Emerson LR125 Data Sheet
Contents
1. 311 1178 Da 1292 357 Tee es a 1 4 15 to 30 psig 1 0 to 2 1 bar Yellow 60 41 96 363 98 372 100 380 103 388 314 1190 336 1272 344 1302 349 1323 S E E ee LRS 120 a55 SS faos TSR Ta 203 1526 413 1562 a22 TSS 426 Ta F100 68 126 47o DSS Tas TSS a08 184 507 407 1541 LS Dars Tas 1703 451 1707 ae ae 1 7 N CA Tao 54 112 425 115 a34 S Tag TOS 450 305 1458 304 1400 Ta TS 207 Den e0 61 122 460 DS Tas TS arz 128 a85 17 1580 Tee Tea Taa 1697 435 Den Papeete eed oe foot 9 Tor os ao zan E rs roa Pron fee ro Fars fras aoe vi aa 124 aeo T a04 ref aes eso T aos 1526 arr re rio 75 96 365 105 396 112 428 119 482 331 1254 35e 1360 385 1458 410 1550 ees eee N N OH 25 to 75 psig 1 7 to 5 2 bar Green 70 0 150 psig 27s 187 187 708 193 791 200 757 206 779 542 2053 606 2005 633 2398 655 2479 e0 122 99 are 115 404 128 405 140 s32 Las 1183 265 1383 424 Dar 465 1761 10 CH 12 On 1 Type LR125 on liquid service with 1 2 NPT Type MR95H Pilot 100 Cage Capacity with internal inlet strainer and Type 112 Restrictor Setting of 4 15 CH 2 Values published in this table are laboratory tested and are presented based on droop negative control deviation only or pressure offset below setpoint Exceeds recom2. 50 3 91 4 91 4 91 4 90 9 147 0 147 0 147 0 146 2 RT ee EEA AEE EAE 5 2 25 to 75 psig 1 7 to 5 2 bar Green 75 100 6 8 14 8 14 8 14 8 14 8 50 5 49 4 49 3 49 9 91 4 91 4 91 4 91 4 147 0 147 0 147 0 147 0 ay ae _200 13 6 14 5 14 8 14 8 14 8 47 7 49 2 48 2 48 4 87 7 90 0 89 5 89 3 141 0 144 7 143 9 143 7 Cee eae 70 to 150 psig 4 8 to 10 3 bar Red 10 3 225 15 3 14 8 14 8 14 8 14 8 44 5 46 2 47 5 47 5 88 2 90 0 90 9 90 9 141 8 144 7 146 3 146 2 1 Type LR125 on liquid service with 1 2 NPT Type MR95H Pilot 100 Cage Capacity with internal inlet strainer and Type 112 Restrictor Setting of 4 2 Values published in this table are laboratory tested and are presented based on droop negative control deviation only or pressure offset below setpoint E Exceeds recommended maximum pressure drop ratio of 0 65 Bulletin 71 2 LR125 Table 11 Capacity Water GPM L min for 1 and 2 in DN 25 and 50 Bodies at Droop Pressure Offset Below Setpoint 2 2 IN DN PRNG OUTLET RE 1 IN DN 25 DN 50 a EE EE 45 3 1 83 314 85 322 87 320 89 336 223 843 254 961 264 1074 305 1154 50 34 so 338 91 345 93 352 95 369 237 897 274 1037 304 1151 324 1226 Ca 1 101 382 103 388 moa 304 706 200 261 969
3. 1007 3812 D eors 4050 3074 es F24 eos 20s or sve ors 2554 60s 2506 275 2200 068 nee 100s 108 100 69 peo a INLET 100 125 150 psig bar psig bar GPM Limin GPM Limin GPM Limin GPM Limin GPM Limin GPM Limin GPM Limin GPM Limin OUTLET PRESSURE S DE Zuo D o o S O Z EA DE 15 to 30 psig 1 0 to 2 1 bar Yellow 25 to 75 psig 1 7 to 5 2 bar Green 70 to 150 psig 4 8 to 10 3 bar Red x ue G D BS 5 Wa is G Ba D N X N e gt ke CH E D amp E D SE Wa 2 E G 02 E Be gt O D D O D D O Es CH CH e FE Ke D T LO O a O gt ke ke A Z N KN Be 02 2 C Wa ge 2 O LO CN e X gt ke a G G b o D d a a P O K o o Be G O gt e O 2 K gt Kl 5 C oO O o D D G G O D ES O kel D o a Kl D K b o G Kl z Kl D 2 o 2 e A o Q 07 L Q 2 Fa be 8S 2 Ce ES Kl D 2 Fa J G o b E bg gt N de CH ue O 2 D Ka a O Le CO o J Wal Ka bh a E x CH 0 CH E 0 E E Q O 6b pes Wal CH 02 O x lt LL 10 TYPE MR95H PILOT Bulletin 71 2 LR125 OPTIONAL
4. High Erosion Resistance DIAPHRAGM Een 17E68 ee 1 OO TEIT TRB ae 17E68 17E68 standard 17E97 17E88 17E68 standard 100 17E97 17E88 1 See Table 1 for structural design ratings and Table 2 for Type MR95H pilot rating Fluorocarbon FKM High Temperature Capability Nitrile NBR Low Minimum Differential Nitrile NBR High Erosion Resistance Fluorocarbon FKM High Temperature Capability Nitrile NBR Low Minimum Differential Nitrile NBR High Erosion Resistance Fluorocarbon FKM High Temperature Capability Nitrile NBR Low Minimum Differential Nitrile NBR High Erosion Resistance Fluorocarbon FKM High Temperature Capability Bulletin 71 2 LR125 Table 7 Flow and Sizing Coefficients for Type MR95H Pilot BODY SIZE WIDE OPEN COEFFICIENT S IEC SIZING COEFFICIENTS 1 Km F 2 Table 8 Type 112 Restrictor Flow Coefficients Ems Table 9 Approximate Weights Including Type MR95H Pilot and Restrictor MAIN VALVE BODY BODY SIZE LBS kg in Im NPT or SWE CL150 RF CL300 RF CL600 RF O3 J 103 47 107 49 110 50 123 56 139 63 145 66 159 72 192 87 Cavitation Sizing Cavitation Region Cavitation may occur Damage to regulator components and piping is possible The Note risk of damage increases as P1 and P2 move down and to the right on the table Cavitation damage can be avoided by dividing the total pressure drop into stages so that the P1 and P2 combination falls int
5. e Travel Indicator Construction Materials Type LR125 Main Valve Body WCC Steel CF8M or CF3M Stainless Steel Bonnet Steel or Stainless Steel Bonnet Bushing Steel or Stainless Steel Cage Stainless steel Spring Stainless steel Top Plug Stainless steel Bottom Plug Stainless steel Internal Inlet Strainer Stainless steel Diaphragm Nitrile NBR or Fluorocarbon FKM O rings Nitrile NBR or Fluorocarbon FKM Flanged Locknut Stainless Steel Backup Rings Polytetrafluoroethylene PTFE Upper Spring Seat Stainless steel Indicator Protector and Cover Plastic Indicator Stem Stainless steel Indicator Fitting Stainless steel Travel Indicator Plug Stainless steel Type MR95H Pilot Body WCC Steel or CF8M Stainless Steel Spring Case WCC Steel or CF8M Stainless Steel Orifice Stainless Steel Diaphragm Neoprene CR or Fluorocarbon FKM Disk Nitrile NBR or Fluorocarbon FKM Mounting Parts Pilot Mounting Pipe Nipple Plated steel or Stainless steel Pipe Fittings Plated steel or Stainless steel Tubing Stainless Steel Type 112 Restrictor Body 15 5 Stainless Steel Groove Valve Stainless steel Retainer Stainless steel Pipe Plug Stainless steel O rings Nitrile NBR or Fluorocarbon FKM 1 The pressure temperature limits in this Bulletin and any applicable standard or code limitation should not be exceeded 2 Ratings and end connections other than ASME standards can usually be provided c
6. 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 ss Manz ageme nt Emerson Process Management Regulator Technologies Inc 2012 2014 All Rights Reserved Pr roc
7. Range Select One Specification Worksheet L 15 to 30 psig 1 0 to 2 1 bar Yellow Application O 25 to 75 psig 1 7 to 5 2 bar Green Specific Use C1 70 to 150 psig 4 8 to 10 3 bar Red Line Size Main Valve Replacement Parts Kit Optional Fluid Type __ O Yes send one diaphragm cartridge and O rings kit to Se i match this order Does the Application Require Overpressure Protection Pilot Replacement Parts Kit Optional EI yese Cl No L Yes send one replacement kit to match this order Pressure Maximum Inlet Pressure Minimum Inlet Pressure Differential Pressure Set Pressure Maximum Flow Regulators Quick Order Guide Readily Available for Shipment Allow Additional Time for Shipment Accuracy Requirements Less Than or Equal To L 5 L 10 120 LI 40 Construction Material Requirements if known 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 40013 Italy Tel 39 051 419 0611 Middle East and Africa Dubai United Arab Emirates Tel 971 4811 81
8. TRAVEL INDICATOR INDICATOR COVER COVER REMOVAL 114 NPT CLEARANCE VENT TYPE 112 RESTRICTOR 1 2 NPT i 1 4 NPT PILOT gt EL CONTROL SUPPLY CONNECTION LINE CONNECTION T D D VALVE TRIM V REMOVAL So l CLEARANCE ERAA00985_B TYPE LR125 WITH TYPE MR95H PILOT Figure 5 Type LR125 Dimensions Table 12 Type LR125 Dimensions DIMENSIONS IN mm BODY SIZE Al RB O NM O T V CL150 RF CL300 RF CL600 RF CL150 RF CL300 RF CL600 RF ER Goud Steel SST 3 62 3 88 7 40 5 40 11 39 2 40 8 10 8 10 2 97 9 40 4 13 104 9 7 25 184 2 7 75 196 9 8 25 209 6 740 5401 11 30 eel se 5 0 EET 5 6 9 00 689 11 65 3 10 818 9 187 2 00 11 00 127 0 133 4 eG eer ee os eer eee 2000 4476 0 2950 207 8 233 2 279 4 5 9 6 3 6 6 13 30 9 33 13 68 3 80 8 66 9 66 3 80 15 00 al a 149 3 158 8 goa eee ee ne PEO 0 2560 Bars 220 0 245 4 381 0 6 9 731 781 14 70 10 47 15 24 5 10 9 52 952 3 80 17 00 176 3 184 2 fog PRE SNE 14 901 308 3 199913331 2378 0 2659 ES 1300 pane 2418 431 8 Ordering Information Carefully review each specification then complete the Ordering Guide on this page If a pilot setpoint is not requested the regulator will be factory set at the approximate midrange Please complete the specifications worksheet at the bottom of the ordering guide on page 12 Ordering G
9. internal parts A s EMERSON Process Management D103575X012 Bulletin 71 2 LR125 Specifications The Specifications section lists the specifications for the Type LR125 regulator Factory specification is stamped on the nameplate fastened on the regulator at the factory Main Valve Body Sizes End Connection Styles and Structural Design Ratings 2 See Table 1 Maximum Inlet Pressures 1 Type LR125 Main Valve See Table 1 Type MR95H Pilot See Table 2 Type 112 Restrictor 1500 psig 103 bar Maximum Outlet Pressure Type LR125 Main Valve See Table 1 Type MR95H Pilot See Table 2 Outlet Control Pressure Ranges See Table 3 Main Valve Plug Travel 1 in DN 25 0 37 in 9 4 mm 2 in DN 50 0 68 in 17 mm 3 in DN 80 0 98 in 25 mm 4 in DN 100 1 19 in 30 mm Main Valve Minimum Differential Pressures See Table 5 Temperature Capabilities 1 See Table 4 Main Valve Flow Direction Up through the center of the cage and down through the cage slots Main Valve Internal Inlet Strainer Sizes 1 in DN 25 12 Mesh 0 0661 in 1 68 mma 2 3 and 4 in DN 50 80 and 100 10 Mesh 0 0787 in 2 mma Regulating Capacities See Table 11 Flow and IEC Sizing Coefficients Type LR125 Main Valve See Table 6 Type MR95H Pilot See Table 7 Type 112 Restrictor See Table 8 Pressure Registration External 1 2 NPT Spring Case Vent Type Y602 12 Approximate Weights See Table 9 Options e Pre piped Pilot Supply
10. the Specifications section are not exceeded Common However the Type MR95H pilot should be oriented so methods of external overpressure protection include that the pilot spring case vent is pointed down Otherwise relief valves monitoring regulators shutoff devices make sure the vent is protected so that rain moisture and series regulation Regulator operation within insects or any debris will not accumulate inside or block ratings does not prevent the possibility of damage from the vent assembly When installed indoors install remote external sources or from debris in the pipeline Install venting of the pilot spring case as required by applicable additional strainer or filter upstream of the regulator for codes and regulations applications with high levels of debris Bulletin 71 2 LR125 CAVITATION PREDICTION 150 ff 135 9 3 120 8 3 105 7 2 90 a 6 2 75 5 2 psig bar 60 4 1 OUTLET PRESSURE P2 45 3 1 30 2 1 151 1 0 30 60 90 120 150 180 210 240 270 300 2 1 4 1 6 2 8 3 10 3 12 4 14 5 16 5 18 6 20 7 INLET PRESSURE P1 psig bar LT CONTINUOUS SERVICE REGION TT INTERMITTENT SERVICE REGION EE FULL CAVITATION REGION Figure 4 Cavitation Sizing for Water Table 5 Main Valve Minimum Differential Pressures MAIN VALVE MINIMUM DIFFERENTIAL PERCENT OF CAPACITY Cu w o Sateeeeen e eng en Nitrile NBR Low Minimum Differential 25 Nitrile NBR
11. 00 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 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
12. Bulletin 71 2 LR125 November 2014 Type LR125 Pressure Reducing Liquid Regulator e Rugged design e Reliable e Thoroughly tested e Internally actuated e Compact 1 2 3 4 in body sizes L B ex E e Recommended for water and oil applications e Full SST construction available for harsh environments e API 614 Compliant Figure 1 Type LR125 Pressure Reducing Liquid Regulator Introduction Features and Benefits The Type LR125 pilot operated pressure reducing Tight Shutoff The Type LR125 uses a diaphragm regulator is designed for liquid industrial commercial and metal plug eliminating the disadvantages of applications The Type LR125 provides smooth flexible element style regulators When open the operation tight shutoff and long life Its internally metal plug deflects particles and debris away from actuated metal plug eliminates disadvantages the diaphragm The result is enhanced resistance to associated with flexible element style regulators and particle erosion which provides excellent shutoff over the specially engineered flow path deflects debris an extended life When closed loading pressure and protecting the seat from damage and erosion The the main spring push the diaphragm onto the tapered Type LR125 is used in conjunction with a Type MR95H edged seat on the cage pilot and Type 112 restrictor An internal inlet strainer prevents large particles from entering the main valve limiting damage to
13. ESSURE LOADING PRESSURE DIAPHRAGM MAIN SPRING DIAPHRAGM AND PLUG ASSEMBLY INTERNAL STRAINER TYPE LR125 WITH TYPE MR95H PILOT AND TYPE 112 RESTRICTOR Figure 3 Type LR125 Operational Schematic B Powder Paint Coating Carbon steel body is powder paint coated providing superior impact abrasion and corrosion resistance Pilot Type Description Type MR95H High pressure pressure reducing pilot for 15 to 150 psig 1 0 to 10 3 bar outlet pressures Designed to handle inlet pressures up to 300 psig 20 7 bar Principle of Operation As long as the outlet control pressure is above the outlet pressure setting the pilot valve plug or disk remains closed Figure 3 Force from the main spring in addition to inlet pressure bleeding through the restrictor provide downward loading pressure to keep the main valve diaphragm and plug assembly tightly shutoff When the outlet pressure decreases below the pilot outlet pressure setting the pilot plug or disk assembly opens Loading pressure bleeds downstream through the pilot faster than it can be replaced through the supply line This reduces loading pressure on top of the main valve diaphragm and plug assembly and lets the unbalanced force between inlet and loading pressure overcome the main spring force to open the Type LR125 diaphragm and plug assembly As the outlet pressure rises toward the outlet pressure setting it compresses the pilot diaphr
14. agm against the pilot control spring and lets the pilot valve plug or disk close Loading pressure begins to build up on the Type LR125 diaphragm and plug assembly The loading pressure along with force from the main spring pushes the diaphragm and plug assembly onto the tapered edge seat producing tight shutoff Bulletin 71 2 LR125 Table 1 Type LR125 Main Valve Body Sizes End Connection Styles Structural Design Ratings and Maximum Operating Inlet Pressures STRUCTURAL DESIGN MAXIMUM OPERATING MAIN VALVE BODY SIZE MAIN VALVE END CONNECTION STYLE 2 RATING 3 INLET PRESSURE NPT or SWE 1 and 2 in only ee WCC Steel endzn ony 0 ae e p ae or 1 The pressure temperature limits in this Bulletin and any applicable standard or code limitation should not be exceeded 2 Ratings and end connections for other than ASME standard can usually be provided Contact your local Sales Office for assistance 3 Maximum cold working pressure CWP per ASME B16 34 or product Bulletin limit whichever is lowest Temperature may decrease these maximum pressures 4 Not available for 4 in DN 100 body size 1 2 3 and 4 25 50 80 and 100 Table 2 Type MR95H Pilot Maximum Cold Working Pressure 1 2 Stainless steel 300 psig 20 7 bar 300 psig 20 7 bar 1 The pressure temperature limits in this Bulletin and any applicable standard or code limitation should not be exceeded 2 Temperature and or the body end connection may de
15. crease these maximum pressures Table 3 Outlet ae Pressure Ranges ae Ge PRESSURE RANGE SPRING WIRE DIAMETER SPRING FREE LENGTH SPRING PART NUMBER AND COLOR Eege to 30 1 0 to 2 1 E l s ERCA04288A0 Yellow Type MR95H 25 to 75 1 7 to 5 2 l l ERAA01910A0 Green 70 to 150 4 8 to 10 3 0 283 7 19 ERAA01911A0 Red Table 4 Diaphragm Material Selection Information Po 17E68 NITRILE NBR 17E97 NITRILE NBR 17E88 FLUOROCARBON FKM Liquid Temperature 20 to 150 F 29 to 66 C O to 150 F 18 to 66 C 0 to 250 F 18 to 121 C Best for low pressure Best for abrasive or Best for high temperature erosive service applications applications General Applications differential and cold temperature service applications Heavy Particle Erosion Excellent 1 Fluorocarbon FKM is limited to 200 F 93 C in hot water Installation Overpressure Protection The robust design of the Type LR125 allows this regulator Overpressuring any portion of a regulator or associated to be installed indoors or outdoors This regulator equipment may cause personal injury leakage is designed to withstand the elements The powder or property damage due to bursting of pressure paint coating protects regulator against minor impacts containing parts Provide appropriate pressure relieving abrasions and corrosion When installed outdoors or pressure limiting devices to ensure that the limits in the Type LR125 does not require protective housing
16. esting Emerson Process Management Regulator Technologies Inc Emerson state of the art flow laboratory allows thorough testing of all new designs Tests are conducted on Fisher branded regulators for performance features such as flow strength shutoff and material compatibility E Easy In Line Maintenance Top entry design reduces maintenance time Trim parts can be inspected cleaned and replaced without removing the body from the pipeline No special alignment is required when replacing the diaphragm O rings instead of gaskets reducing maintenance and assembly time In Service Travel Indicator The optional travel indicator responds to the precise movement of the diaphragm and plug assembly and shows the actual valve position The travel indicator makes in service inspection and troubleshooting easy Also it can be used for remote alarming and monitoring stem position Versatility The Type LR125 uses the E body making available the standard construction materials and end connections ASME and EN used by other E body regulators and control valves Type MR95H can handle inlet pressures up to 300 psig 20 7 bar and outlet pressures from 15 to 150 psig 1 0 to 10 3 bar Easy to Maintain The pilot is designed to allow quick and simple in line trim inspection and parts replacement Bulletin 71 2 LR125 TYPE 112 RESTRICTOR SUPPLY LINE M1215 INLET PRESSURE El OUTLET PRESSURE ATMOSPHERIC PR
17. mended maximum pressure drop ratio of 0 65 continued LR125 Table 11 Capacity Water GPM L min for 3 and 4 in DN 80 and 100 Bodies at Droop Pressure Offset Below Bulletin 71 2 Setpoint 2 continued 1506 506 HES 938 4 IN DN 100 672 2542 690 2612 10 3865 1050 3974 1080 4089 1110 4207 560 2110 578 2188 838 3172 870 3202 900 3408 e30 3519 azo eo sro oe sro a re en ae r er 653 2471 696 2635 804 3385 975 3601 1050 3974 1120 4238 81 e53 3226 Jeo Tanna Tas 4701 1300 4956 1372 5102 Daar Ts 24 3890 4087 e 3 3372 385 3491 996 3771 1056 3998 1345 5091 1483 5614 1602 6065 1699 6431 3 IN DN 80 2658 2076 2471 2811 3016 2047 2566 2680 2895 2188 2680 3190 3737 2295 2786 2017 548 2076 s63 2133 632 a148 857 3245 882 3339 906 3430 12 24 oean a9 EE EREECHEN A S lt Sl E lk KS IS SI Ge oy Si 7 Ze C LE re e Oo Se TA 2 Se S di C 2 z NIIS NINIAN Qlallal ala NIS lui il Si i SINIS r led lell o IES LO l N w l wg w l weg w MIN D S N d lb S lO S 2 S S S S S 7 E N S S S Z Si A 2 S Z AI ote E Z S S 3 w w weg w weg lo lis ola 0 Med og el ac EC Ked Lei ee E T T lang kel all eel Kal ll bw e q 2 2 kel eg kel eg NIN 533 5 T37 19 074 1957 242 a 4 1 573 2171 626 2370 Las Tana Tas Tan 022 3401
18. o the No Cavitation Region at every stage The cavitation sizing graph in Figure 4 applies to water only For cavitation sizing for other liquids contact your local Sales Office Use Figure 4 to determine cavitation sizing of Capacity Information Type LR125 The Cavitation Prediction Curve depicts Note P1 and P2 combinations where cavitation is likely to occur The curve shape was determined through Flow capacities are laboratory verified analysis and lab confirmation on water Determine the therefore regulators may be sized for desired inlet pressure and outlet pressure of the system 100 flow published capacities It is not and find the intersection of those values on the graph necessary to reduce published capacities No Cavitation Region Cavitation is not expected The capacity information on the following pages is based in this region Damage to regulator components and on four droop 10 20 30 and 40 Droop is piping is highly unlikely as a result of cavitation the negative control deviation or pressure offset below Note the setpoint of the regulator Table 10 shows Cy values at different droop and EEN EE selected inlet pressures and outlet pressure settings damage and voids the warranty if the product is used within the Cavitation Table 11 shows the liquid regulating capacities of the Region see Figure 4 Type LR125 regulator at selected inlet pressures and outlet pressure settings Flows are in gallon
19. ontact your local Sales Office 3 Nominal sieve opening High Accuracy Multiple control pressure ranges Debris Protection The specially engineered flow inherent to pilot operated pressure regulator design path along with the metal plug allows flow through the provide the Type LR125 with tight and accurate control regulator without seat impingement The addition of an l Oo Long Life The robust design of the Type LR125 with internal inlet strainer prevents large particles from entering its metal plug and specially engineered flow path allows the regulator minimizing damage to intemal parts flow through the regulator without seat impingement The diaphragm design eliminates the possibility of offered by Type MR95H pilot and lower accuracy class taking a set a common problem with flexible element Wws092 TYPE MR95H PILOT W7344 TYPE LR125 PRESSURE REDUCING REGULATOR Figure 2 Type LR125 Features and Benefits TRIM PACKAGE TYPE MR95H PILOT Bulletin 71 2 LR125 d n only W7345 style regulators To prevent damage the diaphragm is O O ring Design The Type LR125 uses elastomer fully supported in both the open and closed positions These features enable the Type LR125 components to work longer with less wear and tear Full Usable Capacity Fisher branded regulators are laboratory tested One hundred percent of the published flow capacity can be used with confidence Thorough Laboratory T
20. s per minute GPM and liters per minute L min of water Bulletin 71 2 LR125 Table 10 C1 at Droop Pressure Offset Below Setpoint 2 SPRING OUTLET RANGE AND PRESSURE INLET 1 IN DN 25 2 IN DN 50 3 IN DN 80 4 IN DN 100 COLOR sig bar psig bar 10 20 30 40 10 20 30 40 10 20 30 40 10 20 30 40 _ e eo ai fiee ee Dwr EE EE ees 1 4 15 to 30 psig 1 0 to 2 1 bar Yellow 60 4 1 14 8 14 8 14 8 14 8 48 5 50 7 50 7 50 4 91 4 91 4 91 4 91 4 147 0 147 0 147 0 147 0 60 41 14 8 14 8 14 8 14 8 50 6 60 8 0 8 50 8 91 4 O14 O14 91 4 147 01 147 0 147 0 147 0 eo ter ae 148 ae ciaar 50 8 50 8 tests 91 4 ora E 147 0 1470 ar o taro 100 6 8 14 8 DS TR 14 8 47 6 1508 50 6 49 8 91 4 Taa 91 4 91 4 147 0 447 0 147 0 147 0 T 80 5 4 14 8 14 8 14 8 14 8 50 8 50 8 50 8 50 5 91 4 91 4 91 4 91 4 147 0 147 0 147 0 147 0 90 6 1 14 8 14 8 14 8 14 8 50 8 50 8 50 8 50 3 91 4 91 4 91 4 91 4 147 0 147 0 147 0 147 0 80 5 4 14 8 14 8 14 8 14 8 49 0 50 1 49 9 49 7 91 4 91 4 91 4 91 4 147 0 147 0 147 0 147 0 3 4 100 6 8 14 8 14 8 14 8 14 8 49 1 50 1 50 0 49 8 91 4 91 4 91 4 91 4 147 0 147 0 147 0 147 0 150 10 2 14 8 14 8 14 8 14 8 49 3 50 0 50 2
21. uide Body Size Select One O 1 in DN 25 O 2 in DN 50 O 3 in DN 80 O 4 in DN 100 Body Material and End Connection Style Select One WCC Steel Body L NPT Available in 1 and 2 in bodies only L SWE Available in 1 and 2 in bodies only O CL150 RF L CL300 RF L CL600 RF O PN 16 25 40 RE Not available in 4 in body specify rating CF8M Stainless Steel Body O NPT Available in 1 and 2 in bodies only L CL150 RF L CL300 RF L CL600 RF O PN 16 25 40 RE Not available in 4 in body specify rating Main Valve Diaphragm Material Select One L 17E68 Nitrile NBR low minimum differential capability standard L 17E97 Nitrile NBR high erosion resistant L 17E88 Fluorocarbon FKM high temperature capability Main Valve O ring Material Select One L Nitrile NBR standard O Fluorocarbon FKM Travel Indicator Select One L No standard L Yes Inlet Body Tap Select One L Inlet body tap only standardi L Inlet body tap with pre piped pilot supply L Inlet outlet body taps only L Inlet outlet body taps with pre piped pilot supply and pilot bleed KKK Bulletin 71 2 LR125 Ordering Guide continued Pilot Diaphragm Material Select One L Neoprene CR standard L Fluorocarbon FKM Pilot Valve Plug Material Select One L Nitrile NBR standard L Fluorocarbon FKM Type MR95H Pilot Outlet Pressure
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