Emerson 627 Series Commercial/Industrial Regulators Instruction Manual
Contents
1. 85 84 82 29 r N N aN aN mine p SI 4 D B L is Sa Z N DDA 4 lt ICANT L1 MULTI PURPOSE LITHIUM POLYMER TYPE GREASE L2 EXTREME LOW TEMPERATURE BEARING GREASE PARTS NOT SHOWN 3 1 Lubricants must be selected such that they meet the temperature requirements Figure 12 Type 627H Regulator Assembly 33 30 ja i 87 N UN Se YT SIT gt NN 6314 MIN RER FE Gage earl TB NE AGE LAS NS 49 ANS WY NA SS 15 rat 0402 18 0 02 Go 3 L2 L2 L2 JORE E S LS OGC L2 L1 36 35 34 32 29 hou H J LLA SSS IJE J L ESS 7 LA A l Al u ey V2 K V k ZI LILL LLD ILLI L gt ER DD N Nr LN NL J N KI AN a gt NE N XN 627 Series OIA 8 8 L2 SK H NK N ef ITEA A WAXXXA L BB EEE x m 7 ne 97 0 0960 2 B 3 L2 L2 L2 L2 APPLY LUBRICANT L1 MULTI PURPOSE LITHIUM POLYMER TYPE GREASE ERATURE BEARING GREASE L2 EXTREME LOW TEMP PARTS NOT SHOWN 3 1 Lubricants must be selected such that they meet the temperature requirements Figure 13 Type 627HM Regulator Assembly IN OVO AA2. A QOOOVOOE 627 Series 29 34 36 35 33 26 32 18 APPLY LUBRICANT NW 2 10 13 L2 14 17 6 r Figure 9 Type 627LR Regulator Assembly L2 L1 627 Series L1 060 VHE APPLY LUBRICANT N IH aw i a S 2 N SS A AI D TI L N NETA RO 14 17 050 1 L2 IL 702 COGI L2 L1 MULTI PURPOSE LITHIUM POLYMER TYPE GREASE L2 EXTREME LOW TEMPERATURE BEARING GREASE Figure 10 Type 627M Regulator Assembly ms th JAS 44 L2 L1 627 Series 29 34 36 35 33 26 32 18 56 44 L2 ER AA Sara 4 ut ann Pp Ke La je 0666 L2 S 14 ADASA AD AD 10 13 L2 L2 RX N D 27 22 21 28 L1 15 L2 Zz 4210 8 O0 SuT 5 5 w a 3 m Lll DHO y J5kZ E G Eu Figure 11 Type 627MR Regulator Assembly 627 Series
3. L1 627 Series Industrial Regulators Emerson Process Management Regulator Technologies Inc USA Headquarters McKinney Texas 75069 1872 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 For further information visit www fisherregulators com Natural Gas Technologies Emerson Process Management Regulator Technologies Inc USA Headquarters McKinney Texas 75069 1872 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 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 a
4. 17 9 250 17 2 2000 138 2000 138 1600 66 2 960 66 2 460 BIEZ 320 22 1 10B3077X012 Green 100 6 9 2000 138 950 65 5 450 31 1 260 17 9 140 9 7 110 7 6 125 8 6 2000 138 1500 103 670 46 2 400 27 6 190 13 1 150 10 3 30 2 1 175 12 1 2000 138 2000 138 1000 69 0 610 42 1 300 20 7 220 15 2 200 13 8 2000 138 2000 138 1200 82 7 760 52 4 360 24 8 260 17 9 250 17 2 2000 138 2000 138 1600 110 970 66 9 460 SZ 320 22 1 100 6 9 1500 103 700 48 3 330 22 8 200 13 8 120 8 3 108 74 125 8 6 2000 138 1300 89 6 560 38 6 340 23 4 180 12 4 140 9 7 40 2 8 175 12 1 2000 138 1800 124 1000 69 0 550 37 9 290 20 0 220 15 2 200 13 8 2000 138 2000 138 1200 82 7 730 50 3 350 24 1 250 17 2 250 17 2 2000 138 2000 138 1600 110 970 66 9 460 SM led 320 22 1 1 The internal relief performance values are obtained by removing the disk assembly 2 For inlet pressures in excess of 1000 psig 69 0 bar refer to the maximum body and disk pressure ratings in the Specifications section 3 For pressure settings under 10 psig 0 69 bar inlet pressure should be limited to approximately 100 psig 6 9 bar so the setpoint adjustment can be obtained Shaded areas indicate maximum inlet pressures allowed during system malfunction only Table 1 gives the maximum inlet pressure for normal regulator operation continued relieving or pressure limiting device must be provided by the user for the Types 627 627H 627M and 627HM regulators if the inlet pressure can exceed
5. 627LR or 627MR only Fluorocarbon FKM For Types 627R 627LR and 627MR only Spring Case For Type 627 627R or 627LR Aluminum Ductile iron Steel Stainless steel Tvpes 627 and 627R oniv Spring Case continued For Tvpe 627M or 627MR Ductile iron Steel For Tvpe 627H or 627HM Steel Stainless steel Type 627H only Recommended spare part 16 Part Number 10B7454X012 1B2905X0012 10B3098X012 10B3098X022 10B3098X032 10B3098X102 28B8832X012 10B7449X012 10B3069X012 10B8735X012 10B3068X012 10B8736X012 12B0178X012 10B8736X022 10B8735X042 10B3068X022 10B3069X032 1D666428982 10B3071X012 12B0175X012 10B7446X012 10B7450X012 10B6757X012 1B541327022 1J108506992 1J1085X0042 40B3086X012 30B3055X012 30B3102X012 30B3102X092 30B3055X012 30B3102X012 30B3102X012 30B3102X092 Key 30 31 32 33 34 35 36 37 43 44 45 46 47 48 49 50 51 52 58 67 72 Description Screened Vent Assembly Plastic Lower Spring Seat Plated steel For Type 627 or 627M For Type 627R 627LR or 627MR Control Spring Plated steel 5 to 20 psig 0 34 to 1 4 bar Yellow 15 to 40 psig 1 0 to 2 8 bar Green 35 to 80 psig 2 4 to 5 5 bar Blue 70 to 150 psig 4 8 to 10 3 bar Red 140 to 250 psig range 9 7 to 17 2 bar Blue used for Type 627H or 627HM 240 to 500 psig range 16 5 to 34 5 bar Red used for Type 627H or 627HM Upper Spring Seat
6. KEY 4 Noe BODY DISK KEY 1 ASSEMBLY KEY 9 STEM BACK UP RINGS KEY 12 l STEM O RING KEY 11 STEM GUIDE KEY 8 a STABILIZER BOOST BODY PITOT TUBE KEY 6 AND TAB FOR KE TVPE 627 ONLV CAP SCREW KEY 3 ORIFICE KEV 2 TVPES 627 627H 627R AND 627LR BLOCKED THROAT BACK UP RINGS KEV BLOCKED THROAT KEY 43 W4791 Sel Q _ BLOCKED THROAT O RINGS KEY 44 TYPES 627M 627HM AND 627MR Figure 5 Stem Assemblies The disk assembly and orifice can be inspected removed and replaced without removing the regulator body from the line connections Refer to the Body Area Maintenance Procedures Body Area Maintenance Procedures These procedures are for gaining access to the disk assembly orifice diaphragm casing O ring and stem assembly All pressure must be released from the diaphragm casing before performing these steps While using the following procedures refer to Figures 7 through 13 for key number locations Replacing the Disk Assembly or Orifice 1 To inspect and replace the disk assembly key 9 or orifice key 2 remove the cap screws key 3 Figure 5 and separate the diaphragm casing key 5 from the body key 1 2 Inspect and if necessary remove the orifice key 2 If removed coat the threads of the replacement orifice with lubricant and torque to 25 foot pounds 34 Nem 3 Inspect the disk assembly key 9 and
7. Plated steel Locknut Plated steel Adjusting Screw Plated steel For Tvpe 627 627M 627H or 627HM For Tvpe 627R 627LR or 627MR Adjusting Screw Cap Plastic Spring Case Cap Screw Plated steel 8 required For Aluminum or ductile iron diaphragm case For Steel diaphragm case For Stainless steel case and bodv For Aluminum case and SST bodv For Tvpe 627H HM steel diaphragm case For Tvpe 627H Stainless steel case and bodv Blocked Throat For Tvpe 627M 627HM or 627MR oniv Stainless steel Blocked Throat O ring Nitrile NBR For Tvpe 627M 627HM or 627MR only 2 required Fluorocarbon FKM For Tvpes 627M and 627MR oniv Blocked Throat Back up Ring For Tvpe 627M 627HM or 627MR oniv PTFE 2 required Diaphragm Head Cap Screw Steel For Tvpe 627 or 627M For Tvpe 627H or 627HM Relief Seal Retainer For Tvpe 627R 627LR or 627MR oniv Stainless steel Guide Retainer O ring Nitrile NBR For Type 627R 627LR or 627MR only Fluorocarbon FKM For Types 627R 627LR and 627MR only Relief Indicator For Tvpe 627R 627LR or 627MR oniv Rubber not shown Diaphragm Limiter For Tvpes 627H and 627HM oniv Diaphragm Limiter O ring For Types 627H and 627HM only Pusher Post O ring 2 required For Types 627H and 627HM only Pipe Plug Zinc Drive Screw 18 8 Stainless steel Pipe Plug Zinc plated steel Part Number 10B3093X012 1D666625072 20B3073X012 10B3076X012 10B3077X012 10B3078X012 10B3079X012 10B3078X012 10B3079
8. Refer to Figures 7 through 13 for key number locations pressure to prevent an overpressure condition on the diaphragm of the regulator In order to avoid an overpressure condition and possible equipment damage pressure gauges should always be used to monitor pressures during startup 1 Slowly open the upstream shut off valve Slowly open the downstream shut off valve Check all connections for leaks A N Make final control spring adjustments according to the adjustment procedures Adjustment The range of allowable pressure settings is marked on the nameplate If a pressure setting beyond this range is necessary substitute the appropriate regulator control spring Change the nameplate to indicate the new pressure range Before increasing the setting refer to Table 1 2 3 or 4 Review the pressure limits for the control spring range being used and be certain that the new pressure setting will not result in an overpressure condition Note Always use a pressure gauge to monitor pressure when making adjustments 627 Series Refer to Figures 7 through 13 for key number locations 1 Remove the adjusting screw cap key 36 2 Loosen the locknut key 34 3 Increase the outlet pressure setting by turning the adjusting screw key 35 clockwise Decrease the outlet pressure setting by turning the adjusting screw counterclockwise 4 When the desired pressure is obtained hold the adjusting screw key
9. l DIAPHRAGM PUSHER POST HEAD CAP O RING KEY 52 SCREW KEY 46 W5433 1 TYPES 627H AND 627HM Figure 6 Diaphragm Assemblies 7 Apply lubricant to a replacement diaphragm casing O ring key 4 Figure 7 8 9 or 12 and install it onto the boost body key 6 Skip to step 14 8 For the Type 627 or 627H regulators be sure to insert the pitot tube tab into the outlet side of the bodv see Figure 7 or 12 Skip to step 14 Perform steps 9 through 19 for Tvpes 627M 627HM and 627MR Regulators oniv 9 Use steps 10 through 14 to remove and replace the stem assembiv 10 To remove the blocked throat kev 43 insert a screw driver blade into the groove provided in the throat and pry it out of the diaphragm casing kev 5 Inspect and replace parts as necessarv 11 Inspect and if necessarv replace the blocked throat O rings kev 44 Figure 5 and back up rings kev 45 Figure 5 12 Applv lubricant to replacement blocked throat O rings kev 44 and back up rings kev 45 13 Applv lubricant to the replacement stem O ring kev 11 and stem back up rings kev 12 and install them on the stem kev 10 14 For assembiv lubricate the stem kev 10 and insert the diaphragm casing kev 5 and hook it on the lever kev 15 15 Lubricate the contact points of the lever kev 15 16 Insert parts into the diaphragm casing kev 5 that were removed in steps 5 and 6 or step 10 see Figure 5 17 Install t
10. 1 370 25 5 170 11 7 130 9 0 i 15 1 0 125 8 6 2000 138 1900 131 810 55 8 480 33 1 220 15 2 160 11 0 10B3076X012 175 12 1 2000 138 2000 138 1100 75 8 670 46 2 320 22 1 220 15 2 Yellow 200 13 8 2000 138 2000 138 1300 89 6 770 53 1 360 24 8 260 17 9 250 17 2 2000 138 2000 138 1600 110 960 66 2 450 31 0 320 22 1 60 4 1 850 58 6 490 33 8 210 14 5 130 9 0 80 5 5 65 4 5 100 6 9 2000 138 1300 89 6 600 41 4 360 24 8 170 11 7 120 8 3 20 14 125 8 6 2000 138 1800 124 800 55 2 480 33 1 220 15 2 160 11 0 175 12 1 2000 138 2000 138 1100 75 8 670 46 2 320 22 1 220 152 200 13 8 2000 138 2000 138 1300 89 6 770 53 1 360 24 8 260 17 9 250 17 2 2000 138 2000 138 1600 110 960 66 2 450 31 0 320 22 1 60 4 1 1000 69 0 380 26 2 210 14 5 130 9 0 80 5 5 65 4 5 100 6 9 2000 138 1300 89 6 590 40 7 350 24 1 170 11 7 120 8 3 15 1 0 125 8 6 2000 138 1800 124 800 55 2 470 32 4 220 15 2 160 11 0 175 12 1 2000 138 2000 138 1100 75 8 640 44 1 320 22 1 220 15 2 200 13 8 2000 138 2000 138 1300 89 6 780 53 8 370 25 5 260 17 9 250 17 2 2000 138 2000 138 1600 66 2 960 66 2 450 31 0 320 22 1 60 4 1 630 43 4 200 13 8 150 10 3 100 6 9 70 4 8 65 4 5 100 6 9 2000 138 1200 82 7 550 37 9 330 22 8 160 11 0 120 8 3 125 8 6 2000 138 1700 117 760 52 4 450 31 1 210 14 5 160 11 0 15 to 40 psig 20 t4 175 121 2000 138 2000 138 1100 75 8 630 434 320 221 220 152 1 0 to 2 8 bar 200 13 8 2000 138 2000 138 1300 89 6 770 531 360 24 8 260
11. 4 9 11 12 23 28 and 48 R627RX00A12 Type 627R Parts Kit with Stainless steel Nitrile NBR trim include keys 4 9 11 12 23 28 and 48 R627RX00S12 1 Body Ductile iron 1000 psig 69 0 bar maximum inlet pressure 3 4 NPT 30B3046X012 1 NPT 30B3048X012 2 NPT 30B3096X012 Ductile iron Long Body 1000 psig 69 0 bar maximum inlet pressure 1 NPT 39B2451X012 2 NPT 39B0414X012 Steel 2000 psig 138 bar maximum inlet pressure 3 4 NPT 30B3050X012 1 NPT 30B3051X012 2 NPT 30B7452X012 Steel Long Body 2000 psig 138 bar maximum inlet pressure 1 NPT 39B0412X012 2 NPT 39B0415X012 Steel CL600 RF flanged 1500 psig 103 bar maximum inlet pressure NPS 1 DN 25 40B6754X012 NPS 2 DN 50 40B6756X012 Steel CL300 RF flanged 750 psig 51 7 bar maximum inlet pressure NPS 1 DN 25 41B8978X012 NPS 2 DN 50 41B8080X012 1 Bodies can be used for both standard and NACE constructions Key Description 1 Body continued Steel CL150 RF flanged 290 psig 20 0 bar maximum inlet pressure NPS 1 DN 25 NPS 2 DN 50 Steel BWE 1000 psig 69 0 bar maximum inlet pressure NPS 1 DN 25 NPS 2 DN 50 Steel PN 16 25 40 RF 580 psig 40 0 bar maximum inlet pressure NPS 1 DN 25 NPS 2 DN 50 Stainless Steel NPT 2000 psig 138 bar maximum inlet pressure 3 4 NPT 1 NPT 2 NPT Stainless Steel CL150 RF flanged 275 psig 18 9 bar maximum inlet pressure NPS 1 DN 25 NPS 2 DN 50 Stainless Steel2 CL300 RF flanged 720 psig 49 6 b
12. 720 49 6 340 23 4 250 172 250 17 2 2000 138 2000 138 1600 110 940 64 8 450 31 0 320 22 1 125 8 6 1400 96 5 820 56 5 400 27 6 230 15 9 150 10 3 140 9 7 150 10 3 2000 138 1400 96 5 650 44 8 370 25 5 210 14 5 170 11 7 50 3 4 175 12 1 2000 138 1900 131 700 48 3 530 36 5 270 18 6 210 14 5 200 13 8 2000 138 2000 138 1100 75 8 670 46 2 330 22 8 240 16 5 35 to 80 psig 250 17 2 2000 138 2000 138 1500 103 920 63 4 430 29 6 320 22 1 2 4 to 5 5 bar 125 8 6 900 62 1 450 31 0 270 18 6 190 13 1 140 9 7 130 9 0 150 10 3 1700 117 1100 75 8 540 37 2 300 20 7 190 13 1 160 11 0 10B3078X012 60 4 1 175 12 1 2000 138 1700 117 780 53 8 470 32 4 250 17 2 200 13 8 Blue 200 13 8 2000 138 2000 138 1000 69 0 610 42 1 310 21 4 230 159 250 17 2 2000 138 2000 138 1400 96 5 880 60 7 420 29 0 310 214 150 10 3 1200 82 7 850 58 6 430 29 6 250 17 2 170 11 7 160 11 0 70 4 8 175 12 1 2000 138 1400 96 5 670 46 2 400 27 6 230 15 9 190 13 1 200 13 8 2000 138 2000 138 920 63 4 550 37 9 280 19 3 230 15 9 250 17 2 2000 138 2000 138 1300 89 6 830 57 2 400 27 6 310 21 4 150 10 3 800 55 2 500 34 5 300 20 7 200 13 8 160 11 0 150 10 3 80 55 175 12 1 1500 103 12
13. if necessary remove the hair pin clip key 13 that holds the disk assembly key 9 in place If replacing the disk assembly is the only maintenance required skip to step 16 Replacing the Stem Assembly If it is necessary to perform maintenance on the stem assembly continue with steps 4 through 8 and 15 through 19 for Types 627 627H 627R and 627LR regulators or steps 9 through 19 for Types 627M 627HM and 627MR regulators Perform steps 4 through 8 for Types 627 627H 627R and 627LR Regulators only 4 Use steps 5 through 8 to remove and replace the stem assembly 5 Remove the boost body key 6 stabilizer key 7 and stem guide key 8 from the diaphragm casing key 5 Unhook and remove the stem key 10 from the diaphragm casing key 5 6 Remove and inspect the diaphragm casing O ring key 4 Figure 7 8 9 or 12 and replace it if necessary 627 Series RELIEF VALVE O RING W4668 RELIEF SEAL A A RETAINER KEY 47 DIAPHRAGM CONNECTOR ASSEMBLY KEY 21 DIAPHRAGM KEY 23 DIAPHRAGM KEY 28 HEAD KEY 24 PUSHER POST DIAPHRAGM CONNECTOR KEY 19 NUT KEY 22 RELIEF VALVE x SPRING KEY 27 A GUIDE RETAINER LOWER SPRING R GUIDE RETAINER O RING KEY 48 ELIEF SPRING KEY 26 SEAT KEY 25 SEAT KEY 31 TYPE 627 627R 627LR 627M OR 627MR DIAPHRAGM LIMITER KEY 50 DIAPHRAGM Ja cen apa rita 4 DIAPHRAGM LIMITER PUSHER POST O RING KEY 51 KEY 19
14. in the direction indicated by the arrow cast on the body If continuous operation is required during inspection or maintenance install a three valve bypass around the regulator 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 aremote safe location away from air intakes or any hazardous area The vent line or stack opening must be protected against condensation or clogging Position the body key 1 and or diaphragm spring case key 29 so it will not collect moisture or debris into the screened vent If the regulator requires repositioning refer to the Body Area Maintenance Procedures and or the Diaphragm and Spring Case Area Maintenance Procedures in the Maintenance section to reposition the screened vent for the application 627 Series INLET A3725 GRAVITY FEED D DRIP POT TYPE 627M SET LOWER we THAN WORKING REGULATOR CONTROL LINE Figure 3 De lcer System Operational Schematic Perform steps 7 through 9 for Types 627M 627HM and 627MR regulators only 7 AType 627M 627HM or 627MR regulator requires a downstream control line Install the control line before putting the regulator into operation 8 Ensure that the downstream control line piping is at least 3 8 inch 9 5 mm or larger outside diameter tubin
15. 0 138 1000 69 0 300 20 7 ti gt i 1 8 3 2 1500 103 1000 69 0 300 20 7 3 16 48 1000 69 0 1000 69 0 300 20 7 1 4 6 4 750 51 7 750 51 7 300 20 7 ma 10RA ADA 3 8 9 5 500 34 5 500 34 5 300 20 7 si 1 2 13 300 20 7 300 20 7 300 20 7 3 32 24 2000 138 1000 69 0 300 20 7 3 SAIM z ha z P l 1 8 3 2 2000 138 1000 69 0 300 20 7 244 3 16 4 8 1750 121 1000 69 0 300 20 7 1 4 6 4 1500 103 1000 69 0 300 20 7 o o 3 8 9 5 1000 69 0 1000 69 0 300 20 7 1 2 13 750 51 7 750 51 7 300 20 7 SF 3 32 24 2000 138 1000 69 0 300 20 7 Ap 2 1 8 3 2 2000 138 1000 69 0 300 20 7 i 3 16 4 8 2000 138 1000 69 0 300 20 7 1 4 6 4 1750 121 1000 69 0 300 20 7 de 3 8 9 5 1250 86 2 1000 69 0 300 20 7 1 2 13 750 51 7 750 51 7 300 20 7 52 to 20 psig 3 32 24 2000 138 1000 69 0 300 20 7 Gao id 4 1 8 3 2 1000 69 0 1000 69 0 300 20 7 3 16 48 750 51 7 750 51 7 300 20 7 1 4 6 4 500 34 5 500 34 5 300 20 7 L 3 8 9 5 300 20 7 300 20 7 300 20 7 1 2 13 200 13 8 200 13 8 200 13 8 PET 3 32 2 4 2000 138 1000 69 0 300 20 7 i on 2 i 1 8 3 2 1500 103 1000 69 0 300 20 7 3 16 48 1000 69 0 1000 69 0 300 20 7 1 4 6 4 750 51 7 750 51 7 300 20 7 mem PESTE 3 8 9 5 300 20 7 300 20 7 300 20 7 kelb 1 2 13 200 13 8 200 13 8 200 13 8 3 32 24 2000 138 1000 69 0 300 20 7 627 MR 2 fi l 1 8 3 2 1750 121 1000 69 0 300 20 7 JO 988 3 16 4 8 1000 69 0 1000 69 0 300 20 7 1 4 6 4 750 51 7 750 51 7 300 20 7 Pets E 3 8 9 5 300 20 7 300 20 7 300 20 7 ME 1 2 13 200 13 8 200 13 8 200 13 8 Hood 3 32 24 2000 138 1
16. 00 82 7 550 37 9 330 22 8 210 14 5 190 13 1 l 200 13 8 2000 138 1700 117 800 55 2 480 33 1 270 18 6 220 152 250 17 2 2000 138 2000 138 1200 82 7 770 53 1 390 26 9 300 20 7 175 12 1 1900 131 600 41 4 400 27 6 260 17 9 200 13 8 175 12 1 70 4 8 200 13 8 2000 138 1200 82 7 630 43 4 380 26 2 250 17 2 210 14 5 250 17 2 2000 138 2000 138 1100 75 8 680 46 9 360 24 8 290 20 0 70 to 150 psig 175 12 1 1400 96 5 250 17 2 240 16 5 200 13 8 190 13 1 175 12 1 4 8 to 10 3 bar 80 5 5 200 13 8 2000 138 960 66 2 520 35 9 330 22 8 240 16 5 210 14 5 250 17 2 2000 138 2000 138 1000 69 0 620 42 7 350 24 1 280 19 3 1063079X012 FET JET 200 138 1500 103 250 17 2 240 165 230 159 210 14 5 210 145 Red 250 17 2 2000 138 1600 110 770 53 1 520 35 9 320 22 1 270 18 6 125 8 6 250 17 2 2000 138 1000 69 0 500 34 5 390 26 9 290 20 0 260 179 150 10 3 250 17 2 1200 82 7 260 17 9 260 17 9 260 17 9 260 17 9 260 17 9 1 The internal relief performance values are obtained by removing the disk assembly 2 Forinlet pressures in excess of 1000 psig 69 0 bar refer to the maximum body and disk pressure ratings in the Specifications section 3 For pressure settings under 10 psig 0 69 bar inlet pressure should be limited to app
17. 000 69 0 300 20 7 a p bar 1 8 3 2 1000 69 0 1000 69 0 300 20 7 i 3 16 48 500 34 5 500 34 5 300 20 7 1 4 6 4 300 20 7 300 20 7 300 20 7 ee 3 8 9 5 200 13 8 200 13 8 200 13 8 4 2 13 200 13 8 200 13 8 200 13 8 pea Pa 3 32 2 4 1000 69 0 300 20 7 ere 1 8 3 2 1000 69 0 300 20 7 s 3 16 48 750 51 7 300 20 7 1 4 6 4 500 34 5 300 20 7 Green 3 32 24 2000 138 1000 69 0 A aS 1 8 3 2 2000 138 1000 69 0 l Ra 3 16 48 1750 121 1000 69 0 1 4 6 4 1500 103 1000 69 0 oy E ae 3 8 9 5 1000 69 0 750 51 7 1 2 13 750 51 7 500 34 5 3 32 24 2000 138 1000 69 0 627HM Ka ja lin 1 8 3 2 2000 138 1000 69 0 OD DAL 3 16 4 8 1750 121 1000 69 0 1 4 6 4 1500 103 1000 69 0 oe 3 8 9 5 1000 69 0 1000 69 0 e 1 2 13 750 51 7 750 51 7 1 Forinlet pressure in excess of 1000 psig 69 0 bar refer to the maximum body and disk pressure ratings in the Specifications section 2 For pressure settings under 10 psig 0 69 bar inlet pressure should be limited to approximately 100 psig 6 9 bar so the setpoint adjustment can be obtained 3 The unbalance forces change from the wide open monitor mode to an active regulator mode such that the Type 627M or 627HM should have a 3 8 inch 9 5 mm or larger orifice Shaded areas indicate that Fluorocarbon FKM and Nylon PA disk material are not available 627 Series Table 2 Maximum Spring and Diaphragm Casing Pressure TYPES 627R TYPES 627H DIAPHRAG
18. 032 0B042235032 1A928835032 ORO441X0012 1A9367X0022 009912X0012 0B0420X0012 0B0422X0012 1A9288X0012 1A560724052 1352524052 1A5607X0052 10A3869X012 1A5607X0052 10A3869X022 627 Series Kev Description 4 Diaphragm Case O ring Nitrile NBR For Type 627 627H or 627R only Fluorocarbon FKM For Types 627 627R and 627LR only 5 Diaphragm Case For Type 627 627R or 627LR Aluminum without 1 8 inch 3 2 mm gauge tap Aluminum with 1 8 inch 3 2 mm gauge tap for 627 Series except Types 627H and 627HM Ductile iron without 1 8 inch 3 2 mm gauge tap Ductile iron with 1 8 inch 3 2 mm gauge tap for 627 Series except Types 627H and 627HM For Type 627 627R or 627LR Steel Ductile iron with 1 4 NPT gauge tap for 627 Series except Types 627H and 627HM Steel with 1 4 NPT gauge tap for 627 Series except Type 627H For Type 627M or 627MR Ductile iron Steel For Type 627H Steel For Type 627 Stainless steel For Type 627HM Steel 6 Boost Body not for Type 627M 627HM or 627MR Delrin For Type 627 or 627H For Type 627R or 627LR 7 Stabilizer Nitrile NBR For Types 627 627H 627R and 627LR only Fluorocarbon FKM For Types 627 627R and 627LR only 8 Stem Guide for Types 627 627H 627R and 627LR only Powdered metal 9 Disk Assembly for all Orifice Size Aluminum holder and Nitrile NBR disk 303 Stainless steel holder and Nitrile NBR disk Aluminum holder and Nylon PA disk 303 Stainless steel holde
19. 19 21 22 23 24 25 26 27 28 29 29 Description Lever Cap Screw 2 required Plated steel 316 Stainless steel NACE Pusher Post Aluminum For Tvpe 627 or 627M For Type 627R 627LR or 627MR For Tvpe 627H or 627HM 416 Stainless steel Stainless steel NACE Diaphragm Connector for Tvpe 627R 627LR or 627MR only Stainless steel Diaphragm Connector Nut for Tvpe 627R 627LR or 627MR only Stainless steel Diaphragm Nitrile NBR For Tvpe 627 or 627M with Aluminum or Ductile iron diaphragm case For Tvpe 627 or 627M with Steel diaphragm case For Tvpe 627R 627LR or 627MR with Aluminum or Ductile iron diaphragm case For Tvpe 627R 627LR or 627MR with Steel diaphragm case For Tvpe 627H or 627HM with Steel diaphragm case diaphragm is Neoprene CR with Nvlon PA fabric Fluorocarbon FKM For Tvpes 627R 627LR and 627MR with Steel case For Tvpes 627 and 627M with Steel case For Tvpes 627R 627LR and 627MR with Ductile Iron and Aluminum Casing For Tvpes 627 and 627M with Ductile Iron and Aluminum Casing Diaphragm Head Plated steel For Tvpe 627 or 627M Plated steel For Tvpe 627R 627LR or 627MR Plated steel For Tvpe 627H or 627HM 416 Stainless steel Relief Spring Seat For Tvpe 627R or 627MR oniv Steel Guide Retainer For Tvpe 627R 627LR or 627MR oniv Stainless steel Relief Spring For Tvpe 627R or 627MR oniv Plated steel For Tvpe 627LR Relief Seal O ring Nitrile NBR For Type 627R
20. 31 over the relief spring so it rests flat on the connector nut key 22 Insert the diaphragm assembly into the diaphragm casing key 5 and hook the pusher post on the lever key 15 Install the control spring key 32 and upper spring seat key 33 and apply lubricant to the upper spring seat key 33 Install the spring case key 29 so that the screened vent assembly key 30 is in the correct position for the application Place the nameplates over the screw holes insert the spring case cap screws key 37 and finger tighten Screw in the adjusting screw key 35 to put slack into the diaphragm key 23 Using a crisscross pattern finish tightening the spring case cap screws key 37 to 7 foot pounds 9 5 Nem of torque If necessary refer to the installation and or the Startup and Adjustment procedures Install the adjusting locknut key 34 after regulator adjustment spare parts are available Parts List Note In this parts list parts marked NACE are intended for corrosion resistant service as detailed in the NACE International Standard MR0175 Key Description Part Number Type 627 Parts Kit with Aluminum Nitrile NBR trim include keys 4 9 11 12 and 23 R627X000A12 Type 627 Parts Kit with Stainless steel Nitrile NBR trim include keys 4 9 11 12 and 23 R627X000S12 Type 627H Parts Kit with SST Nylon PA trim R627HX00S12 Type 627R Parts Kit with Aluminum Nitrile NBR trim include kevs
21. 35 in place and tighten the locknut key 34 Shutdown To avoid personal injury or property damage due to explosion or damage to regulator or downstream components during shutdown release downstream pressure to prevent an overpressure condition on the diaphragm of the regulator 1 Close the nearest upstream shut off valve 2 Close the nearest downstream shut off valve 3 Open the vent valve between the regulator and the downstream shut off valve nearest to it 4 For a Type 627 627H 627R or 627LR regulator the regulator will open to release pressure between the upstream shut off valve and the regulator 5 A Type 627M 627HM or 627MR regulator requires venting the control line and downstream pressure from the regulator before maintenance The pressure between these shut off valves is released through the open regulator because the disk assembly remains open in response to the decrease in control line pressure Maintenance Unless otherwise specified the following maintenance procedures apply to all types of regulators For a summary of maximum torque values required for all types of regulators refer to Table 7 Due to normal wear damage from external sources or debris in the air or gas line regulator parts such as the disk assembly orifice and diaphragm must RELIEF INDICATOR CAP KEY 49 W4665 Figure 4 Relief Indicator be inspected periodically and replaced as necessary to ensure correct perf
22. 627 Series CONTROL SPRING STEM VALVE DISK PUSHER POST A6557 ES INLET PRESSURE EW OUTLET PRESSURE CI ATMOSPHERIC PRESSURE ORIFICE Figure 2 Tvpe 627 Operational Schematic those limits The Tvpe 627R 627LR or 627MR regulator with internal relief will provide downstream overpressure protection within the limits given in the Specifications section Tables 1 2 3 and 4 If these limits are exceeded additional downstream overpressure protection must be provided by the user 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 regulator in a safe location Principle of Operation Refer to Figure 2 When downstream demand decreases the pressure under the diaphragm increases This pressure overcomes the regulator setting which is set by a spring Through the action of the pusher post assembly lever and valve stem the valve disk moves closer to the orifice and reduces gas flow If demand downstream increases pressure under the diaphragm decreases Spring force pushes the pusher post assembly downward and the valve disk moves away from the orifice Product Description Types 627 and 627H Direct Operated Pressure Reducing Regulators The Types 627 and 627H regulators provide economical pressure reducing control for a variety of residential com
23. Instruction Manual Form 5252 May 2013 627 Series 627 Series Pressure Reducing Regulators Failure to follow these instructions or to properly install and maintain this equipment could result in an explosion and or fire causing property damage and personal injury or death Fisher regulators must be installed operated and maintained in accordance with federal state and local codes rules and regulations and Emerson Process Management Regulator Technologies Inc Regulator Technologies instructions If the regulator vents gas or aleak develops in the svstem service to the unit may be required Failure to correct trouble could result in a hazardous condition Call a gas service person to service the unit Only a qualified person must install or service the regulator Introduction Scope of the Manual This manual provides instructions for the installation adjustment maintenance and parts ordering information for the 627 Series regulators These regulators are usually shipped separate for line installation although sometimes they are shipped installed on other equipment Refer to the Instruction Manual of the other equipment for installation and operating instructions Description The 627 Series direct operated pressure reducing regulators Figure 1 are for high and low pressure systems These regulators can be used with natural gas air or a variety of other gases Performance characteristics vary accordi
24. M TYPE 627 TYPE 627M TYPE 627MR AND 627LR AND 627HM MAXIMUM PRESSURE DESCRIPTION CASING MATERIAL i psig bar psig bar psig bar psig bar psig bar Maximum pressure to spring and diaphragm Die cast aluminum Not Available Not Available Not Available casings to prevent leak to atmosphere other than Ductile iron 250 17 2 250 17 2 LE aio relief action internal parts damage may occur Steel or Stainless steel i 250 17 2 800 55 2 Maximum pressure to spring and diaphragm Die cast aluminum 375 25 9 375 25 9 NotAvailable NotAvailable NE i i ot Available casings 19 prevent burst ol Casings during Ductile iron 465 321 465 321 465 321 465 321 abnormal operation leak to atmosphere and internal parts damage may occur Steel or Stainless steel 1500 103 1500 103 1500 103 1500 103 1500 103 Maximum diaphragm casifg overpressure above All materials 60 41 120 83 60 41 120 83 120 83 setpoint to prevent damage to internal parts 1 If the spring case is pressurized a metal adjusting screw cap is required Contact your local Sales Office for details for example disk broken off or disk erosion the pusher post contacts the lever retainer causing the relief valve assembly to open Since the diaphragm continues to rise as downstream pressure builds it opens the relief valve thereby opening the valve This internal relief may be adequate for the application Downstream Control L
25. Type 627MR Type 627M with internal relief Figure 11 Type 627H Type 627 with a diaphragm limiter to deliver a higher outlet pressure Figure 12 Type 627HM Type 627H with a stem seal between the body outlet pressure and diaphragm case Pressure is measured under the diaphragm through the 1 4 NPT downstream control line connection Figure 13 Body Sizes and End Connection Styles BODY SIZE CONSTRUCTION NPS DN END CONNECTION STYLE AVAILABLE 3 4 NPT 1 25 NPT CL150 RF CL300 RF CL600 RF and Long Body All 2 50 NPT CL150 RF CL300 RF CL600 RF and Long Body Maximum Inlet Pressure Body Rating NPT Stainless Steel 2000 psig 138 bar Flanged Stainless Steel 1440 psig 99 3 bar NPT Steel 2000 psig 138 bar Flanged Steel 1500 psig 103 bar Ductile Iron 1000 psig 69 0 bar Maximum Valve Disk Inlet Pressure Rating Nylon PA Disk 2000 psig 138 bar Nitrile NBR Disk 1000 psig 69 0 bar Fluorocarbon FKM Disk 300 psig 20 7 bar Maximum Operating Inlet Pressure Pressure Differential and Outlet Pressure Ranges See Table 1 for pressures by orifice size and spring range Maximum Spring and Diaphragm Casing Pressure See Table 2 Maximum Body Outlet Pressure Types 627M 627MR and 627HM Only NPT Steel 2000 psig 138 bar Flanged Steel 1500 psig 103 bar Ductile Iron 1000 psig 69 0 bar Orifice Sizes See Table 1 Internal Relief Performance Type 627R See Tabl
26. X012 1D667125072 1D667728982 10B3081X012 10B3080X012 20B3082X012 1A391724052 1A368324052 1A3683X0062 1A3917X0062 1A346424052 1A3464X0022 10B3085X012 1E264306992 1E2643X0022 10B3106X012 1B290524052 1C379124052 10B7445X012 1D682506992 1N423906382 30B3100X012 22B0176X012 1K877606992 1C853806992 1D8293T0022 1A368228982 1A767524662 r L1 0000 OOO r N 092 G APPLY LUBRICANT L1 MULTI PURPOSE LITHIUM POLYMER TYPE GREASE L2 EXTREME LOW TEMPERATURE BEARING GREASE PARTS NOT SHOWN 3 1 Lubricants must be selected such that they meet the temperatu 35 84 82 29 1407 GOAD 12 GO 3 L2 L2 L2 re reguirements Figure 7 Type 627 Regulator Assembly 627 Series IYO 6 L2 L1 627 Series 49 L1 30 29 34 36 35 33 26 32 18 27 B ph 286 24 23 L2 47 22 21 28 L1 19 APPLY LUBRICANT 15 L2 14 42146 AD AD 0 43 L2 L2 L2 L1 MULTI PURPOSE LITHIUM POLYMER TYPE GREASE Figure 8 Type 627R Regulator Assembly 4 r N
27. ar maximum inlet pressure NPS 1 DN 25 NPS 2 DN 50 Stainless Steel CL600 RF flanged 1440 psig 99 2 bar maximum inlet pressure NPS 1 DN 25 NPS 2 DN 50 Stainless Steel PN 16 25 40 RF 580 psig 40 0 bar maximum inlet pressure NPS 1 DN 25 NPS 2 DN 50 2 Orifice Aluminum 3 32 inch 2 4 mm 1 8 inch 3 2 mm 3 16 inch 4 8 mm 1 4 inch 6 4 mm 3 8 inch 9 5 mm 1 2 inch 13 mm 303 Stainless steel 3 32 inch 2 4 mm 1 8 inch 3 2 mm 3 16 inch 4 8 mm 1 4 inch 6 4 mm 3 8 inch 9 5 mm 1 2 inch 13 mm 316 Stainless steel NACE construction only 3 32 inch 2 4 mm 1 8 inch 3 2 mm 3 16 inch 4 8 mm 1 4 inch 6 4 mm 3 8 inch 9 5 mm 1 2 inch 13 mm 3 Cap Screw not shown 2 required 627 Series For Ductile iron Steel diaphragm case For Aluminum diaphragm case not applicable for Types 627H and 627HM Type 627 Only For Ductile iron Steel diaphragm case For Aluminum case with Steel diaphragm case For SST Case and body For Aluminum Case and SST body Recommended spare part 1 Bodies can be used for both standard and NACE constructions Part Number 43B8656X022 44B0666X012 33B6723X012 38B1688X012 44B0386X012 44B3342X012 30B3050X062 30B3051X092 30B7452X052 43B8656X052 44B0666X022 41B8978X072 41B8080X072 40B6754X102 40B6756X062 44B0386X032 44B3342X032 OR044109022 1A936709012 00991209012 0B042009012 0B042209012 1A928809012 OR044135032 1A936735032 00991235032 0B042035
28. ccuracy 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 Emerson Process Management Regulator Technologies Inc 1986 2013 All Rights Reserved KE a EMERSON
29. e 3 Type 627LR See Table 4 Type 627MR Limited by field installed control line piping Elastomer Temperature Capabilities MATERIAL DISK TEMPERATURE DIAPHRAGM F C te Disk Nitrile NBR 40 to 180 40 to 82 Diaphragm Disk Fluorocarbon FKM 0 to 180 18 to 82 Diaphragm Nylon PA Disk 40 to 180 40 to 82 Neoprene CR for p 1 Types 627H and 627HM only Diaphragm 40 to 180 40 to 82 Flow Coefficients See Table 5 IEC Sizing Coefficients See Table 6 Pressure Registration Type 627 627H 627R or 627LR Internal Type 627M 627HM or 627MR External through 1 4 NPT control line connection in the diaphragm casing De Icer System See Figure 3 and Type 627M Regulator De Icer System Application section Relief Indicator For Types 627R 627LR and 627MR see Figures 8 9 and 11 Spring Case Vent Connection 3 4 NPT with removable screened vent assembly Approximate Weights Ductile Iron Steel or Stainless Steel Casings 10 pounds 4 kg Aluminum Casings 6 3 pounds 3 kg 1 The pressure temperature limits in this Instruction Manual or any applicable standard limitation should not be exceeded 2 Types 627 627H 627R and 627LR are limited by maximum diaphragm casing pressure 3 Stainless steel body is rated to 40 F 40 C Steel and Ductile Iron bodies are rated to 20 F 29 C ADJUSTING SCREW DIAPHRAGM
30. en Wide Open Wide Open Wide Open Inch fim Cc for C for c Cc for C for c C for C for c External External 1 External External 4 External External 1 Relief Sizing Relief Sizing Relief Sizing Relief Sizing Relief Sizing Relief Sizing 3 32 2 4 6 9 0 24 29 2 6 9 0 24 28 5 6 9 0 23 29 7 1 8 3 2 12 5 0 43 29 1 12 5 0 43 29 4 12 5 0 42 29 5 3 16 4 8 29 1 01 28 6 29 0 93 31 2 29 1 02 28 5 1 4 6 4 50 1 63 30 6 50 1 71 29 3 52 1 66 31 3 3 8 9 5 108 2 99 36 1 108 3 42 31 6 115 3 39 33 9 1 2 13 190 4 87 39 0 190 5 29 35 9 200 5 01 39 9 Table 6 IEC Sizing Coefficients ORIFICE SIZE X E E Inch mm 3 4 NPT Body NPS 1 DN 25 Body NPS 2 DN 50 Body A F 3 32 2 4 0 539 0 514 0 558 0 85 1 8 3 2 0 536 0 547 0 539 0 79 3 16 4 8 0 517 0 616 0 514 0 85 1 4 6 4 0 592 0 543 0 620 0 50 0 87 3 8 9 5 0 824 0 632 0 727 0 89 1 2 13 0 962 0 815 1 01 0 86 Table 7 Maximum Torque Values MAXIMUM TORQUE KEY NUMBER DESCRIPTION FOOT POUNDS Nem 2 25 34 3 Cap screw with aluminum diaphragm casing 16 22 Cap screw with ductile iron or steel stainless steel diaphragm casing 25 34 18 Lever cap screw 7 9 5 22 Diaphragm connector nut 17 23 26 Guide retainer for Types 627R 627LR and 627MR only 3 4 1 37 Spring case cap screw with aluminum or ductile iron diaphragm casing T 9 5 Spring case cap screw with steel stainless steel diaphragm casing 35 47 46 Diaphragm cap screw with Type 627 or 627M FA 9 5 Diaphragm cap screw with Type 627H or 627HM 14 19 1
31. es off its orifice permitting alcohol to flow into the main gas line The alcohol carried to the main regulator by the flowstream prevents additional ice from forming on the orifice When normal flow resumes and as pressure in the downstream system is restored the Type 627M or 627HM regulator shuts off Overpressure Protection 627 Series regulators have outlet pressure ratings that are lower than their inlet pressure ratings A pressure 627 Series Table 3 Type 627R Internal Relief Performance MAXIMUM MAXIMUM INLET PRESSURE TO KEEP MAXIMUM ALLOWABLE DOWNSTREAM AS OUTLET ALLOWABLE SYSTEM PRESSURE FROM BEING EXCEEDED PRESSURE DOWNSTREAM ifi i SPRING PART SETTING SYSTEM Orifice Size Inches mm NUMBER AND PRESSURE 3 32 2 4 1 8 13 2 3 16 4 8 1 41 6 4 3 8 9 5 1 2 113 COLOR CODE psig bar psig bar psig bar psig bar psig bar psig bar psig bar psig bar 60 4 1 1250 86 2 740 51 0 320 22 1 190 13 1 95 6 6 75 5 2 100 6 9 2000 138 1500 103 620 42 7 390 26 9 180 12 4 130 9 0 10 0 69 125 8 6 2000 138 1900 131 830 57 2 480 33 1 220 15 2 160 11 0 175 12 1 2000 138 2000 138 1100 75 8 670 46 2 320 22 1 220 152 200 13 8 2000 138 2000 138 1300 89 6 770 53 1 360 24 8 260 17 9 250 17 2 2000 138 2000 138 1600 110 960 66 2 450 31 0 320 22 1 50 to 20 psig 60 4 1 1000 69 0 620 42 7 260 17 9 170 11 7 90 6 2 70 4 8 0 34 to 1 4 bar 100 6 9 2000 138 1400 96 5 610 42
32. g and connected to a straight section of outlet piping 10 diameters downstream of the regulator 9 Ahand valve should be installed in the control line This hand valve can be used to throttle down and dampen outlet pulsations in control pressure which may cause instability or cycling of the regulator Remote Vent Line Installation All 627 Series regulators have a vent assembly installed in the 3 4 NPT spring case vent opening The vent assembly can be removed to install a remote vent line if necessary Remote vent lines must have the largest practical diameter It should be as short as possible with minimum number of bends or elbows Protect the remote vent opening against entrance of rain snow or any other foreign material that may plug the vent or vent line and prevent proper operation of the regulator Periodically check the vent opening to be sure it is not plugged with foreign debris Type 627M or 627HM Regulator De lcer System Application For the Type 627M or 627HM regulator de icer system refer to the application shown in Figure 3 With a large pressure drop across the working regulator ice can form within this regulator The formation of ice decreases the size of the orifice so the regulator is unable to supply enough flow to satisfy the downstream demand When the downstream pressure falls below the outlet pressure setting of the Type 627M or 627HM regulator the disk assembly of the Type 627M or 627HM regulator mov
33. he disk assembly key 9 line up the hole in the disk assembly and stem key 10 and insert the hair pin clip kev 13 18 Position the diaphragm casing kev 5 plus attached parts in relation to the bodv kev 1 so that thev are correct for the application 19 Secure the diaphragm casing key 5 to the body with the cap screws key 3 Figure 5 For an aluminum diaphragm casing torque the cap screws key 3 to 16 foot pounds 22 Nem For ductile iron or steel diaphragm casings torque the cap screws key 3 to 25 foot pounds 34 Nem 20 It may be necessary to reposition the diaphragm spring case to prevent rain ice and foreign debris from entering the spring case Refer to the Diaphragm and Spring Case Area Maintenance Procedures steps 1 2 and 21 through 25 Diaphragm and Spring Case Area Maintenance Procedures These procedures are for gaining access to the control spring diaphragm assembly and lever assembly All spring pressure must be released from the diaphragm casing before these steps can be performed While using the following procedures refer to Figures 7 through 13 for key number locations 1 Remove the adjusting screw cap key 36 loosen the lock nut key 34 and turn the adjusting screw key 35 counterclockwise until all compression is removed from the control spring key 32 2 Remove the spring case cap screws key 37 the nameplates and lift off the spring case key 29 If changing the contro
34. ine for Type 627M 627HM or 627MR Regulator A Type 627M 627HM or 627MR regulator has a blocking throat stem seal with O rings and a 1 4 NPT control line connection in the diaphragm case A regulator with a downstream control line is used for monitoring applications or other applications where other equipment is installed between the regulator and the pressure control point The stem seal separates the body outlet pressure from the diaphragm case Installation Regulator operation within ratings does not preclude the possibility of damage from debris in the lines or from external sources A regulator should be inspected for damage periodically and after any overpressure condition Key numbers referenced in this section are shown in Figures 7 through 13 Ensure that the operating temperature capabilities listed in Specifications section are not exceeded Note If the regulator is shipped mounted on another unit install that unit according to the appropriate Instruction Manual Perform steps 1 through 6 for all types of regulators 1 Only personnel qualified through training and experience should install operate or maintain this regulator For a regulator that is shipped separately make sure that there is no damage to or foreign material in the regulator Ensure that all tubing and piping have been blown free of foreign debris The regulator may be installed in any position as long as the flow through the body is
35. l spring key 32 or repositioning the spring case key 29 is the only maintenance required install the replacement control spring or rotate the spring case so it is correct for the application Skip to step 21 For diaphragm area maintenance continue with step 3 3 Remove the diaphragm limiter O ring and diaphragm limiter keys 51 and 50 on the Tvpe 627H or 627HM oniv Remove the diaphragm assembly by tilting it so that the pusher post kev 19 slips off the lever kev 15 4 If it is necessary to replace the lever assembly remove the lever cap screws key 18 5 Install the replacement lever key 15 into the lever retainer key 16 by inserting the lever pin key 17 Secure the lever assembly into the diaphragm casing with the cap screws key 18 and torque the cap screws to 7 foot pounds 9 5 Nem If it is necessary to perform maintenance on the diaphragm assembly continue with steps 6 through 11 and step 20 for Types 627 627H 627M and 627HM regulators or steps 12 through 19 for Types 627R 627LR and 627MR regulators 627 Series Perform steps 6 through 11 for Types 627 627H 627M and 627HM Regulators only 6 For Types 627 627H 627M and 627HM regulators Figures 5 and 6 use steps 7 through 11 to disassemble and reassemble the diaphragm assembly 7 Remove the diaphragm head cap screw key 46 lower spring seat key 31 Type 627 or 627M only and diaphragm head key 24 On the Type 627H or 627HM
36. mercial and industrial applications The regulator pitot tube located in a high velocity stream provides dynamic boost that compensates for outlet pressure drop Type 627 Long Body The Type 627 Long Body regulator can be used as a drop in replacement for existing Type 630 installations without the need to modify piping Internal Relief for Type 627R 627LR or 627MR Regulator The Type 627R internal relief performance values were obtained by removing the disk assembly from the regulator For the Type 627R 627LR or 627MR regulator the internal relief across the diaphragm provides overpressure protection in many applications As outlet pressures build up above the start to discharge point the diaphragm moves off the relief valve seat allowing the excess pressure to bleed out through the screened vent For extra protection should failure conditions exist which would prevent normal operation of the regulator 627 Series Table 1 Maximum Inlet Pressures and Outlet Pressure Ranges OUTLET PRESSURE ir MAXIMUM INLET PRESSURE TYPE dag ul Nylon PA Disk Nitrile NBR Disk Fluorocarbon FKM Disk COLOR CODE Inches mm psig bar psig bar psig bar ae enr 3 32 24 2000 138 1000 69 0 300 20 7 Sat A a 1 8 3 2 1000 69 0 1000 69 0 300 20 7 3 16 48 750 51 7 750 51 7 300 20 7 1 4 6 4 500 34 5 500 34 5 300 20 7 lk a 3 8 9 5 300 20 7 300 20 7 300 20 7 1 2 13 250 17 2 250 17 2 250 17 2 ey ee 3 32 2 4 200
37. ng to construction www fisherregulators com W4793 Figure 1 Typical 627 Direct Operated Pressure Reducing Regulator Personal injury property damage equipment damage or leakage due to escaping gas or bursting of pressure containing parts may result if this regulator is overpressured or is installed where service conditions could exceed the limits given in the Specifications section Tables 1 2 3 and 4 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 aa EMERSON D101328X012 627 Series Specifications The Specifications section gives some general specifications for the 627 Series regulators The nameplates give detailed information for a particular regulator as it comes from the factory Available Constructions Type 627 Direct operated pressure reducing regulator equipped with a pitot tube for greater regulated capacities Figure 7 Type 627R Type 627 with internal relief and with an open throat Figure 8 Type 627LR Type 627R with light rate relief spring Figure 9 Type 627M Type 627 with a stem seal between the body outlet pressure and diaphragm case Pressure is measured under the diaphragm through the 1 4 NPT downstream control line connection Figure 10
38. onnector assembly key 21 627 Series 15 Position the replacement diaphragm key 23 on the connector assembly key 21 install the diaphragm head key 24 and connector nut key 22 then torque to 17 foot pounds 23 Nem 16 If necessary replace the guide retainer O ring key 48 and set the guide retainer key 26 aside ready for assembly 17 On the pusher post key 19 install the relief Parts Ordering When corresponding with your local Sales Office about this equipment always reference the equipment serial number or FS number that can be found on the nameplate When ordering replacement parts reference the key number of each needed part as found in the following parts list Separate kits containing all recommended 18 19 20 21 22 23 24 25 26 seal O ring key 28 and apply lubricant Also install the relief seal retainer key 47 diaphragm connector assembly key 21 with attached parts relief spring key 27 upper relief spring seat key 33 and guide retainer key 26 Torque the guide retainer key 26 to 3 foot pounds 4 1 Nem Hook the pusher post key 19 with attached parts on the lever key 15 to check the alignment of the holes in the diaphragm with the holes in the spring casing If the holes do not line up unhook the pusher post from the lever hold the pusher post and rotate the diaphragm to the correct position Install the lower spring seat key
39. ormance The frequency of inspection and replacement depends upon the severity of conditions and the requirements of state and federal laws Normal wear of the orifice and disk assembly is accelerated with high pressure drops and with large amounts of impurities in the flowstream Instructions are given below for replacing the disk assembly orifice diaphragm and O rings These procedures may also be used for disassembly required for inspection and replacement of other parts Problem Indication for Types 627R 627LR and 627MR Regulators Isolate the regulator from all pressure to avoid personal injury and equipment damage due to explosion or sudden release of process pressure Cautiously release pressure from the regulator before attempting disassembly The vent assembly is equipped with a relief indicator key 49 Figure 4 The cap for the relief indicator snaps over the vent assembly opening If the relief valve opens wide exhaust gas pops the cap off the screen vent assembly opening indicating a problem with the regulator If the cap pops off refer to the shutdown and to the Bodv Area Maintenance Procedures to inspect the disk assembly and orifice If the disk assembly and orifice are not damaged refer to the Diaphragm and Spring Case Area Maintenance Procedures in this section LEVER KEY 15 DIAPHRAGM CASING KEY 5 W4792 627 Series HAIR PIN CLIP KEY 13 DIAPHRAGM CASING STEM KEY 10 O RING
40. r and Nylon PA disk 316 Stainless steel holder and Nylon PA disk 316 Stainless steel holder and Nitrile NBR disk 303 Stainless steel holder and Fluorocarbon FKM disk Aluminum holder and Fluorocarbon FKM disk 316 Stainless steel holder and Fluorocarbon FKM disk 10 Stem 303 Stainless steel 316 Stainless steel NACE 11 Stem O ring Nitrile NBR Fluorocarbon FKM For Types 627 627R 627LR 627M and 627MR only 12 Stem Back up Ring Polytetrafluoroethylene PTFE 2 required 13 Hair Pin Clip Stainless steel 14 Drive Pin Plated steel 15 Lever Plated steel 16 Lever Retainer Plated steel 17 Lever Pin Stainless steel 316 Stainless steel NACE 2 Stainless steel body material can be used for applications in temperature ranges down to 40 F 40 C and are only available for Types 627 627R and 627H Delrin is a mark owned by E l du Pont de Nemours and Co Part Number 17A2325X022 10A0037X012 40B3084X012 11B5380X012 30B3053X012 31B0641X012 30B3104X012 39A5987X012 30B8734X012 39A5987X012 30B8734X012 30B3104X012 30B3104X082 30B8734X012 30B3056X012 30B3057X012 10B3060X012 10B3060X022 20B3061X012 1C4248X0212 1C4248X0202 1C4248X00A2 1C4248X0062 1C4248X0262 1C4248X0252 1C4248X0052 1C4248X0182 1C4248X0192 10B3059X012 10B3059X022 1D687506992 1N430406382 1K786806992 10B3058X012 1H3671X0012 20B3063X012 30B3097X012 10B3083X012 10B3083X022 15 627 Series Key 18
41. remove the pusher post O rings key 52 Separate the diaphragm key 23 from the pusher post key 19 8 Install the diaphragm key 23 in reverse order in step 7 on the pusher post key 19 insert and finger tighten the diaphragm head cap screw key 46 9 Hook the pusher post on the lever key 15 then turn the diaphragm key 23 to match the holes in the diaphragm with the holes in the spring casing 10 Unhook the pusher post from the lever key 15 and torque the diaphragm head cap screw key 46 to 7 foot pounds 9 5 Nem for the Type 627 or 627M On the Type 627H or 627HM torque the diaphragm head cap screw to 14 foot pounds 19 Nem 11 Hook the pusher post on the lever key 15 and check the hole alignment If necessary loosen the cap screw key 46 and reposition the diaphragm key 23 on the pusher post key 19 Retorque the screw see step 10 Skip to step 20 Perform steps 12 through 19 for Types 627R 627LR and 627MR Regulators only 12 For Types 627R 627LR and 627MR regulators Figure 6 use steps 13 through 19 to disassemble and reassemble the diaphragm assembly 13 Remove the guide retainer key 26 and separate the diaphragm parts Refer to Figure 6 for the sequence of parts 14 To remove the diaphragm key 23 remove the diaphragm connector nut key 22 and lift off the diaphragm head key 24 and diaphragm key 23 from the connector assembly key 21 Do not attempt to disassemble the c
42. roximately 100 psig 6 9 bar so the setpoint adjustment can be obtained gt Shaded areas indicate maximum inlet pressures allowed during system malfunction only Table 1 gives the maximum inlet pressure for normal regulator operation Table 4 Type 627LR Internal Relief Performance MAXIMUM INLET PRESSURE TO KEEP MAXIMUM ALLOWABLE OUTLET MAXIMUM ALLOWABLE 2 OUTLET PRESSURE RANGE DOWNSTREAM SYSTEM PRESSURE FROM BEING EXCEEDED PRESSURE DOWNSTREAM Orifice Size Inches mm SPRING PART NUMBER SETTING SYSTEM PRESSURE gt AND COLOR CODE 3 32 2 4 1 8 3 2 3 16 4 8 1 4 I 6 4 psig bar psig bar psig bar psig bar psig bar psig bar 55 3 8 500 34 5 270 18 6 15 to 40 psig 30 2 1 60 4 1 850 58 6 480 33 1 1 03 to 2 8 bar 66 45 1000 69 0 660 45 5 10B3077X012 66 4 5 380 26 2 190 13 1 Green 40 2 8 70 4 8 700 48 3 370 25 5 150 10 3 115 7 9 75 5 2 1000 69 0 560 38 6 240 16 5 160 11 0 1 The internal relief performance values are obtained bv removing the disk assembiv 2 Forinlet pressures in excess of 1000 psig 69 0 bar refer to the maximum bodv and disk pressure ratings in the Specifications section Table 5 Flow Coefficients 627 Series ORIFICE 3 4 NPT NPS 1 DN 25 BODY NPS 2 DN 50 BODY Wide Open Wide Open Wide Op
43. the outlet pressure rating since these regulators do not have internal relief Types 627R and 627LR regulators provide internal relief which limits the total outlet pressure buildup over setpoint Use Tables 3 and 4 to determine the total outlet pressure This internal relief may be adequate for the application if not provide additional pressure relief or a pressure limiting device downstream Startup and Adjustment Startup To avoid personal injury or property damage due to explosion or damage to regulator or downstream components during startup release downstream 627 Series Table 3 Type 627R Internal Relief Performance continued MAXIMUM MAXIMUM INLET PRESSURE TO KEEP MAXIMUM ALLOWABLE DOWNSTREAM OUTLET PRESSURE RANGE OUTLET ALLOWABLE SYSTEM PRESSURE FROM BEING EXCEEDED 6 gt PRESSURE DOWNSTREAM ifi i SPRING PART NUMBER SETTING SVSTEM Orifice Size Inches mm AND COLOR CODE PRESSURE 3 32 2 4 1 8 3 2 3 16 4 8 1 41 6 4 318 1 9 5 1 2113 psig bar psig bar psig bar psig bar psig bar psig bar psig bar psig bar 125 8 6 2000 138 1100 75 8 500 34 5 300 20 7 170 11 7 140 9 7 150 10 3 2000 138 1600 110 750 51 7 440 30 3 230 15 9 180 12 4 40 2 8 175 12 1 2000 138 2000 138 980 67 6 580 40 0 290 20 0 220 15 2 200 13 8 2000 138 2000 138 1200 82 7