Emerson MR108 Data Sheet
Contents
1. 120 51 12 to 30 psig 0 83 to 2 1 bar GE42911X012 Orange 15 to 35 psig 1 0 to 2 4 bar GE43002X012 Red continued Table 10 Typical Water Capacities with Quick Opening Cage Setpoint Made at 10 Flow For Type MR108 Low Pressure Actuator continued CAPACITIES IN GPM LPM OF WATER RELIEF Pressure Buildup Over Relief Setting NPS 3 DN 80 Body NPS 4 7 DN 100 Body 5 to 14 psig 0 35 to 0 97 bar GE42909X012 White 8 to 24 psig 0 55 to 1 7 bar GE42910X012 Silver om ae e we 12 to 30 psig 0 83 to 2 1 bar esr a om oo mL we ae Orange 2 i os ne a re ow 15 to 35 psig GE43002X012 Red 11 Bulletin 71 4 MR108 Table 11 Typical Water Capacities with Quick Opening Cage Setpoint Made at 10 Flow For Type MR108 High Pressure Actuator SPRING RANGE PART NUMBER COLOR CODE 25 to 40 psig 1 7 to 2 8 bar GE42906X012 Blue 35 to 70 psig 2 4 to 4 8 bar GE42907X012 Green 55 to 120 psig 3 8 to 8 3 bar GE42909X012 White 90 to 200 psig 6 2 to 13 8 bar GE42910X012 Silver 175 to 300 psig 12 1 to 20 7 bar GE43002X012 Red RELIEF PRESSURE SETTING CAPACITIES IN GPM LPM OF WATER ain or ao oa a0 von ooo veo nm e Shaded areas indicate where pressure conditions exceed the pressure limit of the actuator continued Table 11 Typical Water Capacities with Quick Opening Cage Setpoin2. L 15 to 35 psig 1 0 to 2 4 bar Red High Pressure Actuator L 25 to 40 psig 1 7 to 2 8 bar Blue L 35 to 70 psig 2 4 to 4 8 bar Green CO 55 to 120 psig 3 8 to 8 3 bar White 1 90 to 200 psig 6 2 to 13 8 bar Silver C 175 to 300 psig 12 1 to 20 7 bar Red Optional Q Inlet Pressure Gauge Tap on Body L Pressure Loaded Actuator O Drain Valve O NACE Construction L Bleed Valve For High Pressure Actuator Only Main Valve Replacement Parts Kit Optional L Yes send one replacement parts kit to match this order Actuator Replacement Parts Kit Optional O Yes send one replacement parts kit to match this order 1 Maximum setpoint is limited to 150 psig 10 3 bar for constructions with Fluorocarbon FKM diaphragm 2 Not applicable for constructions with Fluorocarbon FKM diaphragm Bulletin 71 4 MR108 Ordering Guide continued Specification Worksheet Application Specific Use Line Size Fluid Type Specific Gravity Temperature Pressure Maximum Inlet Pressure Minimum Inlet Pressure Set Pressure Maximum Flow Regulators Quick Order Guide Accuracy Requirements Less Than or Equal To on an ae oe Special Order Constructed from Non Stocked Parts Consult Construction Material Requirements if known 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 R
3. Grade 5 NCF Actuator Adjusting Screw Zinc plated Steel Stainless steel Stainless steel 1 Powder coated Table 4 Wide Open Flow and Sizing Coefficients WIDE OPEN COEFFICIENTS IEC SIZING COEFFICIENTS BODY SIZE Line Size Equals Body Size C FL Xr ons w o S Quick Opening Cage Oo e o g e o o f o y o S Reduced Port Quick Opening Cage Inconel is a mark owned by Special Metals Corporation Bulletin 71 4 MR108 Table 5 Maximum Inlet Outlet and Emergency Casing Pressures BODY MATERIAL Cast Iron NP CL150 RF CL300 RF WCC Steel CL600 RF PN 16 RF PN 16 25 40 RF CL150 RF 70 END CONNECTION High Pressure Actuator Low Pressure Actuator NPT 1 Pressure ratings are based on a maximum operating temperature of 250 F 121 C CF8M Stainless steel CF3M Stainless steel MAXIMUM MAXIMUM MAXIMUM EMERGENCY INLET PRESSURE OUTLET PRESSURE CASING PRESSURE Low Pressure Actuator High Pressure High Pressure Low Pressure Actuator Actuator Actuator 400 340 12 1 x N Ph PD D N DINJIN O oIolIlo 2 Maximum inlet outlet and emergency pressures for constructions with Fluorocarbon FKM diaphragm are limited to 230 psig 15 8 bar or the body rating limit whichever is lower Overpressure Condition Depending upon construction backpressure control ratings are from 5 to 300 psig 0 34 to 20 7 bar The maximum inlet pressure can be found in Table 5 Sys
4. Registration External Upstream Control Line Connection Size 1 2 NPT Spring Case Vent Type Y602 12 Pressure Loaded Spring Case Vent Connection 1 2 NPT Approximate Weights For Type MR108 with Low Pressure Actuator NPS 1 DN 25 88 lbs 40 kg NPS 2 7 DN 50 118 lbs 54 kg NPS 3 7 DN 80 167 lbs 76 kg NPS 4 DN 100 176 Ibs 80 kg For Type MR108 with High Pressure Actuator NPS 1 DN 25 78 lbs 35 kg NPS 2 7 DN 50 107 lbs 49 kg NPS 37 DN 80 156 lbs 71 kg NPS 4 DN 100 166 Ibs 75 kg Options Inlet Pressure Gauge Tap on Body Pressure Loaded Actuator Drain Valve NACE Construction Bleed Valve For High Pressure Actuator only e Ethylene Propylene EPDM Elastomer Trim Parts 1 The pressure temperature limits in this Bulletin or any applicable standard limitation should not be exceeded 2 Fluorocarbon FKM is limited to 200 F 93 C in hot water 3 Ethylene Propylene EPDM is limited to 20 to 225 F 7 to 107 C when used with Low Pressure Actuator Table 1 Body Sizes and End Connection Styles NPT CL150 RF CL300 RF CL600 RF or PN 16 25 40 RF CF8M Stainless steel NPT CL150 RF CL300 RF CL600 RF or PN 16 25 40 RF CL150 RF CL300 RF CL600 RF or PN 16 RF CF3M Stainless steel NPT CL150 RF CL300 RF CL600 RF or PN 16 25 40 RF CL150 RF CL300 RF CL600 RF or PN 16 RF 1 Optional NACE construction available 2 Constructions meet API 614 requirements Introduction The Type MR108 regulato
5. The instruction manual includes a complete listing of individual parts and recommended spare parts Applications Note A linear cage is recommended for applications where low flow stability is a concern but it will limit the overall capacity of the regulator TYPE MR108 BACKPRESSURE REGULATOR OIL TANK Figure 3 Lube Oil Skid Diagram Lube Oil Skids Figure 3 Lube oil skids maintain oil flow to bearings seals and servo controls on critical turbomachinery assets such as air and gas compressors steam turbines power recovery turbines and power generating equipment These skids are essential in keeping lube oil clean at all times and ensure maximum service life for the equipment Because it is critical to maintain a constant flow and pressure of oil to the equipment it is normally equipped with two pumps the main pump and the auxiliary pump which will take over in case of main pump failure and filters In normal condition the skids operate in the following manner e Lube oil is stored in the tank at atmospheric pressure e It is then fed to the main pump Pump 1 which pressurizes the lube oil e Oil then goes through a filter After filtration oil flow is split such that a fraction is sent to a backpressure regulator to limit the supply pressure to the pressure reducing regulator 20 of the pump rate flows through the backpressure regulator sending back oil to the oil tank e The pressure r
6. oor B ISIN a O 32 0 a N a wl w wn o o AJO No o Bulletin 71 4 MR108 Table 8 Typical Air Capacities with Quick Opening Cage Setpoint Made at 10 Flow For Type MR108 Low Pressure Actuator CAPACITIES IN SCFH Nm h OF AIR RELIEF Pressure Buildup Over Relief Setting PART NUMBER SETTING NPS 1 DN 25 Body NPS 2 DN 50 Body COLOR CODE 10 20 30 40 20 30 40 psig bar SCFH Nm in SCFH Ninh Nmvih SCFH Nm SCFH Nm h 550 5 to 14 psig 3100 6100 160 8200 220 9900 6800 14 300 380 20 600 26 500 710 0 35 to 0 97 bar GE42909X012 White 10 9000 240 13 300 360 14 900 400 15 800 420 19 000 51 35 300 940 46 100 1240 54 000 1450 8 to 24 psig 10 069 5800 10 100o 200 13400 360 s 100 400 13 600 370 25 300 680 37 100 45 300 1210 0 55 to 1 7 bar GE42910X012 Silver 20 1 4 14 300 380 20 200 540 22 800 610 24 200 650 35 600 950 63 600 1700 79 100 2120 86 300 2310 12 to 30 psig 6700 180 13 300 360 17 500 470 20 000 530 17 600 470 32 500 870 49 200 1320 61 000 1640 Geaztixo1s 25 17 17 200 460 23 700 640 27 600 740 29 500 790 37 100 99 900 ao eto 25 47 17 200 460 23 700 640 27 600 740 29 500 790 37 100 68 000 1820 87 200 2340 99 900 2680 Orange 20 600 550 27 600 740 30 800 820 32 600 45 9001 1230 82 000 2200 102 000 2740 112 000 3000 15 to 35 psig
7. 3 14 50 368 15 50 394 13 78 350 13 0 330 5 3 135 6 5 165 14 Ordering Information Use the Specifications section on page 2 and carefully review the description to the right of each specification Use this information to complete the Ordering Guide on this page Specify the Ordering Guide Body Size Select One LI NPS 1 DN 25 LI NPS 2 DN 50 O NPS 3 DN 80 LI NPS 4 7 DN 100 Actuator Type Select One O Low Pressure O High Pressure Body Material and End Connection Style Select One Cast Iron L NPT 1 or 2 NPT only O CL125 FF O CL250 RF WCC Steel L NPT 1 or 2 NPT only O CL150 RF O CL300 RF L CL600 RF O PN 16 RF O PN 16 25 40 RF NPS 1 or 2 DN 25 or 50 only CF8M Stainless Steel L NPT 1 or 2 NPT only O CL150 RF O CL300 RF O CL600 RF O PN 16 RF O PN 16 25 40 RF NPS 1 or 2 DN 25 or 50 only CF3M Stainless Steel L NPT 1 or 2 NPT only O CL150 RF O CL300 RF O CL600 RF O PN 16 RF O PN 16 25 40 RF NPS 1 or 2 DN 25 or 50 only Bulletin 71 4 MR108 desired selection wherever there is a choice to be made Then send the Ordering Guide to your local Sales Office Diaphragm O rings and Seal Materials Select One O Nitrile NBR Fluorocarbon FKM L Ethylene Propylene EPDM Actuator Type and Set Pressure Range Select One Low Pressure Actuator L 5 to 14 psig 0 35 to 0 97 bar White L 8 to 24 psig 0 55 to 1 7 bar Silver C 12 to 30 psig 0 83 to 2 1 bar Orange
8. 6600 11 300 15 800 18 000 13 700 370 24 800 36 400 48 800 1310 seazo02xo12 25 1 7 12 800 340 20 400 550 25 100 670 27 300 730 28 300 760 1960 89 800 aaoo 25 1 7 12800 340 20 400 550 25 100 670 27 300 730 28 300 760 53 000 73 000 1960 89 800 2410 Red 35 24 19 200 520 29 800 800 33 500 900 36 200 46 100 1230 85 000 109 000 2920 124 000 3330 continued EJ O Nmn E 90 1230 370 1420 2280 Table 8 Typical Air Capacities with Quick Opening Cage Setpoint Made at 10 Flow For Type MR108 Low Pressure Actuator continued CAPACITIES IN SCFH Nm h OF AIR RELIEF Pressure Buildup Over Relief Setting SPRING RANGE PRESSURE PART NUMBER SETTING NPS 3 DN 80 Body NPS 4 DN 100 Body oe 10 psig bar SCFH Nmn SCFH Nmn SCFH Nmh SCFH Nm Nm SCFH Neh 5 to 14 psig 14 500 23 800 35 600 46 200 1240 12 500 330 18 400 26 000 32 900 880 0 35 to 0 97 bar GE42909X012 White 10 32 400 870 60 200 1610 83 500 2240 99 800 2670 26 400 710 44 600 1200 67 400 1810 86 100 2310 reader 10 069 24 100 42 300 1130 61 800 1660 78 900 2120 22 200 500 36 200 970 51 100 1370 67 100 1800 55 to 1 7 bar 10 GE42910X012 gsstea toe Tos a7 sm Zoe 10 rezono 0 Bulletin 71 4 MR108 Table 9 Typical Air Capacities with Quick Opening Cage Setpoint Made at 10 Flow For Type MR108 High Pressur
9. 70 psig 2 4 to 4 8 bar GE42907X012 Green 55 to 120 psig 3 8 to 8 3 bar GE42909X012 White 90 to 200 psig 6 2 to 13 8 bar GE42910X012 Silver 175 to 300 psig 12 1 to 20 7 bar GE43002X012 Red 10 RELIEF PRESSURE SETTING CAPACITIES IN SCFH Nm h OF AIR NPS 3 DN 80 Body Nm h SCFH 10 aa oar sern nm sor 31 400 52 200 1400 76 100 2000 97 700 2600 36 600 65 100 1700 86 800 30 SCFH Pressure Buildup Over Relief Setting NPS 4 DN 100 Body 86 800 2300 112 000 Fn a orsen zeno renen saoo 210000 oroo ornoo sco sox aroo foroo sin zozom ron araco 17 2 263 000 7000 492 000 13 200 770 000 20 600 1 030 000 27 600 310 000 8300 557 000 14 900 843 000 22 600 1 140 000 Nm h 3000 4600 5700 3700 6100 10 500 5600 9000 18 400 10 000 20 400 32 800 17 000 30 600 359 000 9600 682 000 18 300 990 000 26 500 Ss 384 000 10 300 707 000 18 900 1 100 000 29 500 aa Shaded areas indicate where pressure conditions exceed the pressure limit of the actuator Bulletin 71 4 MR108 Table 10 Typical Water Capacities with Quick Opening Cage Setpoint Made at 10 Flow For Type MR108 Low Pressure Actuator CAPACITIES IN GPM LPM OF WATER PART NUMBER COLOR CODE 5 to 14 psig 0 35 to 0 97 bar GE42909X012 White 8 to 24 psig 0 55 to 1 7 bar GE42910X012 Silver
10. Bulletin 71 4 MR108 October 2014 Type MR108 Direct Operated Backpressure Regulators P1202 1 1B P1203 TYPE MR108 WITH TYPE MR108 WITH LOW PRESSURE ACTUATOR HIGH PRESSURE ACTUATOR Figure 1 Type MR108 Direct Operated Backpressure Regulators Contents Introduction n Specifications Features cccccceeeeeee Principle of Operation Overpressure Condition Features E E EE E 3 e Large Flow O EETA 2 e Stability 3 e Fast Response SAE E asi uns A E PEE Steel and Stainless Steel Constructions Meet EI AEA EE 3 API 614 Requirements POOE EAE EE 6 e Available Constructions to Meet NACE MR0175 NS Tal UO EEEE E E E E O E 6 2003 and MR0103 Requirements for Sour Gas Applications 6 Service Capability secs i seep cede a el a es Multiple Trim Materials Available Universal NACE Compliance cccccseeeeeeeeeneeees 7 e ANSI FCI 70 3 2004 Class VI Shutoff Ordening Informator susccmarsacmnnteeninenvaniteanceneneccuas 15 e Multiple End Connection Options Ordering Guide o ecceececeeesecessesestesseseeteseesenees 15 P P on High Pressure Actuator Suitable for High Temperature Applications up to 250 F 121 C e Drain Valve e Pressure Loaded Actuator e Bleed valve for High Pressure Actuator only r EMERSON Process Management D103257X012 Bulletin 71 4 MR108 Specifications The Specifications section on this page provides the ratings and other specif
11. RE Figure 2 Type MR108 Backpressure Regulator Operational Schematic X Bulletin 71 4 MR108 Table 2 Backpressure Control Ranges MAXIMUM PRESSURE SPRING SPRING WIRE SPRING FREE OVER SETPOINT TO ACTUATOR TYPE Srna A ANO EAR COLOR DIAMETER LENGTH AVOID INTERNAL PARTS NUMBER CODE Low Pressure C swa iowa onoo res om wo resis 2102072 cexoono2 res os wo 1 Maximum setpoint is limited to 150 psig 10 3 bar for constructions with Fluorocarbon FKM diaphragm 2 Not applicable for constructions with Fluorocarbon FKM diaphragm Table 3 Construction Materials Body Flange CF8M CF3M Stainless steel Actuator Casing Low Pressure 316 316L Stainless steel Actuator Casing High Pressure CF3M CF8M Stainless steel Internal Stiffener Plate 316 316L Stainless steel Spring Case CF3M CF8M Stainless steel Spring Case Spacer Zinc plated Steel Stainless steel Cage CF3M CF8M Quick Opening CF8M Linear Stainless steel i 316 316L S20910 Nitronic 50 Valve Plug and Seat Ring 416 Stainless steel Stainless steel NPS 1 DN 25 only Closing Spring Inconel X750 Stem 17400 H1075 Stainless steel 20910 Nitronic 50 Stainless steel Lower Diaphragm Support 17400 H1075 Stainless steel Diaphragm and Seals Nitrile NBR Fluorocarbon FKM Ethylene Propylene EPDM Upper Diaphragm Plate Cast Iron Control Set Spring Steel Alloy Spring Seats Zinc plated Steel Boltin SA194 Grade B7 NCF Body to Bonnet g SAE
12. Standards The manufacturing processes and materials used by Regulator Technologies assure that all products specified for sour gas service comply with the chemical physical and metallurgical requirements of NACE MR0175 and or NACE MR0103 Customers have the responsibility to specify correct materials Environmental limitations may apply and shall be determined by the user Bulletin 71 4 MR108 Table 6 Typical Cy Coefficient With Quick Opening Cage Setpoint Made at 10 Flow For Type MR108 Low Pressure Actuator RELIEF Cy at BUILDUP SPRING RANGE PRESSURE PART NUMBER SETTING NPS 1 DN 25 Body NPS 2 DN 50 Body NPS 3 DN 80 Body NPS 4 DN 100 Body COLOR CODE 5 to 14 psig 0 34 5 76 10 7 13 8 16 12 3 24 6 3 9 41 8 26 5 41 5 9 4 74 0 23 2 0 35 to 0 97 bar GE42909X012 White 10 11 2 15 8 16 9 17 2 23 2 40 7 48 2 48 2 40 71 1 94 0 103 34 1 0 55 to 1 7 bar GE42910X012 Silver 20 1 4 11 7 15 6 16 7 16 9 28 0 47 1 48 2 48 2 47 7 6 8 97 1 103 15 1 0 Te aC CaCO Ce GE42911X012 25 1 7 12 1 15 7 17 3 17 5 25 0 43 1 48 2 48 2 42 3 67 0 87 6 101 43 1 72 9 98 6 124 ioes z 47 oo 196 167 16a o0 s8 6 2 00 ove a2 eon sea ear ont 102 GE43002X012 25 1 7 9 05 13 6 15 7 16 3 19 0 33 6 43 6 48 2 30 9 53 8 73 2 89 4 36 2 59 7 82 1 102 Table 7 Typical Cy Coefficient With Quick Opening Cage Setpoint Made at 10 Flow For Type MR108 High Pres
13. ating on high pressure actuator constructions up to 400 psig 27 6 bar Principle of Operation Refer to Figure 2 The Type MR108 is a multi purpose backpressure regulator Upstream pressure is registered externally through a 1 2 NPT control line connection located at the low pressure actuator bonnet or high pressure actuator lower casing When inlet pressure rises above the set pressure the pressure under the actuator diaphragm increases and opens the regulator This pressure overcomes the regulator setting which is set by the regulator control spring Through the action of the actuator stem the valve plug is pulled upward moving away from the seat ring and allowing fluid to escape through the cage into the downstream system When inlet pressure drops back to set pressure pressure under the actuator diaphragm decreases The control spring and the valve spring forces push the actuator stem downward the valve plug moves closer to the seat ring and the flow decreases downstream as the regulator closes in response to the decreased pressure underneath the diaphragm Bulletin 71 4 MR108 SEAT RING CAGE VALVE SPRING ACTUATOR STEM VALVE PLUG m i DIAPHRAGM ACTUATOR CONTROL SPRING M1179 l SEAT RING CAGE VALVE SPRING ACTUATOR STEM VALVE PLUG DIAPHRAGM CONTROL SPRING M1182 l TYPE MR108 WITH HIGH PRESSURE ACTUATOR HE INLET PRESSURE i OUTLET PRESSURE ATMOSPHERIC PRESSU
14. e Actuator CAPACITIES IN SCFH Nm h OF AIR Pressure Buildup Over Relief Setting SPRING RANGE PART NUMBER COLOR CODE 25 to 40 psig 1 7 to 2 8 bar GE42906X012 Blue 35 to 70 psig 2 4 to 4 8 bar GE42907X012 Green 55 to 120 psig 3 8 to 8 3 bar GE42909X012 White 90 to 200 psig 6 2 to 13 8 bar GE42910X012 Silver 175 to 300 psig 12 1 to 20 7 bar GE43002X012 Red RELIEF PRESSURE SETTING Fen oa 10 SCFH 7900 14 700 15 100 990 oO 18 900 31 90 oO 15 30 oO 25 00 65 700 33 50 77 400 117 000 55 600 111 000 151 000 NPS 1 DN 25 Body Nm h 38 200 1000 36 700 35 700 69 300 1900 oo ear eo wa oo eeo ear o0 38700 oo 2300 1200 2300 3900 1900 3200 6700 3900 7300 5700 Oo 311 000 8300 392 000 400 532 000 14 300 618 000 300 704 000 18 900 via 14 100 26 300 32 000 Tae a a ase re sem ow ane oo se ees on se a e eo ee re i Ee Seco Nm h 2000 3000 3400 2500 3900 5700 3800 5700 8700 7200 10 800 13 800 10 500 16 600 C Shaded areas indicate where pressure conditions exceed the pressure limit of the actuator continued Table 9 Typical Air Capacities with Quick Opening Cage Setpoint Made at 10 Flow For Type MR108 High Pressure Actuator continued SPRING RANGE PART NUMBER COLOR CODE 25 to 40 psig 1 7 to 2 8 bar GE42906X012 Blue 35 to
15. educing regulator decreases the pressure to a safe and allowable range Flow through this regulator is 80 of pump rate Oil flows to large rotating equipment lubricating bearings e g turbines and compressors The loss of pressure or flow to the bearings or these turbomachinery assets may shut down the equipment or even the whole plant Failure of the main pump or filter results in the following upset operation Bulletin 71 4 MR108 TYPE MR105 PRESSURE REDUCING REGULATOR FILTER 2 TO EQUIPMENT pp BEARINGS SEALS OR SERVO CONTROLS e Auxiliary pump Pump 2 and filter system is brought into operation while main pump is in operation e Auxiliary pump ramp up rate is one second Auxiliary pump produces a pressure spike that is beyond the limitations of the pressure reducing regulator e The backpressure regulator relieves the excess pressure back to the oil tank Flow rate is 120 of total pump rate Main pump can now be shut down to allow repair of the system High capacity direct operated regulators are recommended for this type of application where speed of response is critical The Type MR108 can provide fast response to the pressure spikes as described above while maintaining a constant delivery pressure of oil to the bearing Universal NACE Compliance Optional materials are available for applications handling sour gases These constructions comply with the recommendations of NACE International Sour Service
16. egulators 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 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 971 4811 8100 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 For further information visit www fisherregulators com 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 bee
17. ications for the Type MR108 The following information is stamped on the nameplate fastened on the regulator at the factory type body size maximum inlet outlet and differential pressure maximum pressure above setpoint maximum casing pressure maximum temperature spring range cage type and trim and diaphragm material Body Sizes and End Connection Styles See Table 1 Shutoff Classification per ANSI FCI 70 3 2004 Class VI Soft Seat Maximum Inlet Outlet and Emergency Casing Pressure See Table 5 Backpressure Control Ranges 5 to 300 psig 0 34 to 20 7 bar See Table 2 Construction Materials See Table 3 Maximum Setpoint Low Pressure Actuator 35 psig 2 4 bar High Pressure Actuator Nitrile NBR and Ethylene Propylene EPDM Diaphragm 300 psig 20 7 bar Fluorocarbon FKM Diaphragm 150 psig 10 3 bar Maximum Differential Pressures Low Pressure Actuator 70 psig 4 8 bar High Pressure Actuator 400 psig 27 6 bar or maximum inlet pressure whichever is lower Maximum Pressure Over Setpoint to Avoid Internal Parts Damage Low Pressure Actuator 20 psig 1 4 bar High Pressure Actuator 120 psig 8 3 bar Flow and Sizing Coefficients See Table 4 Cy Coefficients See Tables 6 and 7 Capacities See Tables 8 through 11 Temperature Capabilities Nitrile NBR 20 to 180 F 29 to 82 C Fluorocarbon FKM 20 to 250 F 7 to 121 C Ethylene Propylene EPDM 20 to 225 F 29 to 107 C Pressure
18. in 71 4 MR108 1 4 NPT PLUG OR DRAIN VALVE CONNECTION 1 2 NPT CONTROL LINE CONNECTION 1 2 NPT VENT CONNECTION 19 5 495 i _ 13 1 333 P TRIM REMOVAL CLEARANCE ERAA00137 IN mm Figure 4 Type MR108 with Low Pressure Actuator Dimensions Table 12 Type MR108 with Low Pressure Actuator Dimensions In mm ee CL125 FF CL250 RF 8 25 210 7 25 184 7 75 197 8 25 210 762 194 8 4 213 2 9 74 3 6191 11 25 286 10 0 254 10 50 267 11 25 286 10 25 260 8 9 226 3 5 89 4 3 109 ajaj ss 11 75 298 12 50 317 13 25 337 12 48 317 10 2 259 4 2 1 107 5 3 135 a 10 13 88 353 14 50 368 15 50 394 13 78 350 11 5 292 5 3 135 6 5 165 13 Bulletin 71 4 MR108 1 4 NPT PLUG OR DRAIN VALVE CONNECTION 1 4 NPT 1 2 NPT CONTROL LINE CONNECTION 1 8 NPT BLEED VALVE OPTIONAL 18 2 462 1 2 NPT VENT CONNECTION lt 3 4 4 41 86 112 R TRIM REMOVAL CLEARANCE y IN mm Figure 5 Type MR108 with High Pressure Actuator Dimensions Table 13 Type MR108 with High Pressure Actuator Dimensions In mm Body Size E E CL125 FF CL250 RF 8 25 210 7 25 184 7 75 1 197 8 25 210 7 62 194 9 9 251 2 9 74 3 6 91 11 25 286 10 0 254 10 50 267 11 25 286 10 25 260 10 3 262 3 5 89 4 3 109 ps fol 11 75 298 12 50 317 13 25 337 12 48 317 11 6 295 4 2 1107 5 3 135 pa foto e 13 88 35
19. n 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 amp EMERSON Emerson Process Management Regulator Technologies Inc 2010 2014 All Rights Reserved Process Mana ge ment
20. provides superior control stability of delivery pressure Fast Response Direct operated for fast response to meet the most demanding pressure and flow requirements Easy Drain Feature allows you to drain the system without expensive spool pieces saving you time and space Easy Bleed Feature allows you to purge the air trapped underneath the diaphragm when the high pressure regulator is installed in the upright position which improves speed of response Bulletin 71 4 MR108 Steel and Stainless Steel Constructions Meet API 614 Requirements Steel and Stainless steel body constructions comply with the recommendations of API Standard 614 Available Constructions to Meet NACE MR0175 2003 and NACE MRO0103 Requirements for Sour Gas Service Capability Optional materials are available for applications handling sour gases These constructions comply with the recommendations of NACE International Standards MRO175 and MRO103 Multiple Trim Materials Available 416 316 and 316L Stainless steel options are available to meet wider application requirements including demands from lube oil and cooling water applications ANSI FCI 70 3 2004 Class VI Shutoff Soft seat valve plug seals for tight shutoff Multiple End Connection Options Type MR108 is available in several end connection configurations to meet demands on application requirements P P on High Pressure Actuator Inlet pressure rating equals outlet pressure r
21. rs are direct operated backpressure high capacity multi purpose regulators They are designed to handle pressures up to 400 psig 27 6 bar and temperatures up to 250 F 121 C This product provides a fast simple reliable and economical backpressure control in multi purpose applications suitable for different flow media including liquid air and gas Applications include lube oil systems and any application where speed of response is critical minimum differential pressure is a concern or fluid is not free of impurities Tyoe MR108 backpressure regulators with low pressure actuators can be set up to 35 psig 2 4 bar and the high pressure actuator version can be set to 150 psig 10 3 bar for constructions with Fluorocarbon FKM diaphragm and 300 psig 20 7 bar for constructions with Nitrile NBR diaphragm The units are available in 4 sizes NPS 1 through 4 DN 25 through 100 and are available in several end connection configurations to meet demands on application requirements Available with a quick opening cage for quick speed of response and high flow capacity The cage guided metal plug provides superior control and stability The Type MR108 with Steel or Stainless steel body construction has been designed to meet API 614 as required by lube oil manufacturers Features Large Flow Able to pass large flow rates with a minimum pressure buildup Stability The Type MR108 regulator s cage guided metal plug design
22. sure Actuator RELIEF Cy at BUILDUP SPRING RANGE PRESSURE PART NUMBER SETTING NPS 1 DN 25 Body NPS 2 DN 50 Body NPS 3 DN 80 Body NPS 4 7 DN 100 Body COLOR CODE E42006X01 ras ae ee ar oar vo es a GE42906X012 35 2 4 8 16 13 7 15 7 17 0 18 8 34 3 43 8 48 2 i SE42007X0 pa fas 2 es roe foro rea oza aer fora ose GE42907X012 50 3 4 8 02 13 5 15 8 17 0 16 1 32 4 42 7 47 4 25 6 cea 55 to 120 psig 7 34200001 rs sa rae a oz a wr for eo ea faz GE42909X012 75 5 2 7 58 14 2 16 2 17 0 16 7 31 4 42 9 48 2 25 2 en coio200 pig 100 62 792 198 160 ves 164 208 wos aso 226 GE4200X012 Pt es Fer wo res rats on a as ar GE42910X012 150 10 3 12 7 16 0 16 9 17 1 21 5 39 1 46 8 48 2 26 4 47 7 ene 173 175 to 300 psig 48 GE43002x012 fat fra fre fiss free a fres fose ane Tori aa Tess GE43002X012 250 17 2 11 3 15 5 16 8 17 0 19 5 34 2 43 5 47 1 26 4 45 5 65 9 Red 300 207 129 187 174 228 995 482 302 529 711 Shaded areas indicate where pressure conditions exceed the pressure limit of the actuator i N O a N N N N 0o gt KR KR gt w N w o o o o Ol co ad nas oO OD oO i NO Go NI a loloala nin gt N oe 1 ee ee gt P BR LoO M mM ARID K wola w w ow a R ao ao oa wl o w alao nr ololalniales lalala Slol O A
23. t Made at 10 Flow For Type MR108 High Pressure Actuator continued SPRING RANGE PART NUMBER COLOR CODE 25 to 40 psig 1 7 to 2 8 bar 35 to 70 psig 2 4 to 4 8 bar GE42907X012 Green 55 to 120 psig 3 8 to 8 3 bar GE42909X012 White 90 to 200 psig 6 2 to 13 8 bar GE42910X012 Silver 175 to 300 psig 12 1 to 20 7 bar GE43002xX012 Red RELIEF PRESSURE SETTING Cre e a re vm wa a a pfs oe oe ae oo NPS 3 DN 80 Body CAPACITIES IN GPM LPM OF WATER o e aw wo aw re BECOOL Pressure Buildup Over Relief Setting 40 14 f giaj oo K U oO na won wo oro ann oo aw wo vn on peo foe am oe T oe re an we T o f om wo oo 50 om Paw ras a e wo oe ww em on eo an eae Pins Pres 200 sore aso som ow zz ro 20m 260 ror sie rom rao Paso ova soo wee exo zm oso seo wo wn woo v0 veo 200 100 Fsx0 fear aso v0 v0 270 1 a0 NPS 4 7 DN 100 Body 20 810 1190 1140 2240 1630 2310 2940 1140 540 2060 900 3390 1310 1090 1370 1570 1170 1640 2240 1540 2010 3080 2200 3110 4300 2720 4050 4940 as z 510 1070 1090 1460 1400 LPM 1370 1780 2000 1480 2060 2850 1930 2530 4030 2820 4140 5530 3500 5300 Shaded areas indicate where pressure conditions exceed the pressure limit of the actuator 12 Bullet
24. tem operation within these limitations does not eliminate the possibility of damage from external sources or from debris in the flow line The backpressure regulator should be inspected for damage regularly and after any overpressure condition Installation Note Not all codes or regulations will permit these units to be used as final overpressure protection devices Vertical installation with the actuator installed directly above or below the main valve is recommended but for optimal performance the actuator should be installed below the main valve The use of a bleed valve is recommended for liquid installations that require the high pressure actuator to be mounted above the main valve The unit will operate in horizontal installations with actuator on the side however this could result in premature wear of parts Orientation of the two vents should always be down Vents may be rotated after regulator installation to reposition so that the vent screens are down A control line must be installed to allow inlet pressure to register on the actuator s diaphragm The size of the control line is indicated in the Specification sections above and should be installed four to eight pipe diameter before the backpressure regulator and in an area of pipe that is free of turbulence An instruction manual is provided with every regulator shipped Refer to this for detailed installation operation adjustment and maintenance instructions
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