Emerson EZH and EZHSO Series Pressure Reducing Regulators Instruction Manual
Contents
1. U er KA 8 J LI i R Pu Inlet pressure L Pd Outlet pressure Short IP Pd Pm Modulated pressure RP Pilot Reject IP Pilot Impulse IS Slam Shut Impulse Long IP Figure 4 Principle of Operation with Compact Pilot System Type K1000 K3000 and EZR Regulators The regulator opens due to the increase loading of the modulated pressure Pm Opening The flow demand increases the decrease in outlet pressure Pd is registered by the pilot sensing element Forced by the action of the control springs the pilot then the pre expansion relay open The pre expansion pressure Pup feeds the pilot The modulated pressure Pm is fed to the pilot through the actuator diaphragm The regulator OPENS Closing The flow demand decreases the increase of the outlet pres sure Pd is registered by the pilot sensing elemeni The increased outlet pressure overcomes the force of the control spring the pilot then the pre expansion relay close The modulated pressure Pm bleeds through the reject pilot RP The regulator CLOSES Standard Pilots Hard Trim Pilot Systems continued Principle of operation based on BSL 85 Pilot System Fail to Close Version Pu Pd Pm RP IP IS R1 F1 RM1 RP1 PR1 PM Inlet pressure Outlet pressure Modulated pressure Pilot Reject Pilot Impulse Slam Shut Impulse Pi2. j ES b A j e L T G T fe fee 27 x L j T TT r 1st necessity parts 19 Standard Pilots SPARE PARTS continued Manometric Boxes O 2 Jet 4 Pt J 5 Li CD Figure 15 BMP 071 114 162 Figure 16 BMP 236 222 227 8 o np TG Dau N A e RES e SC Es 5 Ors 2 J r 25 En dl Gei Ti Figure 17 BMP 114 DA 2 d
3. E E Figure 18 BMP 114 DR Figure 19 BMP 114 MD Standard Pilots SPARE PARTS continued Table 14 Spare Parts for Nozzles NOZZLE TYPE PRE EXPANSION RELAY PILOT Circul Circular O pre 3 2 E sl 1 O ring Vf Transmission B Applications T 25 to 80 bar o EL ru o 181250 181083 Circular L Je mark d 3 2 ADGE 2 O rings 181292 h r d 3 2 ADGT 1 O ring 181097 n 0 e 0 1
4. 3SNVd 3ATVA 431134 dILINONVN PILOT SETTING RANGES continued Di i 001 ON vit ON vit 0 t Q 2IZZON WALSAS 1O Tld diN uiGeudeiq 00 09 01 00 Ap 00 0S lt SAx0 9g 00 Zb 0 00 GE 00 Ob 00 GC 0 00 8L 00 et ON Z3 NILH39 O y VO vith 00 8 01 OS OL 00 91 ONdIN uiGeudeiq 00 09 01 00 Ap 00 0S SMO 2g 00 r 01 00 SE OO Op 00 GC 01 00 8L 00 ct 00 81 0 OG OL 00 91 wbeiudeiq 00 09 91 00 AE 00 0S SMO 2g 00 Zy 0 00 se OU Ob 00 GC 01 00 8L 00 ct g 9 00 wGeudeid 00 81 01 05 01 00 91 uiGeudeiq d vil 00 09 01 00 ZE 00 0S 00 01 00 se 00 Op SMOUeg 00 G 01 00 81 00 ce 00 81 0 0S 0L 00 91 smojj g ww ueq pd d L Q SM asa od L ofuex IBUIUION SHOLVINDIY b 2IZZON NOISSINSNVUL ed pd AV134 NOISNVdX3 3Hd uBeiydeiq tO rO cO LO 18 Standard Pilots SPARE PARTS Table 13 Spare Parts Figures 15 to 19 DIAPHRAGM BMP SIZE BELLOWS BMP SIZE aen PIAPHRAGMEMPSIZE 1 BELLOWSBMPSIZE m e m suon won memo e e m e pene une vena vom vm vero no so vene pie we ven ws me w o se vr ch DREES DER lt eee re femme vos rue ae a we w ou e ee see se oo ee rese see Dn fee Tee RI ehe EES e DE j j j e ohe e e _ ICR G _ ee fee E e j T T T b C e TT ee Ep J EES eee e fe ese j j C ehe j EE b A
5. 2 turn All settings available See table 5 INSTABILITY Progressively close without completely closing Open by successive fractions Decrease the pre expansion by successive fractions Look for the best position between 1 4 and 2 turns Open by successive fractions Decrease the pre expansion by successive fractions LACK OF SLOW REACTION PRECISION Open as wide as possible No incidence Close by successive fractions Increase the pre expansion by successive fractions Progressively open No incidence Close by successive fractions Increase by pre expansion by successive fractions A107 Standard Pilots PILOT SETTING RANGES Table 8 Distribution Regulators Range eq Gumes w SATWA 431134 Gumes IXe eq FONVU UIL 3INONVIN eq dSd ADVLO1ld Bnjd e Aq posedei pue p AOoUu81 SI BAJeA J 1 oU Weg 8 gt pd pue Jeq O1 gt Nd Jl SION wubeludeig uBeiydeiq BS Oc D D D ww a AV134 NOISNVdXa aud 1eq Pd SYOLVINDAY NOILNAIULSIA A108 15 Standard Pilots PILOT SETTING RANGES continued Table 9 Transmission Regulator Range A109 lt COG 100 Io 9EC OZ 00 0 OV S ER i K 00 0 EEN EEN 001 0 ve 9L 0 00 0 S ii K 00 0 G OV kis ER ae eq Buim s XEN N N LO LO CO oO O O N N O SUEIQUAIN O wz O lt GOG Loo DEG 0
6. produit Francel incombe uniquement l utilisateur EMERSON Francel S A 2007 Tous droits r serv s Pro Cess Ma nagement
7. 0 09 01 00 Zt 00 Op 00 t 01 00 Gr 00 0t 00 Gr 0100 8L 00 ct I I ON Z3 NI1434 O Vd vil 00 81 0 0S OL 00 91 ONdW 0 SINOS LO CO N LO LO mM O st O st Te Mm w mM st co N co lt F N oz ZO SUBIQUISI OL 00 09 0100 Zb 00 0S OZ COG 00 f 0 00 SE UO Ob SMO 9q 00 81 0 OS OL 00 91 968 a YLL p O lt COG Loo SMO 9g N st LO CO o io to o io to o o io 19 o io io Lo 10 10 tO LO CO LO LO O LO LO O LO LO LO LO O cO O N TS N O LO Mm CO ap N O cO 00 Hd tit whesydeiq zaoo ooz oosrooso oa za BEE uBeiydeiq st a LO LO LO c O lt cO N wz O lt Mm O wz c CN LO st LO0 CO c N N tO w lt e lt F N O lt e kr cO c CN CO N st N LO LO lt c O 222 Lez SMO I8g 9 Z Go 00 GW vit WBeiydeig 222 LZZ SMO I9q S g 9 00 GIN yLL wbeiudelq cu eq adh eh d L abuey Be SHO1V1N934 dee Tr T eq Gumes M aSd Oth SIZZON Ed 21ZZON NOISSINSNVUL ueq pd eq J NVY aa3LIWONVIN AATVA 431134 WALSAS 1O Tld AN 14d NOISNVdX3a a d 16 Standard Pilots PILOT SETTING RANGES continued Table 10 Transmission Regulators Working Monitor Pd bar TRANSMISSION PRE EXPANSION RELAY PILOT SYSTEM
8. 108 Filter O ring 401308 Cap O ring 400517 Filter cap 118188 Reducer 408208 Filter holder 144885 Cap 408309 43 408556 Spring 118189 A117a F tee Table 18 Relief Valve Codes SETTING RANGE bar CODE A118 Tableau 19 Manometer Codes READING RANGE CORE bar Back Plug Lower Plug an mmm am sso A119 Relief Valve Setting factory set Normal or Monitor Assembly Spring Pd max Pup max 1 bar MPNO Assembly Spring Pd max Pup maxi differential 1 3 bar 1 bar EZHFO EZHSO Assembly Spring Pd max Pup maxi differential 2 bar 1 bar Working Monitor Assembly Spring Pi max Pup maxi differential 1 bar CPV Assembly Pi max induced by the meter Pup maxi differential 1 bar Manometric Ranges Normal or Monitor Assembly Spring Pd max Pup max 1 bar 0 75 MPNO Assembly Spring Pd max Pup maxi differential 1 3 bar 1 bar 0 75 EZHFO EZHSO Assembly Spring Pd max Pup maxi differential 2 bar 1 bar 0 75 Working Monitor Assembly Spring Pi max Pup maxi differential 1 bar 0 75 CPV Metering Pi max induced by the meter Pup maxi differential 1 bar 0 75 23 Standard Pilots Note The max Pi induced by the meter may require a manometer set at a high range this may restrict the setting of the pre expansion differential However it is possible to install a precise manometer when setting by using an adapter on an avai
9. 20 0 40 0 25 0 50 1 20 113199 113200 113202 114139 113200 113202 114139 113200 113202 114139 114139 114139 113202 114139 116816 113200 113202 114139 l Il Il Il Il 40 mam oe 2 mem os _ 28 mem oso _ pes mmm 10 2 mem 10 _ pss mem 20 _ pes mmm 4o 45 mem om pss mem 4o pes mum am _ pes mate 120 pes uns so 55 meo oso _ 28 mmm 1a _ so mem Lu 46 mo os 55 mem oso 65 nas 10a _ DR Differential can be set Was Set range applicable to a regulator for every BMP size A91 DA Differential can be adjusted MD Double Diaphragm Other ranges available please contact factory Standard Pilots LABELLING Tail B BMP size Weck Serie i SR kaa See Table 2 Ressort Spring 2 FRANCEL Wds Figure 2 Type BMP Label DESCRIPTION Figure 3 Body Labelling Body Description Figure 3 13 Pre expansion manometric box 1 Pilot feed 14 Pilot nozzle 2 Pilot impulse line IP 15 Pilot setting spring 3 Pre expansion manometer WE 4 Pilot reject RP 2 Connecting parts Figure 7 5 Exterior manometer or relief valve PD 20 Pre expansion relief valve 6 Mounting M8 21 Pre expansion manometer 22 Fitted filter Hard Trim Pilot System Figures 4 5 amp 6 23 Feed tap a
10. Instruction Manual NTAPILO805 Standard Pilot Systems June 2010 Francel Pilot Systems SUMMARY Jade e Le e EE 1 Ee e 2 LAKEN JR IRI RR E ROI RR E E E RIA PRR IE E 3 BECERA ametit antet RA 3 Principle of Operation 4 SCUO RR RR 10 COMMISSIONS deeg 10 OO a 13 UE de 2 u A 13 Pre expansion Determination 13 Pilot Setting Ranges 15 Spare PATIS out ae aaa dea e alo ni ela et 19 INTRODUCTION Scope of Manual This manual provides instructions for operation startup commissioning and spare parts ordering for the different Francel Pilot Systems Product Description Two Francel Pilot Systems are available e Compact Pilot Distribution Applications The compact pilot is composed of a manometric pre expansion box a manometric pre expansion pilot box and a pilot body e BSL 85 Pilot The BSL 85 pilot system is composed of a manometric pre expansion box a manometric pre expansion pilot box and two pilot bodies The BSL 85 permits all types of failure modes Transmission Applications The BMP pilots with standard diaphragm are FO e The BMP pilots with diaphragm bellows are FC e The bellows are flattened in the case of overpressure but with no leak to the outside K QERANCEL A90a BSL 85 Pilot A90b Compact Pilot Figure 1 France
11. RELIEF VALVE Nozzle dh 3 2 Tightshut Nozzle dh 4 0 MANOMETER RANGE REGULATOR S ae seta nel Range Type Fe Q Fil Type Taille Sol d Fil bar SIN Setting Pd bar mm bar mm bar bar 40 00 E 00 to 47 00 1 00 to 2 40 ELA am 4 8010 10 50 MP EP INES 16 00 10 50 to 18 00 32 00 18 00 to 35 00 50 00 47 00 to 60 00 40 00 35 00 to 47 00 50 00 47 00 to 60 00 114 DR Diaphragm d Bellows 6 5 are defined according to the Pi DS see table below 114 DA ou 6 5 iaphra PE 5 5 071 20 4 JET fe l DOS gt Diaphragm 114 MD d Bellows Diaphragm 114MD The manometer and relief valve 100 Table 11 Pi Range for Definition of Manometer and Relief Valve Values Pi bar TRANSMISSION PILOT SYSTEM MANOMETER Tightshut Nozzle 4 0 RANGE RELIEF VALVE REGULATORS Ta PS 4 bar Max Setting Setting g yp in c Gn bar bar 114 0 16 10 3 o 10 Diaphragm MPNO 4 80 to 10 50 5 5 EZH 071 20 0 40 24 3 a 16 00 10 50 to 18 00 23 40 EZHFO 32 00 18 00 to 35 00 DER oa o 6 5 A110 17 Standard Pilots LO CO LO CO ot abed ses uoneinfIuo9 o BUIP1099e p ulJ p SJE 9AJEA J 1 pue 9 9uoueu u Table 11 Transmission CPV Regulators LO cO LO CO EI EA 19 Bt I MO j ee ere O ade ne io G io wo Lo 10 io co iG io co 10 O O O eq 4eq ixen obelboy obelel 1eq
12. andard Pilots OPTIONS RPE Electric Heater The RPE is used for reheating gas supplying pressure reducing regulator pilots It avoids the inconveniences caused by freezing which occur during large pressure drops See instruction manual NTARPE ADGE 1 Pre expansion Exchanger The ADGE 1 replaces the standard pre expansion relay It permits the gas to be reheated beyond pre expansion without using external energy sources See instruction manual NTAADGE1 See table 3 for standard configurations Mass volume corrector Flow limiter Contact factory Remote control setting TERMS Failure Modes FO Fail to Open Regulator Opens in the case of failure mode The regulator tends to automatically open in the case of failure of the main diaphragm or when there is an interruption of the energy required for the displacement of the regulation unit FC Fail to Close Regulator Closes in the case of failure mode The regulator tends to automatically close in the case of failure of the main diaphragm or when there is an interruption of the energy required for the displacement of the regulation unit Equipment FO design EZHFO EZHSO BERTIN EZ NO MPNO FC design EZH BERTIN EZ MPNF Type BMP 114 MD Double Diaphragm Pilot Figure 5 The manometric box is equipped with two integral diaphragms The volume between these two diaphragms is related to the driving pressure of the actuator Failure of the upper d
13. ect tap PR2 Pre expansion Relay PA Active Pilot Figure 6a Type EZHSO Regulator with Type BSL 85 Pilot System Standard Pilots Boot Trim Pilot Systems Principle of operation based on Compact Pilot System uri l Pu Inlet pressure Pd Outlet pressure Pm Modulated pressure RP Pilot Reject IP Pilot Impulse IS Slam Shut Impulse S O vai PD SI E 3 Figure 7 Type EZR Regulator with Type Compact Pllot System The regulator opens with a decrease unloading of the modulated pressure Pm Opening The flow demand increases the decrease in the outlet pressure Pd is registered by the pilot sensing element Forced by the action of the control springs the pilot then the pre expansion relay open The pilot flow increases and becomes superior to that of the restriction tap key 27 The modulated pressure Pm bleeds to the oulet side through the reject pilot RP The regulator OPENS Closing The flow demand decreases the increase in the outlet pressure Pd is registered by the pilot sensing element The force applied on the pilot impulse is overcome by that of the control spring the pilot then the pre expansion relay close The pilot flow decreases and becomes inferior to that of the restriction tap key 27 The modulated pressure Pm increases The regulator CLOSES Standard Pilots Boot Trim Pilot S
14. iaphragm will cause balance between the driving pressure and the outlet pressure Failure of the lower diaphragm will cause evacuation the driving pressure to the atmosphere In both cases the equipment tends to close due to lack of driving pressure Fail to Close PRE EXPANSION DETERMINATION Table 4 Pre expansion per Regulator bar Superior to downstream pressure Pd A104 Table 5 Adjustable Pre expansion Differential for EZH EZH FO EZHSO MP Bertin EZ Working Monitor Regulator or CPV Metering MP Pd 12 Pd 2 4 Pd 4 8 BERTIN EZ Pd 1 2 Pd 2 4 Pd 4 8 Pd 4 8 A105 Table 6 Adjustable Pre expansion Differential for Type FO Regulators ACTUATOR NOMINAL Adjustable from 0 4 to 1 3 bar Adjustable according to size of actuator factory set A106 Standard Pilots Operating Instructions and Regulation Optimization Table 7 Operating Instructions and Regulation Optimization UNIT OR PARAMETER Modulated pressure valve key 25 Hard trim pilot systems Figures 3 4 5 Reject tap key 26 Pre expansion relay key 13 Pilot vent valve BMP 162 Boot trim pilot systems Figure 6 Feeding tap key 29 Pre expansion relay key 13 14 INDICATIONS Wide open All settings available except completely closed Open 3 4 turn All settings available See table 4 Open 1 2 turn All settings available except completely closed Open 1
15. l Pilot Systems Different connections permits the pilot to be used on a wide range of EMERSON Pilot Operated Regulators Two functional types of pressure reduction are available Hard Trim or Boot Trim Pilot System e Pressure Reduction with Actuator and Plug Pilot system loading by modulated pressure e Pressure Reduction with Diaphragm Plug Pilot system unloading by modulated pressure By simply changing the BMP manometric box or spring the setpoint range can be modified No dismantling tool is re quired for this operation except in the case of BMP DR DA MD or RJGI EMERSON Process Management Standard Pilots CHARACTERISTICS Regulators Transmission applications MPS MP EZH BERTIN EZ EZR OPERATING PRESSURE Distribution applications K1000 K3000 EZR CRONOS Obtainable inlet pressure PSD 85 bar Maximum obtainable pressure Pumax 100 bar Outlet pressure range Pd 0 01 to 60 bar Terms OPERATING TEMPERATURE TS 20 60 C Table 1 Previous and Present Used Terms Material Pilot body Steel czze Pilot Manometric Box BMP spring case Steel Pilot Manometric Box BMP cover Steel or Aluminium Connections Styles BMP connection 1 4 NPT tapped BMP vent 1 4 NPT tapped Table 2 Setting Ranges for Manometric Boxes wie imm Reference wmn Max Preexpansion Prot _ 162 5 0 25 1 20 0 50 2 40 1 00 1 00 2 00 4 00 2 00 4 00 8 00 12 00 30 00 0 50 1
16. lable tapping of the pilot s body To check the different values required for settings see below Spring Pd max see table 2 e Pup max see table 4 e Pup maxi differential see table 5 e Spring Pi max see table 2 e Pi max induced by the meter contact factory Natural Gas Technologies Regulator Division Emerson Process Management Z A La Croix Saint Mathieu 28320 Gallardon France Tel 33 0 2 37 33 47 00 Fax 33 0 2 37 31 46 56 Pour plus d information visiter www emersonprocess com regulators Le logo Emerson est une marque commerciale et une marque de service de Emerson Electric Co Toutes les autres marques appartiennent a leurs propri taires respectifs Francel est une marque appartenant a Francel S A une succursale d Emerson Process Management Les renseignements contenus dans cette publication sont pr sent s uniquement a titre informatif et bien que tout ait t fait pour assurer leur exactitude ils ne doivent pas tre interpr t s comme des garanties expresses ou tacites en ce qui concerne les produits ou services d crits ici ou leur usage ou applicabilit Nous nous r servons le droit de modifier ou d am liorer la conception ou les specifications de ces produits a n importe quel moment sans pr avis Francel decline toute responsabilit en ce qui concerne la s lection l utilisation ou la maintenance d un produit La responsabilit de la s lection de l utilisation et de la maintenance de tout
17. lot feed tap Filter Motorized Pressure tap Pilot Reject tap Pre expansion Relay Monitor Pilot 25 i Ei Lx gt a PI SF sas ii Lower Ck Diaphragm 5 Ni PM i RP1 EE e JAN V AN ARR A RM1 HE V fe RP IP Pu wp VE Pd p UR gt a IS l KN 7 V hu E O VA Figure 5 Type EZH Regulator with Type BSL 85 Pilot System Standard Pilots Hard Trim Pilot Systems continued In this case it is still possible to choose two types of regula Principle of operation based on BSL 85 Pilot System tors depending on their reaction in the case of failure mode Figure 6a the regulator spring tries to close the Fail to TAO OPEN VEG Open mode is managed by the appropriate pilot Pu Inlet pres
18. nd Boot Trim Pilot System Figure 7 3A San shui bypass tab if not incorporated E EE 25 Modulated pressure tap 11 Pre expansion nozzle 27 Restriction tap 12 Pre expansion setting spring 1 Hard trim pilot system only 2 Boot trim pilot system only Standard Pilots PRINCIPLE OF OPERATION Hard Trim Pilot Systems Principle of Operation based on Compact Pilot System D i So 3 resi O ao O B 00 _ E HI FP ALB Pil ot feed UD ber pu
19. pre expansion E O ring op i Distribution Applications 0 to 70 bar A a 2 O rings for pilot Cl L 181249 180373 181248 180372 0 O O b4E II 3 O rings e a F f esi UU Ui lt Circular Circular mark mark 181251 180826 21 Standard Pilots SPARE PARTS continued 24 26 A115b Figure 20 Adjustment Tap DI lb A116b Figure 21 Pilot Body Table 15 Adjustment Tap Spare Parts DESCRIPTION CODE 7 cone gauge with permanent leak 22 Table 16 Pilot Body Spare Parts DESCRIPTION CODE Cap O ring M10x150 cap A116a Standard Pilots SPARE PARTS continued 40 41 44 0000 000000 COO 43 36 97 a 45 99 EE EEN 0000060000900 8 8 38 A117b Figure 22 Filter Table 17 Filter Spare Parts DESCRIPTION CODE SPS filter body 144
20. rease recommended Lightly grease all threads molycot grease Flat spanner N 11 for BMP 162 N 8 for BMP 114 and 071 6 sided spanner N 5 for bellows BMP Standard Pilots Figure 9 Manometric Box BSL 85 Pre expansion Body Figure 10 Filter BSL 85 Pilot Body TS e per A98 Figure 11 Setting Tap A99 Compact Pilot Body Figure 12 Relief Valve Figure 13 Pilot System Body Types Standard Pilots Standard Connections Table 3 Standard Connections BERTIN EZ NO REGULATORS MPNO EZHFO EZHSO Assembly Type Working Monitor ADGE Version Working Monitor Stand alone Variable Pressure Reetz Working Monitor Contact factory Variable Pressure Metering CPV Principle A port plate causes loss in the load which causes flow increase The pressure between the regulator and the port plate increases with the flow The meter allows the flow to increase in m h N as the pressure increases when the Elements e Pilot System One pre expansion relay with adjustable differential flow is high BMP 114 DR ned One standard pilot Goal Increase meter dynamics Meter Determination of Characteristics e Port Plate Contact factory Pre expansion Standard Differential Pilot Pup Reject to Pi METER PORT PLATE REGULATOR A119 Figure 14 Port Plate St
21. sure Pd Outlet pressure Pm Modulated pressure RP Pilot Reject IP Pilot Impulse IS Slam Shut Impulse ID Differential Impulse R2 Pilot Feed tap F2 Filter RM2 Motorized Pressure tap RP2 Pilot Reject tap PR2 Pre expansion Relay PA Active Pilot Figure 6a Type EZHFO Regulator with Type BSL 85 Pilot System Standard Pilots Hard Trim Pilot Systems continued Figure 6b the regulator spring tries to open the Fail to Open mode is also managed by the regulator spring RP2 1900999099900 di 1 6900000000 RP Pd mm Pu Inlet pressure Pd Outlet pressure i Pm Modulated pressure I RP Pilot Reject IP Pilot Impulse IS Slam Shut Impulse R2 Pilot Feed tap F2 Filter RM2 Motorized Pressure tap RP2 Pilot Rej
22. tween inlet and outlet valves Every year e Disassemble the manometric boxes and nozzles e Control immediate spare parts e Change the fritted filter Tools Flat spanners 8 11 13 14 19 Six sided spanners 5 10 FRANCEL square spanner Flat screwdriver and screw M4 Manometric Box BM Figure 9 e Unscrew knob key 1 Manually e Unscrew screw key 2 Spanner e Remove impulse key 3 Check impulse element Control tightshut joints Pilot Body Figure 13 e Remove nozzle s pilot block s key 4 Screw M4 Clean valve and seat Control tighshut joints e Unscrew manometer key 5 Flat spanner no 14 e Remove flat ring key 6 e Unscrew relief valve key 7 Flat spanner no 19 Filter Figure 10 e Unscrew cap key 8 6 sided spanner no 10 e Remove filter key 9 Change the filter every year Adjustment Tap Figure 11 e Unscrew stop point key 10 Flat spanner no 22 e Unscrew needle key 11 Square spanner Control the seating of the seat and the needle Control the tighshut joint NOTE Install a cap or fill the point key 10 with grease for protection against aggression from the exterior Relief Valve depending on version Figure 12 Unscrew screw key 12 Flat screwdriver e Remove valve plug key 13 Check seat and valve plug Reassembly Complet the above operations in reverse order Lightly grease all rings silicone g
23. ystems continued Principle of operation based on BSL 85 Pilot System Pu Pd Pm RP IP IS Inlet pressure Outlet pressure Modulated pressure Pilot Reject Pilot Impulse Slam Shut Impulse NC FER al Ce We Close so IN s D wD Figure 8 Type EZR Regulator with Type BSL 85 Pilot System Standard Pilots STARTUP Respect the instructions given in the instruction manual of each regulator e Only qualified personnel through training or experience are authorised to install service or maintain equipment e Installation according to EN 12186 is recom mended e No modification should be made to the structure of the equipment drilling grind ing soldering e The equipment should ne receive any type of shock e The user should verify or carry out a pro tection adapted to the environment e Personal injury or equipment damage due to bursting of pressure containing parts may occur To avoid such injury or damage provide pressure relieving or pressure limiting devices to prevent service conditions from exceeding those limits e Physical damage to the regulator can break the pilot off the main valve causing personal injury and property damage due to bursting of pressure containing parts To avoid such injury and damage install the regulator in a safe location COMMISSIONING Disassembly Check the absence of pressure be
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