Emerson T205 Instruction Manual
Contents
1. also perform Body Area Maintenance procedure steps 1 and 4 and pull the stem out of the lower casing key 4 With a Type T205M grease the replacement stem seal O ring key 30 with a good grade of lubricant and install it on the stem key 14 Install the stem into the lower casing and perform Body Area Maintenance procedure steps 7 through 9 as necessary 10 11 12 13 Install the lever assembly key 16 into the stem key 14 and secure the lever assembly with the machine screws key 17 using 14 to 19 inch pounds 1 6 to 2 1 Nem of torque Hold the pusher post and place diaphragm assembly parts on the pusher post in the following order e diaphragm head gasket key 45 e diaphragm head key 7 e diaphragm key 10 e diaphragm head e lower spring seat key 50 e washer key 36 Secure with diaphragm cap screws key 38 using 60 to 72 inch pounds 6 8 to 8 1 Nem of torque Install the pusher post key 8 and attached parts onto the lever key 16 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 spring case cap screws key 24 and hex nuts key 23 to finger tightness only 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 control spring k2. 27A5516 C O APPLY LUBRICANT L1 SILICONE GREASE L2 ANTI SEIZE COMPOUND 1 Lubricants must be selected such that they meet the temperature requirements 2 For 1 2 to 2 5 psig 83 to 172 mbar 2 5 to 4 5 psig 0 17 to 0 31 bar and 4 5 to 7 psig 0 31 to 0 48 bar spring ranges only Figure 7 Type T205 Regulator Assembly with Internal Registration 43 45 49 L1 SZ g SAS e al N NJ o L1 TORQUE 14 to 19 INCH POUNDS 1 6 to 2 1 Nem L L2 DE Ls 48 Ga 340 TO 470 INCH POUNDS 38 5 TO 53 1 Nem TORQUE 90 TO 126 INCH POUNDS 10 2 TO 14 2 Nem ERSA02736 LO APPLY LUBRICANT L1 SILICONE GREASE L2 ANTI SEIZE COMPOUND L2 OOGO 120 46 8 8 Go x Ei N a he n TAR U I BODOH TORQUE 60 TO 72 INCH POUNDS 6 8 TO 8 1 Nem Lubricants must be selected such that they meet the temperature requirements 2 For 1 2 to 2 5 psig 83 to 172 mbar 2 5 to 4 5 psig 0 17 to 0 31 bar and 4 5 to 7 psig 0 31 to 0 48 bar spring ranges only T205 Series yy SAS 4 Vy COT iN l YG y L ISL SS ee oe I 1 l EXTERNAL SQUARE HEAD ADJUSTING SCREW ASSEMBLY OPTION TORQUE 90 TO 126 INCH POUNDS 10 2 TO 14 2 Nem Figure 8 Type T205M Regulator
3. Tel 39 051 419 0611 Middle East and Africa Dubai United Arab Emirates Tel 011 971 4811 8100 Description Part Number Stem Seal O ring Type T205M only Nitrile NBR 1H2926G0012 Fluorocarbon FKM 1H2926X0022 Perfluoroelastomer FFKM 1H2926X0042 Ethylene Propylene Diene EPDM 1H2926X0012 Throat Seal O ring Type T205M only Nitrile NBR 1D682506992 Fluorocarbon FKM 1D6825X0012 Perfluoroelastomer FFKM 1D6825X0032 Ethylene Propylene Diene EPDM 1D6825X0042 Pitot Tube Type T205 Stainless steel 17B4479X012 Machine Screw Type T205M only 1 required Stainless steel 18A0703X022 Adjusting Screw Internal Flat Circular standard 1B537944012 External Square Head For Green and Light Blue spring 10B3080X012 For Black spring 1D995448702 Washer Plated carbon steel 18B3440xX012 Diaphragm Cap Screw Zinc plated steel 1B290524052 Diaphragm Head Gasket Composition 18B3450X012 Nameplate 2 eee Drive Screw Stainless steel 2 required 1A368228982 Flow arrow eee Backup Ring Stainless steel 18B3446X012 Lower Spring Seat Zinc plated steel 1B636325062 NACE Tag K ee eee eee Tag Wire ee eee Part Number Key 1A866537022 30 1B5375000B2 19A7151X022 19A7151X022 27B4028X022 31 1J618124092 1A413224122 32 T11069X0012 34 1E422724092 1E422735072 35 ERSA01809A0 1A345724122 1A3457K0012 36 1A579724052 38 1A5797T0012 45 1P753306992 46 47 48 27A5516X012 49 17A6570X012 50 17A5515X012 51 52 1A369224492 1A
4. key 27 Figure 7 in the lower casing key 4 Follow steps 1 3 and 4 of Diaphragm and Spring Case Area Maintenance Section to remove one machine screw key 34 Figure 8 the stem seal O ring key 30 Figure 8 and the throat seal O ring key 31 Figure 8 blocking the registration port Insert pitot tube key 32 Figure 7 and four pitot tube machine screws key 17 using 14 to 19 inch pounds 1 6 to 2 1 Nem of torque as outlined in step 5 of the Body Area Maintenance section 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 eleven 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 15 25 and 45 see Table 6 for Trim Option Codes Standard Trim VV Trim TN Trim TV Trim TK Trim TE Trim Recommended spare part 1 2 NACE Standard MRO175 2002 Part Number RT205XXDD12 RT205XXVV12 RT205XXTN12 RT205XXTV12 RT205XXTK12 RT205XXTE12 Key N 5 NO 9 10 11 12 137 14 T205 Series Description Body Cap Screw 2 required For WCC Carbon steel or Gray Cast iron casing For CF8M CF3M Stainless steel casing Spring Case Gray Cast iron WCC Carbon steel CF8M CF3M Stainless steel Lower Casing Gray Cast iron WCC Carbon steel CF8M
5. 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 T205 Tank blanketing regulator with outlet pressure range of 1 inch w c to 7 psig 2 5 mbar to 0 48 bar in seven different spring ranges and has internal pressure registration requiring no downstream control line Type T205M Similar to Type T205 but has a blocked throat and a downstream control line connection for external pressure registration Body Sizes and End Connection Styles See Table 1 Maximum Allowable Inlet Pressure See Table 1 Maximum Operating Inlet Pressure See Table 2 Maximum Outlet Casing Pressure Gray Cast iron 35 psig 2 4 bar WCC Carbon steel or CF8M CF3M Stainless steel 75 psig 5 2 bar Maximum Emergency Outlet Pressure to Avoid Internal Parts Damage With Nitrile NBR or Fluorocarbon FKM diaphragm 35 psig 2 4 bar With Fluorinated Ethylene Propylene FEP diaphragm 10 psig 0 69 bar Outlet Control Pressure Ranges See Table 3 Shutoff Classification per ANSI FCI 70 3 2004 Class VI Soft Seat Pressure Registration Type T205 Internal Type T205M External Material Temperature Capabilities 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 22
6. screw key 35 either clockwise to increase outlet pressure or counterclockwise to decrease outlet pressure Always use pressure gauge COTTER PIN KEY 15 Figure 6 Proper Bending of Cotter Pin key 15 to monitor the tank blanketing gas 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 Fora regulator with control line Close the valve in the control line and vent the diaphragm casing to the atmosphere 4 Open the vent valve between the regulator and the downstream shutoff valve nearest to it All pressure between these shutoff valves is released through the open vent valve since a T205 Series remains open in response to the decreasing downstream pressure 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 To avoid personal injury property damage or equipment damage caused by sudden release of pressure or explo
7. 369235072 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 v 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 product
8. 5 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 T205M 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 5 for operating temperature ranges for available trim combinations a ae 1 Body Sizes End Connection Styles and Maximum Allowable Inlet Pressures MAXIMUM ALLOWABLE INLET PRESSURE ee SIZE BODY MATERIAL END CONNECTION STYLES 3 4 or 1 20 or 25 WCC Carbon steel NPT CL150 RF a E CF8M CF3M CF8M CF3M Stainless steel _ CF8M CF3M Stainless steel 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 Table 2 Maximum Operating Inlet Pressures MAXIMUM OPERATING INLET PRESSURE 0 5 to 1 2 psig 1 2 to 2 5 psig 34 to 83 mbar 83 to 172 mbar 0 17 to 0 31 bar 0 31 to 0 48 bar Outlet Control Outlet Control Outlet Control Outlet Control Outlet Control Outlet Control Outlet Control Pressure Setting Pressure Setting Pressure Setting Pressure Set
9. Assembly with External Registration 11 T205 Series Key 15 16 17 18 19 20 22 23 24 25 26 27 Description Cotter Pin Stainless steel Lever Assembly Stainless steel Machine Screw Stainless steel Type T205 6 required Type T205M 2 required Guide Insert Stainless steel Upper Spring Seat Steel Optional Lock Nut Optional Closing Cap Plastic standard Steel Stainless steel Carbon steel Hex Nut 8 required For WCC Carbon steel or Gray Cast iron casing For CF8M CF3M Stainless steel casing Spring Case Cap Screw 8 required For WCC Carbon steel or Gray Cast iron casing For CF8M CF3M Stainless steel casing Closing Cap Gasket Neoprene CR Vent Assembly Spring Case Sideways standard Type Y602 12 Spring Case Down Type Y602 1 Spring Case Up Type Y602 11 Pipe Plug Type T205 only Carbon steel standard Stainless steel NACE Recommended spare part 1 Use for optional external square head adjusting screw assembly recommended for 1 2 to 2 5 psig 83 to 172 mbar 2 5 to 4 5 psig 0 17 to 0 31 bar and 4 5 to 7 psig 0 31 to 0 48 bar spring ranges only 2 NACE Standard MR0175 2002 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
10. CF3M Stainless steel Orifice 303 Stainless steel standard 1 8 inch 3 2 mm 1 4 inch 6 4 mm 3 8 inch 9 5 mm 1 2 inch 13 mm 9 16 inch 14 mm 316 Stainless steel NACE 1 8 inch 3 2 mm 1 4 inch 6 4 mm 3 8 inch 9 5 mm 1 2 inch 13 mm 9 16 inch 14 mm Spring Diaphragm Head 2 required Stainless steel Pusher Post For Nitrile NBR or Fluorocarbon FKM diaphragm 303 Stainless steel standard 316 Stainless steel NACE For Fluorinated Ethylene Propylene FEP diaphragm Stainless steel NACE Diaphragm Gasket For Fluorinated Ethylene Propylene FEP diaphragm Nitrile NBR Diaphragm Nitrile NBR Fluorocarbon FKM Fluorinated Ethylene Propylene FEP Body Seal O ring Nitrile NBR Fluorocarbon FKM Perfluoroelastomer FFKM Ethylene Propylene Diene EPDM Insert Seal O ring Nitrile NBR Fluorocarbon FKM Perfluoroelastomer FFKM Ethylene Propylene Diene EPDM Disk Assembly 303 Stainless steel standard Nitrile NBR Fluorocarbon FKM Ethylene Propylene Diene EPDM 316 Stainless steel NACE Nitrile NBR Fluorocarbon FKM Perfluoroelastomer FFKM Ethylene Propylene Diene EPDM Stem 303 Stainless steel standard 316 Stainless steel NACE Part Number See Table 4 10856228992 18B3456X012 ERSA02558A0 ERSA00195A1 ERSA00195A0 47B2271X012 ERSA00196A1 ERSA00196A0 1A936735032 0B042035032 0B042235032 1A928835032 10425235032 1A9367X0022 0B0420X0012 0B0422X0012 1A9288
11. Instruction Manual T205 Series April 2014 T205 Series Tank Blanketing Regulators Table of Contents BI NIN CN a oss se cece E Sai ees ae cee ese eee eee 1 SCC NG ONS oss chaste se nei Era Ea 2 Principle OF Operation vssesccecesteeesecetsciecratictendensenoiaceweenes 3 PV AM CO sarsies ea a aaa aana 3 Overpressure Protection ccccccccceecccceecceceeeeseeeeesseeesaaaees 5 Startup Adjustment and Shutdown cccceeceeeseeeeeeeeeees 5 PROSE OMCUN cioaietedicesstnanscrsces neniani nenaad iiras anaE aianei 6 SLUICE 011 4 AEP E E EE A ee eee EE renee 6 PY VANS INC oars cecteoemc ances scctueas co anna RET Eee iSe EERST 6 Parle OFS iH hea esse pace ncevenneenraeeeseaeiecennsetarssancemnerdnciesenae 9 Figure 1 Type 1205 Tank Blanketing Regulator BA MIS soscceic otceteie Saree Stccicscs ni eeto E E 9 ANAN NINE Introduction Scope of the Manual Failure to follow these instructions or to properly install and maintain this equipment This Instruction Manual provides instruction for installation could result in an explosion fire and or startup maintenance and parts ordering information for the chemical contamination causing property T205 Series tank blanketing regulators damage and personal injury or death Fisher regulators must be installed Product Description operated and maintained in accordance with federal state and local codes rules T205 Series tank blanketing regulator is a direct operated and regu
12. X0012 1C4252X0022 See Table 3 17B9723X032 18B3462X032 18B3462X012 ERSA00876A0 ERSA00713A0 17B9726X012 23B0101X052 ERSA00193A0 1H993806992 1H9938X0012 1H9938X0042 1H9938X0022 1B885506992 1B8855X0012 1B8855X0062 1B8855X0022 104248X0202 1C4248X0052 104248X0302 104248X0252 1C4248X0192 104248X0332 1C4248X0152 17B3423X012 17B3423X022 Use for optional external square head adjusting screw assembly recommended for 1 2 to 2 5 psig 83 to 172 mbar 2 5 to 4 5 psig 0 17 to 0 31 bar and 4 5 to 7 psig 0 31 to 0 48 bar spring ranges only T205 Series TORQUE TORQUE 14 to 19 INCH POUNDS 14 to 19 INCH POUNDS 1 6 to 2 1 Nem 1 6 to 2 1 Nem 13 GDL aL GDG Ge G Gs G Go Io o ma 7 AAS cA L if HASN 1 m dy amp NEN L N ES at f 4 E 4 gt _ I M ahl L hka SAA L gt LoL A Di ELZ ZL N EXTERNAL SQUARE HEAD ADJUSTING SCREW ASSEMBLY OPTION A E a TORQUE TORQUE 340 TO 470 INCH POUNDS 60 TO 72 INCH POUNDS 38 5 TO 53 1 Nem 6 8 TO 8 1 Nem TORQUE 90 TO 126 INCH POUNDS 10 2 TO 14 2 Nem TORQUE 90 TO 126 INCH POUNDS 10 2 TO 14 2 Nem MOSODA ERSA02735 A J IZ 17A5515 D SPRING CASE SIDEWAYS SPRING CASE DOWNWARD SPRING CASE UPWARD TYPE Y602 12 VENT TYPE Y602 1 VENT TYPE Y602 11 VENT
13. ations section or where conditions exceed any ratings of the adjacent piping or piping connections Refer to Overpressure Protection section for recommendations on how to prevent service conditions from exceeding those limits 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 To avoid such injury or damage provide protected against condensation or clogging pressure relieving or pressure limiting devices as required by the appropriate code 3 To keep the spring case vent key 26 Figure 7 or 8 regulation or standard to prevent service from being plugged or the spring case from collecting conditions from exceeding limits moisture corrosive chemicals or other foreign material point the vent down or otherwise protect it The diaphragm casing key 4 Figure 7 or 8 may be rotated in order to obtain desired positioning 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 4 To remotely vent the regulator remove the vent key 26 regulator in a safe location Figure 7 or 8 and install obstruction free tubing or piping into
14. body seal O ring key 11 into the body See Figure 5 9 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 Nem 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 Note Remove any remote control drive unit used with a T205 Series regulator from the spring case key 3 before performing these steps 1 For internal flat circular adjusting screw remove the closing cap key 22 and closing cap gasket key 25 For external square head adjusting screw loosen the locknut key 20 2 Turn the adjusting screw key 35 counterclockwise to remove all the compression from the control spring key 6 3 If the only maintenance procedure to be performed is the changing of the control spring key 6 T205 Series Table 5 Type T205 Trim Option Code Fluorinated Ethylene Propylene FEP Fluorocarbon FKM 40 to 180 F 4 to 82 C T 1 K0 Fluorinated Ethylene Propylene FEP Perfluoroelastomer FFKM 0 to 180 F 18 to 82 C TE Fluorinated Ethylene Propylene FEP Ethylene Propylene Diene EPDM 20 to 180 F 29 to 82 C 1 Includes 316 Stainless steel Trim Parts 4 For internal flat circular adjusting screw a Remove the adj
15. e diaphragm casing and open the disk assembly before performing the following steps Key numbers are referenced in Figures 7 and 8 1 Remove the cap screws key 2 and separate the diaphragm casing key 4 from the body key 1 2 Remove and inspect the body seal O ring key 11 and the backup ring key 49 See Figure 5 3 Inspect and replace the orifice key 5 if necessary Protect the orifice seating surface during disassembly and assembly Lubricate the threads of the replacement orifice with a good grade of light grease and install with 340 to 470 inch pounds 38 5 to 53 1 Nem of torque 4 Remove the cotter pin key 15 to replace the disk assembly key 13 If not necessary skip to step 8 5 To replace the pitot tube key 32 Figure 7 on the Type T205 remove the pitot tube machine screws key 17 install the new pitot tube and secure with the pitot tube machine screws key 17 using 14 to 19 inch pounds 1 6 to 2 1 Nem of torque Position the pitot tube so that it points into the outlet of the body by rotating the guide insert key 18 6 To inspect the throat seal O ring key 31 Figure 8 on the Type T205M remove the machine screw key 34 Figure 8 Replace if necessary and reassemble 7 Install the disk assembly key 13 and secure it with the cotter pin key 15 Bend the cotter pin end using pliers or equivalent tool See Figure 6 8 Place back up ring key 49 into the body key 1 Then place the
16. event 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 An upstream shutoff valve is recommended to simplify maintenance to the regulator It is advisable to install a pressure gauge between the upstream shutoff valve and the blanketing valve Overpressure Protection Personal injury equipment damage or leakage due to escaping accumulated gas or bursting of pressure containing parts may result if this regulator is e Overpressured e Used with incompatible process fluid e Installed where service conditions could exceed the limits given in the Specifications section and on the appropriate nameplate or e Where conditions exceed any ratings of adjacent piping or piping connections To avoid such injury or damage provide pressure relieving or pressure limiting devices to prevent service conditions from exceeding those limits If the regulator is exposed to an overpressure condition it should be inspected for any damage that may have occurred Regulator operation below the limits specified in the Specifications section and regulator name
17. ey 6 upper spring seat key 19 closing cap gasket key 25 closing cap key 22 locknut key 20 adjusting screw key 35 OoOQaqndoa Turn the adjusting screw key 35 clockwise until there is enough control spring force to provide proper slack to diaphragm key 10 Using a crisscross pattern finish tightening the spring case cap screws key 24 and hex nuts key 23 to 90 to 126 inch pounds 10 2 to 14 2 Nem of torque Adjust the outlet pressure to the desired control pressure setting refer to the Adjustment section For Type T205M connect the downstream control line Refer to the Startup section before putting the regulator back in operation To Convert Constructions From Type T205 to Type T205M A control line is needed New parts required keys 30 31 and 17 From Type T205M to Type 1205 New parts required keys 27 32 and 17 1 1 Remove pipe plug key 27 Figure 7 from the lower casing key 4 Use this port to connect the control line from downstream See item number 5 in the Installation section Refer to steps 1 and 5 in the Body Area Maintenance section to remove the four pitot tube machine screws key 17 and pitot tube key 32 Figure 7 Insert the throat seal O ring key 31 Figure 8 and one machine screw key 34 Insert the stem seal O ring key 30 Figure 8 by following steps 1 through 6 in the Diaphragm and Spring Case Area Maintenance section Insert pipe plug
18. l injury property damage or equipment damage caused by bursting of pressure containing parts or explosion of accumulated gas never adjust the control spring to produce an outlet pressure higher than the upper limit of the outlet pressure range see Table 2 for that particular spring If the desired outlet pressure is not within the range of the control 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 With a spring loaded regulator the pressure setting may be adjusted to a value within the spring range shown in Table 3 To adjust the pressure setting perform the following steps key numbers are referenced in Figures 6 and 7 For internal flat circular adjusting screw 1 Remove the closing cap key 22 2 Use a 11 inch 25 mm hex rod or flat screwdriver to 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 tank blanketing pressure when making adjustments 3 After making the adjustment replace the closing cap gasket key 25 and install the closing cap key 22 For external square head adjusting screw 1 Loosen the locknut key 20 2 Turn the adjusting
19. lations and Emerson Process and spring loaded regulator The regulator prevents a stored Management Regulator Technologies Inc liquid from vaporizing into the atmosphere reduces liquid Regulator Technologies instructions combustibility and prevents oxidation or contamination of the product by reducing its exposure to air T205 Series maintains a slightly positive pressure and thereby reduces the possibility of tank wall collapse during pump out operation 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 T205 Series is available in two configurations Type T205 for internal pressure registration requiring no downstream control line and Type T205M which has a blocked throat and a downstream control line connection for external pressure registration 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 must install or service the T205 Series regulator FISHER EMERSON D103748xX012 T205 Series Specifications The Specifications section on this page provides the ratings and other specifications for the T205 Series Factory specification such as type maximum inlet pressure
20. plate does not preclude the possibility of damage from external sources or from debris in the pipeline Type T205 regulators have an outlet pressure rating lower than the inlet pressure rating The recommended pressure limitations are stamped on the regulator nameplate Some type of overpressure protection is needed if the actual inlet pressure can exceed the maximum operating outlet pressure rating Common methods of external overpressure protection include relief valves monitoring regulators shut off devices and series regulation Overpressuring any portion of the regulators beyond the limits in the Specifications section may cause leakage damage to regulator parts or personal injury due to bursting of pressure containing parts Startup Adjustment and Shutdown Note The Specifications section and Tables 1 and 2 provide the maximum pressure capabilities for each regulator construction Use pressure gauges to monitor inlet pressure and outlet pressure during startup Startup 1 Open shutoff valves between the tank blanketing regulator and the tank both sensing and outlet T205 Series BODY SEAL O RING KEY 11 a BODY KEY 1 BACKUP RING KEY 49 Figure 5 Expanded View of the Body Area Showing the Body Seal O ring and Backup Ring Placement 2 Slowly open the supply line shutoff valve to the blanketing valve and leave it fully open 3 Monitor the tank vapor space pressure Adjustment To avoid persona
21. s 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 EMERSON
22. sion 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 T205 Series Table 4 Body Materials and Part Numbers Body key 1 PART NUMBER END CONNECTION STYLE 3 4 inch DN 20 Body 1 inch DN 25 Body BODY MATERIAL Gray Cast iron WCC Carbon steel CL150 RF ERSA01469A0 ERSA01469A1 CL300 RF ERSA01469A2 ERSA01469A3 1 All flanges are welded Weld on flange dimension is 14 inches 356 mm face to face 2 NACE Standard MRO175 2002 Stainless steel 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 lf there is 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 body O ring and pitot tube if used Release all pressure from th
23. 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 T205 Series VALVE DISK STEM LEVER PUSHER POST PIPE PLUG DIAPHRAGM PITOT TUBE CONTROL SPRING gt TYPE Y602 1 VENT GE INLET PRESSURE EEE OUTLET PRESSURE L ATMOSPHERIC PRESSURE Figure 2 Type T205 with Internal Registration Operational Schematics VALVE DISK PUSHER POST O RING STEM SEAL CONTROL LINE CONNECTION THROAT SEAL TYPE Y602 1 VENT CONTROL SPRING a GE NLET PRESSURE SS OUTLET PRESSURE L ATMOSPHERIC PRESSURE Figure 3 Type T205M with External Registration Operational Schematics HORIZONTAL PIPELINE TYPE T205 Gs INLET PRESSURE EGG OUTLET PRESSURE E ATMOSPHERIC PRESSURE LOADING PRESSURE nice OOO VENT POINTED DOWN T205 Series HORIZONTAL PIPELINE DOWNSTREAM CONTROL LINE TYPE T205M Figure 4 Type T205 Actuator Casing Drainage Schematics 5 Type T205M requires a downstream 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 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 pr
24. ting Pressure Setting Pressure Setting Pressure Setting 1 to 2 5 Inches w c 2 5 to 7 Inches w c 7 to 16 Inches w c 2 5 to 6 2 mbar 6 2 to 17 mbar 17 to 40 mbar 2 5 to 4 5 psig 4 5 to 7 psig ORIFICE SIZE Pm oa oo 1 wa ro 2 ro woe 70 ao ien 20m i360 2000 199 rae esa 21 o 26 1 so o 1 125 ss v5 se 5 06 m e 10 w 10 oss e l a1 21 w 24 me u o oo w o0 a 1 w oso oo a1 21 w on resend apso oa aroas OOOO 1 Inlet pressure is limited to 150 psig 10 3 bar for gray cast iron bodies T205 Series Table 3 Outlet Control Pressure Ranges and Spring Information OUTLET CONTROL PRESSURE RANGE SPRING PART SPRING WIRE DIAMETER SPRING FREE LENGTH Pinch mbar NUMBER SONR f men mm n m 7 to 16 17 to 40 1B653927022 Unpainted 0 105 1 To achieve the published outlet 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 Principle of Operation Note T205 Series tank blanketing regulator controls the vapor If the regulator is shipped mounted on space pressure over a stored liquid When liquid is pumped another unit install that unit according to the out of the tank or vapors in the tank condense the pressure appropriate Instruction Manual i a E teak Dees eee 1 Only personnel qualified thro
25. ugh training and experience actuator diaphragm Spring force pushes the pusher post assembly upward the valve disk moves away from the orifice allowing the gas flow to increase See Figures 2 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 and 3 all tubing and piping are clean and unobstructed When pressure in the tank increases the actuator 5 here m i gulator may be installed in any position as long as a is alee seein Hor the a e the flow through the body is in the direction indicated by pusher post assembly lever and valve stem the valve ais the arrow on the body When using a Type T205 or T205M MOVES COser AG INE ONICA TEUUCING JASMON regulator for proper operation to achieve the published capacities at low setpoint the spring case barrel should be Installation installed pointed down as shown in Figure 1 For complete actuator drainage the regulator should be installed as A N WARNING shown in Figure 4 If continuous operation of the system is required during inspection or maintenance install a three Personal injury property damage equipment valve bypass around the regulator damage or leakage due to escaping gas or bursting of pressure containing parts may result if this regulator is overpressured or J WARNING installed where service conditions could exceed the limits given in the Specific
26. usting screw key 35 b Take out the control spring and replace with the desired spring Reinstall the adjusting screw d Adjust the outlet pressure to the desired control pressure setting refer to steps 2 and 3 of Adjustment section e Change the stamped spring range on the nameplate Skip to step 13 O For external square head adjusting screw a Remove the adjusting screw key 35 and locknut key 20 b Remove the closing cap key 22 closing cap gasket key 25 and upper spring seat key 19 c Take out the control spring and replace with the desired spring d Reinstall the upper spring seat closing cap gasket closing cap locknut and adjusting screw e Adjust the outlet pressure to the desired control pressure setting refer to steps 2 and 3 of Adjustment section f Change the stamped spring range on the nameplate Skip to step 13 If further maintenance to the internal diaphragm casing parts is required remove the hex nuts key 23 and spring case cap screws key 24 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 from the attached parts unscrew the diaphragm cap screw key 38 from the pusher post If the only maintenance is the replacement of the diaphragm components skip to step 7 To replace the lever assembly key 16 remove the machine screws key 17 To replace the stem key 14
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