Emerson MR108 Installation Guide
Contents
1. 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 2010 2014 All Rights Reserved LS Lf EMERSON2. 3 to 2 1 bar 12 to 30 psig 1 0 to 2 4 bar 15 to 35 psig High Pressure Actuator 1 7 to 2 8 bar 25 to 40 psig 2 4 to 4 8 bar 35 to 70 psig 3 8 to 8 3 bar 55 to 120 psig 6 2 to 13 8 bar 90 to 200 psig 12 1 to 20 7 bar 175 to 300 psig Type MR108 Maximum Set pressure Low Pressure Actuator 2 4 bar 35 psig High Pressure Actuator Nitrile NBR and Ethylene Propylene EPDM Diaphragm 20 7 bar 300 psig Fluorocarbon FKM Diaphragm 10 3 bar 150 psig Temperature Capabilities Nitrile NBR 29 to 82 C 20 to 180 F Fluorocarbon FKM 7 to 121 C 20 to 250 F Ethylene Propylene EPDM 29 to 107 C 20 to 225 F Maximum Emergency Casing Pressures Low Pressure Actuator 4 8 bar 70 psig High Pressure Actuator 27 6 bar 400 psig Maximum Inlet Pressures Low Pressure Actuator 4 8 bar 70 psig High Pressure Actuator 27 6 bar 400 psig Maximum Outlet Pressures Low Pressure Actuator 4 8 bar 70 psig High Pressure Actuator 27 6 bar 400 psig Maximum Differential Pressures Low Pressure Actuator 4 8 bar 70 psig High Pressure Actuator 27 6 bar 400 psig Maximum Pressures over Set Pressure to Avoid Internal Parts Damage Low Pressure Actuator 1 4 bar 20 psig High Pressure Actuator 8 3 bar 120 psig Installation Only qualified personnel should install or service a backpressure regulator Backpressure regulators should be installed operated and maintain
3. Installation Guide English June 2014 Introduction This installation guide provides instructions for installation startup and adjustment To receive a copy of the instruction manual contact your local Sales Office or view a copy at www fisherregulators com For further information refer to Type MR108 Instruction Manual Form 5875 D103247X012 P E D Category This product may be used as a pressure accessory with pressure equipment in the following Pressure Equipment Directive 97 23 EC categories It may also be used outside of the Pressure Equipment Directive using sound engineering practice SEP per table below PRODUCT SIZE CATEGORY DN 25 NPS 1 SEP DN 50 NPS 2 Il DN 80 NPS 3 Il DN 100 NPS 4 Il Specifications Available Constructions Type MR108 with low pressure actuator Direct operated large multi purpose backpressure regulator with 0 35 to 2 4 bar 5 to 35 psig pressure range Type MR108 with high pressure actuator Direct operated large multi purpose backpressure regulator with 1 7 to 20 7 bar 25 to 300 psig pressure range Body Sizes and End Connection Styles DN 25 and 50 NPS 1 and 2 NPT CL125 FF CL250 RF CL150 RF CL300 RF CL600 RF and EN PN 16 25 40 RF DN 80 and 100 NPS 3 and 4 CL125 FF CL250 RF CL150 RF CL300 RF CL600 RF and EN PN 16 RF Backpressure Control Ranges Low Pressure Actuator 0 35 to 0 97 bar 5 to 14 psig 0 55 to 1 7 bar 8 to 24 psig 0 8
4. ast and Africa Dubai United Arab Emirates Tel 011 971 4811 8100 For further information visit www fisherregulators com S JM N R D N 7 ae Jl K eeN ANN hs 45 A V2 Se N WA DETAIL Z Type MR108 Assembly Drawings continued 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 DETAIL X DETAIL V 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 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
5. e down Vents may be rotated after regulator installation so that the vent screens are down A control line must be installed to allow inlet pressure to register on the actuator s diaphragm It should be installed four to eight pipe diameters upstream of the regulator and in an area of pipe that is free of turbulence Note It is important that the backpressure regulator be installed so that the vent hole in the spring case is unobstructed at all times For outdoor installations the backpressure regulator should be located away from vehicular traffic and positioned so that water ice and other foreign materials cannot enter the spring case through the vent Avoid placing the backpressure regulator beneath eaves or downspouts and be sure it is above the probable snow level Overpressure Protection Maximum inlet pressures depend upon body end connections materials and temperatures Refer to the nameplate for the maximum inlet pressure of the valve The valve should be inspected for damage after any overpressure condition Fisher backpressure regulators are NOT ASME safety relief valves Startup The backpressure regulator is factory set at approximately the midpoint of the spring range or the pressure requested If a pressure setting other than specified is desired be sure to change the pressure setting by following the Adjustment section With proper installation completed slowly open the upstream and downstream shu
6. ed in accordance with international and applicable codes and regulations and Emerson Process Management Regulator Technologies Inc instructions If using a backpressure regulator on a hazardous or flammable fluid service personal injury and property damage could occur due to fire or explosion of vented fluid that may have accumulated To prevent such 1 The pressure temperature limits in this Installation Guide or any applicable limitation should not be exceeded 2 Maximum set pressure is limited to 10 3 bar 150 psig for constructions with Fluorocarbon FKM diaphragm 3 Not applicable for constructions with Fluorocarbon FKM diaphragm 4 Fluorocarbon FKM is limited to 93 C 200 F hot water 5 Maximum Inlet Outlet and Emergency Casing Pressures for constructions with Fluorocarbon FKM diaphragm are limited to 15 8 bar 230 psig or the body rating limit whichever is lower 6 Ethylene Propylene EPDM is limited to 7 to 121 C 20 to 250 F when used with Low Pressure Actuator www fisherregulators com KS ew zy EMERSON D103247XUS2 Type MR108 injury or damage provide piping or tubing to vent the fluid to a safe well ventilated area or containment vessel Also when venting a hazardous fluid the piping or tubing should be located far enough away from any buildings or windows so to not create a further hazard and the vent opening should be protected against anything that could clog it Personal inju
7. ing Case Spacer Cap Screw Control Spring Upper Spring Seat Spring Case Sealing Washer not shown Jam Nut Adjusting Screw Adaptor Pipe Bushing Pipe Nipple not shown Drain Valve not shown Internal Stiffener Plate Bleed Valve not shown Upper Casing Welding Assembly not shown Type MR108 amp Le X R Pa ST we ci Eb 29 PE A ZAN 6 4 n ae bee cs LON S ay Ral LN 3 5 Ne p Nda AD A 21 i a AUD ARP LT AN la Pr oN AD 16 ia A3 a UASA V7 i 3 9 Figure 1 Type MR108 Assembly Drawings Type MR108 DETAIL W aa i x 20 io 149 DETAIL Y GE38436 Figure 1 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 E
8. ry equipment damage or leakage due to escaping fluid or bursting of pressure containing parts may result if this backpressure regulator is overpressured or is installed where service conditions could exceed the limits given in the Specifications section 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 backpressure regulator could result in personal injury and property damage due to escaping fluid To avoid such injury and damage install the backpressure regulator in a safe location Clean out all pipelines before installation of the backpressure regulator and check to be sure the backpressure regulator has not been damaged or has collected foreign material during shipping For NPT bodies apply pipe compound to the external pipe threads For flanged bodies use suitable line gaskets and approved piping and bolting practices Vertical installation with the actuator oriented up or down is recommended The unit will operate in horizontal installation with actuator on the side however this could result in premature wear of parts Make sure that flow will be in the same direction as that indicated by the body arrow Orientation of the two vents should always b
9. toff valves if applicable Adjustment To change the control pressure loosen the locknut and turn the adjusting screw clockwise to increase pressure or counterclockwise to decrease pressure Monitor the control pressure with a test gauge during the adjustment Tighten the locknut to maintain the desired setting Taking Out of Service Shutdown To avoid personal injury resulting from sudden release of pressure isolate the backpressure regulator from all pressure before attempting disassembly Parts List Key RWN A 12 13 14 15 16 17 20 21 24 25 26 29 30 33 34 38 39 40 41 43 44 45 46 47 48 49 51 52 53 54 55 56 57 58 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 76 81 82 84 85 87 Description Valve Body Body Flange Stud Bolt Gasket Valve Spring Cage Port Seal Seat Ring Piston Ring Upper Seal Valve Plug Cage O ring Valve Plug O ring Adaptor O ring Drive Screw Flow Arrow Vent Hex Nut Pipe Plug NACE Tag not shown Seal Wire not shown Pipe Plug Pipe Plug Stem Actuator Flange Nut Nameplate Lube Fitting Wiper Ring Bearing Valve Stem O ring Jam Nut Spring Washer Lower Diaphragm Head O ring Lower Spring Guide Lower Diaphragm Head Lower Spring Seat Diaphragm Plate Diaphragm Cap Screw or Stud Bolt Hex Nut Bonnet O ring Bonnet Lower Diaphragm Casing Upper Diaphragm Casing Spring Case Spacer O ring Cap Screw Spr
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