Emerson EZH and EZHSO Series Pressure Reducing Regulators Instruction Manual
Contents
1. Diaphragm Bellows Piston Spring case Zinc plated steel Stainless steel Spring box Aluminum Chromatation Diaphragm Nitrile mesh Piston Stainless steel Bellows Stainless steel Spring Zinc plated steel Zinc plated steel Adjustment screw AUTHORIZED PERSONNEL ONLY Risk of injury After rearming remove the reset key from the stem Do not put fingers in or near the reset mechanism area ADJUSTMENT BMS Generally speaking adjustments are carried out with the slam shut valve closed Only the detection stage is reset Control of the releasing value may be obtained by resetting the two stages Before any adjustment check that the spring range installed corresponds to the required setpoint Y n SS X distance between releasing b2 innt screw and pin D1 Y 7 distance between releasing D1 tt N e 90 Type BMS 1 Figures 17 to 19 Releasing by Max Only Adjusting the releasing screw Free the min hook key 2 Then in the following conditions no pressure in the safety manometric box BMS setpoint spring compressed so that the distance between the releasing screw and the pin D1 no longer increases adjust the releasing screw key 1 to X 1 5 mm detection stage set Jam nut key 3 Adjusting the max only releasing pressure Admit the releasing pressure to Pdo Screw the adjustment screw key 5 until detection stage can be se2. BASE SAFETY MANOMETRIC BOX 1 TYPE BMS 1 HOOK KIT SAFETY MANOMETRIC BOX 2 TYPE BMS 2 HOOK KIT N18 Figure 19 BMS with Bellows Table 10 Spare Parts Type OS2 s Diaphragm Max and or Min Piston Max or Min Bellows Max and or Min Description 162 71 27 17 236 315 Compete box 181 071 181 072 180 999 180 998 181 073 181 074 Type BMS 1 Base 181 105 181 106 181 107 181 108 181 109 181 110 Hook kit 181 111 Compete box 181 084 181 085 181 070 181 069 181 086 181 087 Type BMS 2 Base 181 105 181 106 181 107 181 108 181 109 181 110 Hook kit 181 112 Diaphragm 137 906 142 549 Spare Parts Set of O rings 197 352 Items in bold are spare parts DESCRIPTION BMS Impulse line The impulse line IS is connected to the network to be protected normally downstream of the regulator Impulse type N19 Depending on the pressure and precision required Fi 20 n BMS 1M Onl different types of impulse may be used Diaphragm Piston Gre 9 tpe aX Sy or Bellows Springs To cover all pressure ranges a set of springs of equal length and diameter but of different wire diameter 2 to 6 5 mm may be used Detection N20 Table 11 Detection Configurations Actioner Max only Min only Max and Min Figure 21 Type BM
3. 8100 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 6777 8337 Europe O M T Tartarini s r l Via P Fabbri 1 1 40013 Castel Maggiore Bologna Italy Tel 39 051 419 0611 Francel SAS 3 ave Victor Hugo CS 80125 Chartres 28008 France Tel 33 2 37 33 47 00 Middle East and Africa Dubai United Arab Emirates Tel 011 971 4811 8100 For further information visit www emersonprocess com regulators Emerson Process Management Tescom Corporation USA Headquarters EIk River Minnesota 55330 2445 USA Tels 1 763 241 3238 1 800 447 1250 Asia Pacific Shangai 201206 China Tel 86 21 2892 9499 Europe Selmsdorf 23923 Germany Tel 49 38823 31 287 The Emerson logo is a trademark and service mark of Emerson Electric Co All other marks are the property of their prospective owners Francel is a mark of Francel SAS 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 n
4. Nem torque Sealed BM Connector Flat O ring water resistant Packing gland gas resistant Mechanism contact Slam shut valve Control rod BM connector atmosphere Integrated vent nipple with screen supplied or compression fitting supplied for 8 10 tube not supplied Electrical connection See page 6 MECHANISM BOX BM MATERIAL Table 6 Mechanism Box BM Material Body Aluminum Chromatation Cover Aluminium Chromatation Box Position indicator Polycarbonate Self jamming ring Steel Phosphatation Cover nut Stainless steel Circlips Steel Phosphatation All parts Stainless HR Brackets Brass Bolt Brass Mechanic Elastic O ring Steel Phosphatation Torsion spring Stainless steel Traction spring Bronze Yoke Self jamming ring Steel Phosphatation Flat EPDM O rings Cover Neoprene CR Truarc ring Nitrile NBR COMMISSIONING BM Commissioning differs depending on whether the assembly has an internal or external bypass and whether overpressure releasing is required or not See corresponding technical manuals for further details VALVE TRAVEL STOP H N11 CLOSED POSITION TRAVEL STOP RESET DETECTION STAGE Type OS2 VALVE TRAVEL pu 2 RESET POWER STAGE Figure 15 Release Activation Stages Note The position of the travel stop Figure 10 key 7 depends on the type of assembly and its size Position A B or C depending
5. to releasing pressure required in the BMS adjust the min hook key 2 to Y 1 5 mm detection stage set Jam nut key 6 Adjusting the min only releasing pressure Same procedure as paragraph Adjusting max only releasing pressure Releasing by Max and Min Adjusting the push button The min hook key 2 is completely unscrewed Then in the following conditions setpoint spring decompressed adjustment screw key 5 unscrewed pressure equal to the max releasing pressure required in the BMS adjust the push button key 1 to X 0 mm detection stage set Release manually Unscrew the push button key 1 2 turns which represents a distance of approximately 1 5 mm Jam nut key 3 Adjusting the releasing pressure to max and min Max adjustment Same procedure as paragraph Adjusting the max only releasing pressure Min adjustment Admit an average pressure between max and min for example regulator set point pressure Set the detection stage Admit a pressure equal to the min releasing pressure required Screw the hook key 2 progressively until detection stage release Jam nut key 6 Check the pressure value at the releasing point adjust if necessary 11 Type OS2 MAINTENANCE BMS Control Remove the upper case The safety valve and pressure accessories are subject EM zs ie spanner e to normal wear and must be inspected periodically and flat spanner 8 rep
6. under or over pressure in the controlled gas network It may be mounted on systems of DN 25 to DN 150 and up to PN 100 It is tight shut and submersible It may be connected to an explosion proof contact intrinsically safe amp ERANcEL Type OS2 Figure 1 Type OS2 MECHANISM BOX BM The mechanism box is designed to close a slam shut valve The operation is ensured in two successive stages a detection stage and a power stage The separation between the detection stage and the power stage provides maximum precision indifferent of working pressure slam shut valve diameter and gas flow After activation of the slam shut valve due to over or under pressure the mechanism box must be reset manually The complete system is available on request only sealed with lead and wire SAFETY MANOMETRIC BOX BMS The pressure data is transformed into a displacement by a safety manometric box Type BMS 1 mounted on the mechanism box BM This displacement is used to activate the detection stage of the mechanism box in the case of overpressure over or underpressure or underpressure condition In certain configurations a second box may be used Type BMS 2 ey EMERSON D103683X012 Type OS2 LABELLING S rie o N Serial FRANCEL Ressort Spring See Table 1 PSD BMS AG maxi See Table 1 See Table 1 mm A bar Figure 2 Max Pressure Triggering Ta
7. 9 Table 14 Max Only Spring Adjustment Ranges BMS SPRING MAX ONLY INTERVALS Wdso setting bar A1 Type Size Ene Mm Code Max low Recommended range hi point Max low Max high bar possible point point 2 0 113 195 0 010 0 015 0 035 0 004 2 5 113 196 0 025 0 040 0 080 0 005 3 0 113 197 0 045 0 080 0 140 0 010 3 5 113 198 0 070 0 070 0 240 0 014 162 10 4 0 113 199 0 115 0 140 0 380 0 018 Diaphragm 5 0 113 201 0 140 0 300 0 750 0 050 MAX ONLY 5 5 113 202 0 250 0 600 1 3 0 080 6 5 114 139 0 450 1 2 2 3 0 170 4 5 113 200 1 0 2 0 5 1 0 350 071 20 5 5 113 202 2 1 4 0 11 0 0 700 6 5 114 139 4 0 8 0 16 0 1 6 5 5 113 202 16 0 16 0 22 0 3 0 027 100 6 5 114 139 22 0 22 0 40 0 6 5 Piston 5 5 113 202 40 0 40 0 55 0 7 0 017 100 6 5 114 139 55 0 55 0 100 0 12 0 5 5 113 202 5 5 11 0 22 0 1 6 236 35 Bellows 6 5 114 139 8 3 16 0 35 0 2 5 315 72 5 0 113 201 17 5 35 0 72 0 5 0 Table 15 Min Only Spring Adjustment Ranges BMS SPRING MIN ONLY INTERVALS Wdsu setting bar A1 Type Size rios pue Code Min low Recommended range m point Min low Min high bar possible point point 2 0 113 195 0 010 0 015 0 035 0 004 2 5 113 196 0 025 0 040 0 080 0 005 3 0 113 197 0 045 0 080 0 150 0 010 3 5 113 198 0 070 0 070 0 240 0 014 162 10 4 0 113 199 0 115 0 150 0 400 0 018 Di
8. EX 3m wire Black Blue Brown Wires C2 i P IP 68 pou Explosion proof connector box PE explosion proof 3 4 5 Screwed wiring C3 Intrinsical safe IP 68 Intrinsical safe tight shut connector A B Cc Welded wiring WIRING ol BU BI BN NF gt BK BU NO BK BN NF Normally closed NO Normally opened SAN v NF BK 3 BU 4 NO gt BK 3 BN 5 NF BK ABU B NO BK A BN C Version C1 connection Explosion proof connection with cable and tight shut packing gland Version C2 connection Explosion proof connection with explosion proof connector box Version C3 connection Explosion proof connection with sealed connector for intrinsic safe Figure 16 Different Versions of BM Connections SAFETY MANOMETRIC BOX BMS DESCRIPTION AND SPARE PARTS SAFETY MANOMETRIC BOX BMS BASE SAFETY c MANOMETRIC BOX 1 TYPE BMS 1 4 HOOK KIT SAFETY MANOMETRIC BOX 2 YPE BMS 2 HOOK KIT N16 Figure 17 BMS with Diaphragm SAFETY MANOMETRIC BOX BMS BASE SAFETY MANOMETRIC BOX 1 TYPE BMS 1 HOOK KIT ES s SAFETY MANOMETRIC y Sure BOX 2 TYPE BMS 2 HOOK KIT N17 Figure 18 BMS with Piston SAFETY MANOMETRIC BOX BMS
9. ISTICS mm AG 2 5 Diaphragm or bellows AGS5 Piston Memorization No memorization sass Resistance to vertical shocks 4J 20 shocks Resistance to pendular shocks 9 81 J 20 shocks Sealing IP 67 Temporary immersion Maximum operating pressure PSD 100 bar Operating temperature 30 C to 71 C Maximum valve travel 50 mm DIMENSIONS AND WEIGTHS Table 2 Dimensions and Weights Dimensions mm a Type Weight kg A BM1 For 1 BMS 2 5 BM BM2 For 2 BMS 120 162 Diaphragm 71 Diaphragm 185 i BMS 27 or 17 Piston B 236 Bellows 315 Bellows Y For a Type OS2 with one BMS add the weight of the BMS to that of the BM 1 For a Type OS2 with two BMS add the weight of the two BMS to that of the BM 2 1 N05 7S 9 Figure 9 Dimensions 6 3 5 DESCRIPTION AND SPARE PARTS BM Table 3 Mechanism Box Assembly 4 Ca ease ee ze xus Figure 10 Mechanism Box for One BMS Mechanism box 181 067 181 068 Cap including indicator O ring and screw new 181 328 1 version 06 2007 interchangeable New cap O ring 145 430 2 Mechanism box casing 142 930 144 071 Box gasket 142 930 2 BMS screw 402 018 BMS sealing screw O rings Non c
10. Instruction Manual NTAOS20007 May 2014 RELEASE RELAY CONTENTS Release Relay Type OS2 see 1t03 lalige i eio Me 1 Mechanism BOX ssssssssssseseeeneeenee nennen 1 Safety Manometric BOX seee 1 Labelling ER 2 Types of Installation sssn 2 CharacteristiCS isere niea 3 Dimensions and Weights csecsen 3 Mechanism Box BM see 3 to 6 Description and Spare Parts eee 3 Operations esr Ere ee eile 4 Connections e TEE 4 Materials oi csi ssteszccgeccee teen eiveasvnntetei eetaceciaseenssneatevensetas 4 COMMISSIONING es esecescasrtmessasth steeanarecgeseaaecteccesteaicszeareate 4 Maintenance 4 2 ni ivi den era tee een irenda eaii 5 joli rip P rer reer 5 Safety Manometric Box BMS sees 6 to 12 Description and Spare Parts ane 7 Siero areia giia eieaa beatae 7 CONMECUONS E M 7 Spring Adjustment Range ee 8 iMaterals uccisi eceieeicad ate se Lec 10 Adj stment 2 ceti peior cree eee 10 Maintenance sssssssssseeeene eene nns 12 INTRODUCTION The Type OS2 Release Relay consists of a Mechanism Box BM and one or two Safety Manometric Boxes BMS Its function is to provoke the activation of a slam shut valve which may be stand alone Type OSE integrated in a regulator Types MP MPS DRPNPIL EZH DRPN and EZR or integrated in a Type K1000 K3000 in the case of
11. S 1 Min Only One Type Releasing screw Active Neutral Active BMS BMS 1 Hook Neutral Active Active fo ry Type Releasing screw Active x Two BMS 1 Hook Neutral Y SS S BMS Type Push button Active Neutral Active I SN BMS2 Hook Neutral Active Active N N21 s OPERATION BMS m Figure 22 Type BMS 1 Max Min The pressure of the network to be protected pushes the diaphragm piston or bellows The force resulting from this opposes the force adjustable coming from the setpoint Table 12 Max Pressure Releasing spring When pressure varies the detection rod moves and Type BMS 1 Type BMS 2 provokes releasing by max or min pressure Pressure Releasing screw Push button Normal Without D1 pin contact Without D2 pin contact CONNECTIONS BMS Ecl e Increase With D1 pin contact With D2 pin contact On the mechanism box 2H M6x16 screws Setpoint Rotation of releasing stem and 1st stage trigger code 402018 Flat O ring and tight shut O rings 1 4 NPT screw 8 10 mm The sensing line must be connected downstream of the regulator BM sealing On the manometric box Recommended tube Table 13 Min Pressure Releasing Type BMS 1 Type BMS 2 Pressure Hook Hook Normal Without D2 pin contact Without D1 pin contact Decrease With D2 pin contact With D1 pin contact Setpoint Rotation of releasing stem and 1st stage trigger Type OS2 SPRING ADJUSTMENTS RANGES BMS See definitions on page
12. aphragm 5 0 113 201 0 140 0 300 0 650 0 050 MIN ONLY 5 5 113 202 0 250 0 600 1 15 0 080 6 5 114 139 0 450 1 1 2 0 0 170 4 5 113 200 1 0 2 0 4 7 0 350 071 20 5 5 113 202 2 1 4 0 9 5 0 700 6 5 114 139 4 0 8 0 14 4 1 6 5 5 113 202 16 0 16 0 19 0 3 0 027 100 6 5 114 139 19 0 19 0 38 0 6 5 Piston 5 5 113 202 38 0 38 0 50 0 7 0 017 100 6 5 114 139 50 0 50 0 90 0 12 0 5 5 113 202 5 5 11 0 16 0 1 6 236 35 Bellows 6 5 114 139 8 3 16 0 28 0 2 5 315 72 5 0 113 201 17 5 28 0 65 0 5 0 Type OS2 Table 16 Max and Min Spring Adjustment Ranges BMS SPRING MAX and MIN INTERVALS Wdsu setting bar A1 and A2 Type Size prs yug Code Mom Max high M A2 possible point bar bar 2 0 113 195 0 010 0 035 0 004 0 010 2 5 113 196 0 025 0 080 0 005 0 025 3 0 113 197 0 045 0 140 0 010 0 050 T 3 5 113 198 0 070 0 240 0 014 0 060 4 0 113 199 0 115 0 380 0 018 0 150 MAX AND Diaphragm 5 0 113 201 0 140 0 750 0 050 0 350 MIN 5 5 113 202 0 230 1 3 0 080 0 600 6 5 114 139 0 450 2 3 0 170 1 1 4 5 113 200 1 0 5 1 0 350 2 5 071 20 5 5 113 202 2 1 11 0 0 700 5 5 6 5 114 139 4 0 16 0 1 6 10 0 027 Piston Um Not possible with only 1 BMS 238 55 5 5 113 202 5 5 16 0 1 6 10 0 Bellows 6 5 114 139 8 3 28 0 2 5 20 0 315 72 5 0 113 201 17 5 65 0 5 0 33 0 DEFINITIONS Table 17 Definitions PSD box Maximum operating pressure for box Pd Nominal downstream regulato
13. ille BMS size S rie o N Serial FRANCEL Ressort Spring See Table 1 PSD BMS AG maxi See Table 1 bar See Table 1 mm Wdsu Wdso At bar Figure 4 Max and Min Pressure Triggering See Tables 14 15 and 16 for other values TYPES OF INSTALLATION Mounting on horizontal pipeline only Top Mounted stand alone valve TYPE BMS 1 Figure 5 BM 1 Mechanism Box with One Safety Manometric Box Type BMS 1 NO2 Figure 7 BM 2 Mechanism Box with Two Safety Manometric Boxes Types BMS 1 and BMS 2 See Table 1 PSD BMS S rie 0 N Serial AG maxi FRANCEL Ressort Spring mm See Table 1 See Table 1 Wdsu A bar Figure 3 Min Pressure Triggering Table 1 Type OS2 Pressures SIZE 162 071 027 017 236 315 PSD 10 bar 20bar 100 bar 100 bar 35 bar 72 bar AG max 2 5 2 5 5 5 2 5 2 5 Bottom Mounted intergrated valve and regulator TYPE BMS 1 N03 Figure 6 BM 1 Mechanism Box with One Safety Manometric Box Type BMS 1 TYPE BMS 1 N04 o0 BM2 d b BMS2 Figure 8 BM 2 Mechanism Box with Two Safety Manometric Boxes Types BMS 1 and BMS 2 Type OS2 CHARACTER
14. int Pdo 2 Pd max A1 Pdu 2 Min lowest point possible Pdu lt Pd min A1 Pdu Pdu lt A2 Type OS2 Note When the setpoint max or min falls between the lowest and lowest point possible the precision may pass into a superior range example AG 2 5 gt AG 5 If the point value is too close to that of the Pd the option RJGI tripping is recommended consult factory In the case of two safety manometric boxes BMS both boxes should have a PSD gt to the highest Pdo SELECTION OF BMS AND SPRINGS Choose the type of safety manometric box BMS according to PMS the type of releasing precision Choice of springs Max or Min only Take the spring with the highest point directly superior to the releasing pressure required Max and Min Take the spring with the highest maximum point superior to the maximum releasing pressure required or with the lowest point inferior to the minimum tripping pressure required Table 19 Choice of BMS and Springs PSD Diaphragm Bellows Piston 0 to 20 20 to 72 72 to 100 AG 2 5 AG5 Max only Min only Max and Min Choice between piston regular and bellows optional Bellows are recommended if you require a small gap between releasing pressure inlet pressure and exact precision Pistons do not facilitate minimum and maximum releasing MATERIALS BMS Table 20 BMS Material
15. laced if necessary BMS piston 27 17 key 5 BMS bellows 236 315 key 5 Slam shut releasing External tight shut Impulse part diaphragm bellows or piston Disassemble the set plate counter plate flat spanner 17 and pliers or Remove the bellows or piston and guide manually The frequency of inspections checks and replacement depends on the severity of service conditions and must comply with the national or industrial codes standards Assembly Proceed in reverse order to disassembly and regulations recommendations applicable BMS torque values Disassembly Upper spring case manometric box Unscrew the connector form the sensing line PMS ine 8 Nem Remove the safety manometric box BMS ihe ori ann Unscrew the blocking nut on the adjustment BMS piston 27 17 Tum BMS bellows 236 315 6 Nem screw manually 3 Unscrew the adjustment screw resetting tool BMS 162 and 071 nut diaphragm plate 20 Nem Remove the hook or plate depending on the type of Type BMS 1 or 2 from the detection rod flat spanner 7 Industrial Regulators Natural Gas Technologies TESCOM 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 011 971 4811
16. nism releasing Packing gland is tight shut Yoke greasing Disassembly Check that assembly is not under pressure Manual release of slam shut Figure 14 Manually press on the releasing stem pin D1 or D2 Figure 14 key 1 parallel to the BMS axe Unscrew the travel stop screwdriver Unscrew the BM fastening screws flat spanner 11 screw 7 and 13 or 14 screw 8 Disassemble the mechanism box BM from the connector by unlocking the yoke Assembly Proceed in reverse order to disassembly OPTIONS BM Remote alert on BM1 or BM2 Detects 2nd stage releasing power Remote control Atmospheric solenoid valve releasing by min pressure for max releasing pressure of 30 bar Safety manometric box BMS activated with a pneumatic or electro pneumatic impulse Manual control on BM2 with 1 Type BMS 1 only Push button connected at the same place as a Type BMS 2 Type OS2 Contact Table 8 Mechanism Box BM Connections AC DC Max intensity 7 0A 0 8A Max tension 400 V 250V Protection EEx d IIC T6 Tightness IP 66 Temperature 29 C 71 C Fastening 2 M3 screws Cable 3 wires black brown blue HO5VVF 3 x 0 75 mm D 6 5 mm Table 9 Mechanism Box BM Versions Version Installation Sealin Connection Mechanical Connection Electrical connections x 5 Common NF NO Connection co f IP 68 Without 1 2 NPT cap I C1 Explosion proof IP 68
17. on max travel of slam shut valve A 15 mm travel B 35 mm travel C 50 mm travel Mechanism box BM intervention To access the box the cover must be removed When unscrewing the nut a circlips is used to remove the O ring The cover is held on by one screw which can be unscrewed manually or using a socket screw key recommended torque for optimal shutoff 6 N m Resetting To reset the slam shut after the fault has been settled the 1st mechanism stage must be reset by manually turning the 1st stage trigger If the slam shut has an internal bypass the cam must be slightly turned using a resetting key to bypass If the slam shut has an external bypass a bypass valve will be used In both cases Wait for the pressure to be equalized before resetting the 2nd mechanism stage When resetting the 2nd mechanism stage opening of the valve a reset key is used delete Table 7 Packing Gland Material Body Bronze Control rod Stainless steel Chromium plating Truarc ring Nitrile NBR Never use an extension pipe with the reset key when resetting the 2nd stage max normal torque 16 Nem never go over 32 Nem AUTHORIZED PERSONNEL ONLY Risk of injury After rearming remove the reset key from the stem Do not put fingers in or near the reset mechanism area MAINTENANCE BM Tools Spanner 11 screw 7 and 13 or 14 screw 8 Screwdriver Control 1stand 2nd stage mecha
18. onnectable brace vent 27A5516X012 i Vent link for 8 x 10 tube 406 526 Nog ees iilius Figure 11 Mechanism Box for Two BMSs Fixed bolt axe do not dismount 142 920 6 Bolt 181 043 Truarc O ring 406 128 Travel stop 140 324 CONNECTIONS i Damper 127 692 a Mechanism 181 041 Table 4 Connection Types UIS eer Gers A02 312 Non connectable Plastic vent with screen Sy v Hesesing tool 242 815 Connectable Link 8 10 tube UA NEE Sold as a set ref n 197 351 Items in bold are spare parts Contact Box exit 1 2 NPT Type OS2 DESCRIPTION AND SPARE PARTS BM A IU P4 ao Figure 13 Type VSE Packing Gland Figure 12 Standard Packing Gland Table 5 Packing Gland Assembly Packing gland Description Valve Type OSB Type VSE Standard Assembly Packing gland and stem 181 040 181 040 Packing gland 144 126 O ring 400 514 400 505 400 514 O ring 400 221 I Fastening screw H M7 402 028 402 028 Fastening screw H M8 402 036 402 036 Flat washer 7 405 005 405 005 Flat washer 8 I 405 006 405 006 Items in bold are spare parts OPERATION BM The detection stage consists of two parts The releasing stem key 1 and The 1st stage trigger key 2 Through the intermediate of the safety manometric box BMS the pressure provokes a pin mo
19. otice Emerson Process Management 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 product remains solely with the purchaser KS O M T Officina Meccanica Tartarini S R L R E A 184221 BO Cod Fisc 00623720372 Part IVA 00519501209 N IVA CEE IT 00519501209 ay Cap Soc 1 548 000 Euro i v R I 00623720372 M BO 020330 ww Francel SAS SIRET 552 068 637 00057 APE 2651B N TVA FR84552068637 RCS Chartres B 552 068 637 SAS capital 534 400 Euro E M E RSO N Dra a e Emerson Process Management Regulator Technologies Inc 2007 2014 All Rights Reserved FrO agement
20. procedure as paragraph Adjusting max only releasing pressure Min adjustment Admit an average pressure between max and min for example regulator set point pressure Set the slam shut Admit a pressure equal to the min Pd min releasing pressure required Adjust the hook key 2 by progressively moving nuts key 6 and key 7 until it releases Jam nuts key 6 and key 7 Check the pressure value at the releasing point adjust if necessary Type BMS 2 with 1 Max Only Type BMS 1 Releasing by Max Only Adjusting the max push button Remove the hook key 2 Then in the following conditions no pressure in the BMS setpoint spring compressed so that the distance between the push button key 1 and the pin D2 no longer increases Adjust the push button key 1 to X 1 5 mm detection stage set Jam nut key 3 ADJUSTMENT D1 m G gt D2 MAX ONLY TYPE BMS1 4 B Type OS2 Adjusting the max only releasing pressure Same procedure as paragraph Adjusting the max only releasing pressure Releasing by Min Only Adjusting the min only releasing pressure Remove the max push button key 1 or screw it tight to neutralize it Jam nut key 3 Then in the following conditions setpoint spring decompressed adjustment screw key 5 unscrewed pressure equal
21. r pressure Pd max Maximum downstream regulator pressure normally closing regulator pressure Pd min Minimum downstream regulator pressure disturbance in function with flow and or inlet pressure is to be considered Pdo Maximum releasing pressure Max high point High regulator pressure at maximum Max low point Low regulator pressure at maximum remaining within the accuracy class Max low point possible Low regulator pressure at furthest maximum point precision is not guaranteed Pdu Minimum releasing pressure Min high point High minimum regulator pressure Min low point Low regulator pressure at minimum remaining within the accuracy class Min low point possible Low regulator pressure at furthest minimum point precision is not guaranteed Wdso Overpressure specific range obtained from slam shut valve Wdsu Underpressure specific range obtained from slam shut valve A1 Minimum difference allowed between Pdo and Pd max and or between Pdu and Pd min A2 Maximum difference allowed between maximum and minimum releasing pressure SELECTION GUIDE LINES PRESSURE LIMITATIONS Table 18 Pressure Limitations Max Only Min Only Max and Min Pdo lt Max high point Pdo 2 Max low point Pdo 2 Pd max A1 Pdo lt PMS box BMS Pd max lt PMS box BMS Pdu lt Max high point Pdu 2 Min low point Pdu 2 Pd min A1 Pdo s PMS box BMS Pdo s Max high po
22. t Unscrew the adjustment screw key 5 until detection stage release Check the pressure value at the releasing point adjust if necessary Jam nut key 4 screw and pin D2 Releasing by Min Only Adjusting the releasing screw and hook Free the min hook key 2 Then in the following conditions setpoint spring decompressed adjustment screw key 5 unscrewed pressure equal to the releasing pressure required for Pd min in the BMS adjust the releasing screw key 1 to X 2 mm detection stage set Jam nut key 3 Put the hook key 2 into position and adjust Y 1 5 mm with nuts key 6 and key 7 Jam nuts key 6 and key 7 Adjusting the min only releasing pressure Continue admitting the required releasing pressure Screw the adjustment screw key 5 until detection stage release Check the pressure value at the releasing point adjust if necessary Jam lock nut key 4 Releasing by Max and Min Diaphragms or Bellows Only Adjusting the releasing screw Free the min hook key 2 Then in the following conditions setpoint spring decompressed adjustment screw key 5 unscrewed pressure equal to the max releasing pressure required in the BMS adjust the releasing screw key 1 to X 0 mm detection stage set Release manually Unscrew the releasing screw key 1 2 turns which represents a distance of approximately 1 5 mm Jam nut key 3 Max adjustment Same
23. vement D1 or D2 which provokes the rotation of the releasing stem key 1 and frees the 1st stage trigger key 2 The power stage consists of two parts The 2nd stage trigger key 3 and The cam key 4 The 2nd stage trigger key 3 activated by the 1st stage trigger key 2 frees the cam key 4 which provokes the valve to close After release the resetting is ensured in two stages detection stage then power stage see commissioning Position indicator The position of the detection stage can be seen through the position indicator glass Memorization The releasing stem will only start moving when pressure approaches the pressure setpoint In all other cases it remains fixed Furthermore the assembly has a very high resistance to shocks If pressure approaches the setpoint the releasing stem tums but with the slightest shock or vibration it will go back to its initial position and pressure returns to normal The mechanism is said to be non memorizing The 8 10 tube should be angle shaped on the top to avoid water from entering 4 VALVE TRAVEL STOP Nog 2 Figure 14 Mechanism Details Resistance to shocks This assembly has a remarkable resistance to shocks 20 vertical shocks of 4 J and 20 pendular shocks of 9 81 J with pressure close to setpoint for example 186 mbar for a setpoint of 200 mbar CONNECTIONS BM Fixation BM Connector H M7 or H M8 screws 16
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