see Figure 2 while Type T208M 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 Bulletin 4 2 1208 PIPE PLUG ORIFICE LEVER DISK STEM DIAPHRAGM BACK DISK SPRING CONTROL SPRING UMBRELLA VENT ERSA02737 GE INLET PRESSURE E OUTLET PRESSURE D ATMOSPHERIC PRESSURE Figure 2 Type T208 with Internal Pressure Registration Operational Schematics STEM SEAL O RING ORIFICE LEVER CONTROL LINE CONNECTION DISK DIAPHRAGM apaapa ERA SS ee A QJ EN NEN k Ww Z a a BACK DISK SPRING THROAT SEAL lt S CONTROL SPRING UMBRELLA VENT ERSA02738 ENS INLET P
12. ulators are not intended to be used as an ASME certified relief device for overpressure protection on a tank They are to POSITION 3 POSITION 4 BODY POSITION Figure 4 Body and Vent Position 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 or reclamation system Provide alternate methods of emergency overpressure protection Universal NACE Compliance Optional materials are available for applications handling sour gases These constructions comply with the recommendations of National Association of Corrosion Engineers NACE sour service standards The manufacturing processes and materials used by Emerson assure that all products specified for sour gas service comply with the chemical physical and metallurgical requirements of NACE MR0175 2002 Customers have the responsibility to specify correct materials Environmental limitations may apply and shall be determined by the user Sizing Blanketing Systems When sizing a gas vapor recovery regulator system consider the volume of blanketing gas that must be displaced from the vessel when either filling the vessel with liquid pump in or the expansion of vapors inside the vessel during atmospheric thermal heating Using the established procedures from American Petroleum Institute Standard 2000 API 2000 determine the flow rate for outbreathing Bulletin 4 2 1208 A
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