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Type MR105

Figure 6.

Type MR105 Direct-Operated Pressure Reducing Regulator Assemblies (continued)

DETAIL W

NO TRAVEL INDICATOR

DETAIL Y

deTAIL z

APPLY LUBRICANT

(1)

L1 = MULTI-PURPOSE PTFE LUBRICANT

GE38435

1. Lubricants and sealants must be selected such that they meet the temperature requirements.

TYPE MR105 WITH OPTIONAL TRAVEL INDICATOR

SEE DETAIL W

Summary of Contents for MR105

Page 1: ...regulator vents gas or a leak develops in the system service to the unit may be required Failure to correct trouble could result in a hazardous condition Installation operation and maintenance procedures performed by unqualified personnel may result in improper Figure 1 Type MR105 Direct Operated Pressure Reducing Regulators adjustment and unsafe operation Either condition may result in equipment ...

Page 2: ...ent Type Y602 12 Pressure Loaded Spring Case Vent 1 2 NPT Approximate Weights For Type MR105 with Low Pressure Actuator NPS 1 DN 25 86 lbs 39 kg NPS 2 DN 50 116 lbs 53 kg NPS 3 DN 80 165 lbs 75 kg NPS 4 DN 100 174 lbs 79 kg For Type MR105 with High Pressure Actuator NPS 1 DN 25 76 lbs 34 kg NPS 2 DN 50 105 lbs 48 kg NPS 3 DN 80 155 lbs 70 kg NPS 4 DN 100 164 lbs 74 kg Options Visual Travel Indicat...

Page 3: ...0 RF or PN 16 RF CF3M Stainless Steel 1 2 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 Table 1 Body Size and End Connection Style 27 6 bar and temperatures up to 250 F 121 C Large multi purpose regulators provide fast simple reliable and economical pressure control for a numb...

Page 4: ...ppropriate overpressure protection where service conditions could exceed the limits given in the Specifications section and or regulator nameplate Refer to Overpressure Protection section for recommendations on how to prevent service conditions from exceeding those limits Additionally physical damage to the regulator may result in personal injury or property damage due to escaping of accumulated g...

Page 5: ... WCC steel NPT 400 27 6 70 4 8 400 27 6 70 4 8 400 27 6 CL150 RF 245 16 9 245 16 9 245 16 9 CL300 RF 400 27 6 400 27 6 400 27 6 CL600 RF PN 16 RF 245 16 9 245 16 9 245 16 9 PN 16 25 40 RF 400 27 6 400 27 6 400 27 6 CF8M Stainless steel NPT 400 27 6 70 4 8 400 27 6 70 4 8 400 27 6 CL150 RF 225 15 5 225 15 5 225 15 5 CL300 RF 400 27 6 400 27 6 400 27 6 CL600 RF PN 16 RF 225 15 5 225 15 5 225 15 5 PN...

Page 6: ...or copper sulfate in the tubing and the pipeline Apply pipe compound to the external threads of the pipe before installing the regulator Make sure gas flow through the regulator is in the same direction as the arrow on the body Inlet and Outlet connections are clearly marked Note A linear cage is recommended for applications where low flow stability is a concern but it will limit the overall capac...

Page 7: ...rain minimizes the entry of water or other debris through the vent and minimizes vent blockage from freezing precipitation Do not install the Type MR105 in a location where there can be excessive water accumulation or ice formation such as directly beneath a downspout gutter or roof line of a building Even a protective hood may not provide adequate protection in these instances Install the regulat...

Page 8: ...ction Overpressure Protection Warning Personal injury equipment damage or leakage due to escaping accumulated gas or bursting of pressure containing parts may result if this regulator is Overpressured Used with incompatible process fluid Installed where service conditions could exceed the limits given in the Specifications section and on the appropriate nameplate or Where conditions exceed any rat...

Page 9: ...lid resulting in the regulator not locking up if jam nut is not installed and adjusting screw is adjusted completely down The factory setting of the regulator can be varied within the pressure range stamped on the nameplate To change the outlet pressure loosen the jam nut key 72 using a hand wrench not an impact gun turn the adjusting screw key 73 clockwise to increase outlet pressure setting or c...

Page 10: ...upon the severity of service conditions or the requirements of local state and federal regulations Regulators that have been disassembled for repair must be tested for proper operation before being returned to service Only parts manufactured by Emerson should be used for repairing Fisher regulators Restart gas utilization equipment according to normal start up procedures Note To protect against re...

Page 11: ... the travel indicator should also be replaced The Quick Change Travel Indicator Kit includes a travel indicator assembly including all necessary elastomers for the travel indicator The elastomer repair kit does not contain the elastomeric components for the travel indicator assembly 1 Remove the travel indicator assembly by removing the lower indicator fitting key 5 from the body flange key 2 2 Co...

Page 12: ...ant to seals for protection during assembly Use the valve body as a holding fixture during this step and insert a wrench handle or similar tool into the seat ring slots for leverage when tightening the seat ring and cage 8 Remove the upside down body flange key 2 if it was anchored on the body key 1 Coat the cage seating surfaces of the valve body web and the body flange seating surfaces of the va...

Page 13: ... Lift off the upper diaphragm casing key 63 or upper casing welding assembly key 87 6 Unscrew the jam nuts key 48 and remove them from the actuator stem key 40 7 Remove the Belleville spring washer key 49 lower spring guide key 52 and diaphragm plate key 55 from the actuator stem key 40 8 Lift off the diaphragm key 56 from the actuator stem key 40 and inspect it for damage Replace if necessary If ...

Page 14: ...am nuts key 48 onto it Using wrench flats hold the stem and torque the jam nuts individually Tighten to a torque of 12 to 14 ft lbs 16 to 19 N m Note For pressure loaded actuator option skip steps 20 and 21 and proceed to step 22 with upper casing welding assembly key 87 20 Install the upper diaphragm casing key 63 or spring case spacer key 66 assembly while aligning the bolt circle holes in the u...

Page 15: ... line tubing Remove the lower diaphragm casing key 62 by unthreading it from the valve body key 1 Remove stem key 40 from the lower casing by pulling on the end of the stem without threads 11 Remove the wiper ring key 45 detail Z on the threaded end of the lower diaphragm casing key 62 to reach the bearing key 46 and stem O ring key 47 Install the new stem O ring and bearing and put back the wiper...

Page 16: ...mbly key 26 is aligned with valve body inlet 23 Lubricate cap screws key 67 and use them to secure the spring case key 70 to the upper diaphragm casing key 63 Tighten the cap screws to a final torque of 25 to 28 ft lbs 34 to 38 N m Warning Personal injury equipment damage or leakage due to escaping fluid may result if adjusting screw key 73 and jam nut key 72 are not installed properly Also spring...

Page 17: ... NPS 1 DN 25 GE39061X012 NPS 2 DN 50 GE39060X012 NPS 3 DN 80 GE39059X012 NPS 4 DN 100 GE39058X012 CF8M Stainless Steel NACE NPS 1 DN 25 GE39061X022 NPS 2 DN 50 GE39060X022 NPS 3 DN 80 GE39059X022 NPS 4 DN 100 GE39058X022 CF3M Stainless Steel NACE NPS 1 DN 25 GE39061X032 NPS 2 DN 50 GE39060X032 NPS 3 DN 80 GE39059X032 Key Description Part Number 3 Stud Bolt Steel NPS 1 DN 25 4 required 1R2848X0752 ...

Page 18: ...NPS 4 DN 100 24A5640X042 14 Piston Ring PTFE NACE NPS 1 DN 25 14A6786X012 NPS 2 DN 50 14A5675X012 NPS 3 DN 80 14A5660X012 NPS 4 DN 100 14A5645X012 15 Upper Seal NACE Nitrile NBR NPS 1 DN 25 14A6789X012 NPS 2 DN 50 24A5674X012 NPS 3 DN 80 24A5659X012 NPS 4 DN 100 24A5644X012 Fluorocarbon FKM NPS 1 DN 25 14A8187X012 NPS 2 DN 50 25A7413X012 NPS 3 DN 80 25A7376X012 NPS 4 DN 100 25A7468X012 Recommended...

Page 19: ...756106382 Ethylene Propylene EPDM 1C7822X0052 48 Jam Nut 2 required Zinc Plated Steel NACE 1A946324122 49 Belleville Spring Washer NACE GG04933X012 51 Lower Diaphragm Head O ring NACE Nitrile NBR 1P420706992 Fluorocarbon FKM 1L949306382 Ethylene Propylene EPDM 1P4207X0032 Key Description Part Number 15 Upper Seal NACE continued Ethylene Propylene EPDM NPS 1 DN 25 14A6789X022 NPS 2 DN 50 24A5674X06...

Page 20: ...nd High Pressure Actuator Nitrile NBR 1P233206992 Fluorocarbon FKM 1P2332X0012 Recommended spare part Nomex is a mark owned by E I du Pont de Nemours and Co 1 Meets chemical and physical requirements of NACE MR0175 2003 and MR0103 for non pressure loaded applications only It is assumed that this part is not exposed to the sour gas Key Description Part Number 65 Cap Screw 10 required Low Pressure A...

Page 21: ...ricant l3 anti seize compound s multi purpose ptfe thread sealanT GE38435 NOTE KEYS 64 AND 71 ARE USED ONLY FOR PRESSURE LOADED ACTUATORS 1 Lubricants and sealants must be selected such that they meet the temperature requirements 16 64 66 65 63 56 58 51 61 40 17 3 9 29 4 11 12 13 53 65 55 84 26 76 68 71 62 52 69 L3 L1 L1 L1 L1 L1 L1 L1 L1 L1 L1 L1 L1 L1 S S SEE DETAIL V SEE DETAIL X SEE DETAIL Z S...

Page 22: ...ure Reducing Regulator Assemblies continued Detail X 46 L1 L1 L1 60 47 APPLY lubricant or sealant 1 L1 multi purpose ptfe lubricant s multi purpose ptfe thread sealanT GE38435 NOTE KEYS 64 AND 71 ARE USED ONLY FOR PRESSURE LOADED ACTUATORS 48 48 49 Detail v 1 Lubricants and sealants must be selected such that they meet the temperature requirements ...

Page 23: ...1 L1 no travel indicator 15 20 2 16 L1 L1 14 Detail Y Detail Z 47 46 L1 L1 L1 45 APPLY lubricant 1 L1 multi purpose ptfe lubricant GE38435 1 Lubricants and sealants must be selected such that they meet the temperature requirements Type MR105 with optional travel indicator 28 21 6 L1 L1 L1 37 35 8 18 19 22 5 10 23 SEE DETAIL W ...

Page 24: ...intenance of any Emerson Process Management Regulator Technologies Inc product remains solely with the purchaser 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 East and Afric...

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