Emerson 92W Instruction Manual
Contents
1. 26A7897X012 26A7866X012 37A1545X012 37A1573X012 37A1597X012 CL300 RF 26A7835X012 26A7898X012 26A7867X012 37A1546X012 37A1574X012 37A1598X012 CL600 RF 26A7836X012 26A7899X012 26A7868X012 37A1547xX012 37A1575X012 37A1599X012 Key Description Part Number Key Description Part Number 12 Spring Spring Wire l NPS 1 DN 25 body 16A7849X012 23 Stem Seal Retainer Stainless steel NPS 1 1 2 DN 40 body 16A7911X012 NPS 1 DN 25 body 16A7857X012 NPS 2 DN 50 body 16A 7880X012 NPS 1 1 2 or 2 DN 40 or 50 body 16A7888X012 NPS 2 1 2 DN 65 body 17A1559X012 ep Piton 416 Stainless steel NPS 3 DN 80 body iin XOT NPS 1 DN 25 body 2 required 19A6005X012 NPS 4 DN 100 body 17A1611X012 NPS 1 1 2 DN 40 body 2 required 19A6006X012 ia eee iei NPS 2 DN 50 body 2 required 19A6007X012 NPS 4 DN 25 body 19A1378X012 NPS 2 1 2 DN 65 body 1 required 17A1564X012 NPS 1 1 2 DN 40 body I6A7912X012 NPS 3 DN 80 body 1 required 17A1590X012 NPS 2 DN 50 body 16A7881X012 NPS 4 DN 100 body 1 required 17A1615X012 NPS 2 1 2 DN 65 body 17A1560X012 25 Piston Ring PTFE NPS 3 DN 80 body 47A1587X012 NPS 1 DN 25 body 2 required 19A6010X012 NPS 4 DN 100 body 17A 012X012 NPS 1 1 2 DN 40 body 2 required 19A6011X012 14 Retaining Ring Steel NPS 2 DN 50 body 2 required 19A6012X012 NPS 1 DN 25 body Garantie NPS 2 1 2 DN 65 body 1 required 17A1565X012 NPS 1 1 2 DN 40 body IGA T9130 NPS 3 DN 80 body 1 required 17A2. Type 92W Main Valve Perform these procedures if replacing the piston s cylinder s stem s seals valve plug or seat ring All key numbers are referenced in Figure 5 except where otherwise indicated Instructions are given for complete disassembly and assembly Disassemble the main valve only as far as necessary to complete the required maintenance Then begin the assembly procedure at the appropriate step Note The regulator may remain in the pipeline during maintenance procedures unless the main valve body is replaced or removed for repairs Whenever a gasket seal is disturbed by removing or shifting gasketed parts a new gasket should be installed upon reassembly This is necessary to ensure a good gasket seal Disassembly 1 Disconnect all tubing and remove the pilot from the main valve 2 Remove the cap screws key 3 not shown from a cast iron body or stud nuts key 4 from a steel body and lift off the body flange 3 For the NPS 1 1 1 2 and 2 sizes DN 25 40 and 50 remove the top cylinder key 17 and pull out the top piston with attached stem and other parts Remove the hex nut key 41 lock washer key 40 top ring retainer key 26 and top piston ring key 25 from the top piston key 24 4 For the NPS 1 1 1 2 and 2 sizes DN 25 40 and 50 lift off the cylinder spacer key 21 and remove the stem seal retainer key 23 and stem seal key 22 from the spacer 5 Remove the cylinde
3. Additionally the pilot could be broken off the main valve by physical damage causing personal injury and property damage due to escaping liquid To avoid such injury and damage install the regulator in a safe location where it is protected from physical damage Liquid pressure control systems should be designed using good engineering practices to eliminate quick starting or stopping of the flow stream which can produce water hammer 1 Only personnel qualified through training and experience should install operate and maintain a Type 92W regulator Before installation make sure that there is no damage to or debris in the regulator Also make sure that all tubing and piping are clean and unobstructed Type 92W Table 1 Outlet Control Pressure Ranges OUTLET CONTROL PRESSURE RANGES PILOT CONTROL SPRING Psig bar COLOR CODE SEE PARTS Type 6492L Pilot Type 6492H Pilot Type 6492L Pilot Type 6492H Pilot LIST FOR PART NUMBER 2to6 10 to 30 0 14 to 0 41 0 69 to 2 1 Yellow 5 to 15 25 to 75 0 34 to 1 0 1 7 to 5 2 Green 13 to 25 70 to 150 0 90 to 1 7 4 8 to 10 3 Red Table 2 Maximum Outlet Pressures MAXIMUM EMERGENCY OUTLET PRESSURE IF EXCEEDED PRESSURE VESSEL INTEGRITY MAY NOT BE RETAINED AND PERSONAL INJURY OR PROPERTY CONSTRUCTION MAXIMUM OPERATING OUTLET PRESSURE DAMAGE COULD RESULT Cast Iron Main Valve and Pilot Body Steel Main Valve and Pilot Body j 150 psig
4. or 100 body size the pilot may be mounted as shown in Figure 6 so that the control line connection faces either upstream or downstream Locate the control line connection at least 10 pipe diameters away from the regulator or swage and ina section of straight pipe 7 9 Do notlocate the control line connection in a gate plug or check valve or in an elbow swage or other area of the pipeline where turbulence or abnormal velocities mav occur or in a large volume vessel that can cause noticeable control lag Install a shutoff valve not a needle valve in the control line to isolate the pilot during maintenance Install a pressure gauge in the control line or near the regulator to aid in setting the outlet pressure 10 With a pressure loaded or on off pilot connect 11 the pressure loading or on off piping or tubing to the 1 4 NPT connection in the tapped pilot spring case The pressure setting of the regulator is determined bv e The pilot control spring adjustment on a standard pilot or e The pressure loading device in conjunction with the control spring adjustment on a pressure loaded pilot In both cases check these settings to make sure thev are correct for the application Startup and Adjustment Note The maximum inlet pressure for a specific construction is stamped on the main valve nameplate Use pressure gauges to monitor upstream and downstream pressures during startup Type 92W CON
5. 2 DN 50 body NPS 2 1 2 DN 65 body NPS 3 DN 80 body NPS 4 DN 100 body Piston Spacer Steel NPS 1 DN 25 body NPS 1 1 2 DN 40 body NPS 2 DN 50 body NPS 2 1 2 DN 65 body NPS 3 DN 80 body NPS 4 DN 100 body Part Number 26A7870X012 27A1549X012 27A1577X012 27A1601X012 16A7839X012 1U625631192 1R281124052 1A454124052 1A440224052 1V5426X0012 16A7902X012 1R284831012 1A378131012 1R369031012 10330624072 1A377224072 10330624072 1A376024072 1A352024072 29A1379X012 26A7903X012 26A7872X012 27A1550X012 27A1578X012 27A1602X012 16A7842X012 16A7904X012 16A7873X012 27A1552X012 27A1580X012 27A1604X012 16A7844X012 16A7906X012 16A7875X012 27A1553X012 27A1581X012 27A1605X012 16A7845X012 16A7907X012 16A7876X012 17A1554X012 17A1582X012 17A1606X012 16A7846X012 16A7908X012 16A7877X012 17A1556X012 17A1584X012 17A1608X012 16A7848X012 16A7910X012 16A7879X012 17A1558X012 17A1585X012 17A1610X012 Type 92W Key 1 Body END BODY SIZE NPS DN t pere CONNECTION STVLE 1 25 1 1 2 40 2 50 2 1 2 65 3 80 4 100 NPT 26A7830X012 26A7893X012 26A7862X012 saci asas Cast iron CL125 FF 26A7831X012 26A7894xX012 26A7863X012 37A1543X012 37A1571X012 37A1595X012 CL250 RF 26A7832X012 26A7895X012 26A7864X012 37A1544x012 37A1572X012 37A1596X012 NPT 26A7833X012 26A7896X012 26A7865X012 zei m sas WESA CL150 RF 26A7834X012
6. 92W Pilot Mounting Parts Figure 6 Key 81 82 83 84 10 APPLY LUB SEALANT 39A3514 B COMPLETE TVPE 6492H PILOT 39A3515 B APPLV LUB SEALANT Description Loading Tubing Copper Pipe Nipple Steel Connector Brass Elbow brass 3 required for NPS 1 1 1 2 or 2 bodv size and 1 required for larger sizes DN 25 40 or 50 39A3514 B APPLV LUB SEALANT 32A4712 A A3505 COMPLETE TYPE 6492L PILOT Figure 4 Pilot Assemblies Part Number 0500201701W 1U264426232 15A6002X202 15A6002X162 Key 85 86 Description Inlet Tubing copper NPS 1 1 1 2 or 2 body only DN 25 40 or 50 Elbow carbon steel NPS 2 1 2 through 4 body only DN 65 thru 100 DETAIL OF TAPPED SPRING CASE WITH SEALED ADJUSTING SCREW Part Number 0500201701W 1B8608X0012 Type 92W APPLY SEALANT NPS 1 1 1 2 OR 2 DN 25 40 OR 50 BODY SIZE IA 11 GD 9 y FL ENSIS CORRECT ORIENTATION OF PISTON RING KEY 25 36A7960 D 37A1622 D NPS 2 1 2 3 OR 4 DN 65 80 OR 100 BODY SIZE Figure 5 Type 92W Main Valve Assemblies Type 92W 29
7. downstream demand increases the downstream pressure registered on the main valve piston s This allows the main valve spring to close the main valve plug reducing flow to the downstream system in response to the decreased demand With a pressure loaded or on off pilot the operation is the same as for a standard pilot except that the pilot control spring force on the pilot valve plug is aided by pneumatic pressure from the loading device or solenoid valve Maintenance Regulator parts are subject to normal wear and must be inspected periodically and replaced as necessary The frequency of inspection and replacement depends upon the severity of service conditions and upon applicable codes and government regulations Avoid personal injury or damage to property from sudden release of pressure or uncontrolled process fluid Before starting to disassemble e Isolate the regulator from the process e Release process pressure and e Vent the pilot supply and main valve loading pressures Types 6492H and 6492L Pilots These procedures are to be performed if inspecting cleaning or replacing any pilot parts or if cycling erratic control or too high or too low an outlet control pressure is noted Perform only those procedures in this section required to correct the problem Key numbers refer to Figure 4 unless otherwise noted Note Before performing any maintenance loosen the hex nut key 16 if used and turn the adjustin
8. 1591X012 NPS 2 DN 50 body GATED ONG NPS 4 DN 100 body 1 required 17A1616X012 15 Stem Nut Steel 26 Ring Retainer 302 Stainless steel NPS 1 DN 25 body RERET NPS 1 DN 25 body 2 required 16A7860X012 NPS 1 1 2 or 2 DN 40 or 50 body i inhu NPS 1 1 2 DN 40 body 2 required 16A7922X012 NPS 2 1 2 or 3 DN 65 or 80 bodv 1A413224122 NPS 2 DN 50 bod 2 required 16A7891X012 NPS 4 DN 100 body 4420124122 NPS 2 1 2 DN 65 body 1 required 17A1566X012 16 Cotter Pin Stainless steel NPS 3 DN 80 body 1 required 17A1592X012 NPS 1 DN 25 body 46A7930X012 NPS 4 DN 100 body 1 required 17A1617X012 NPS 1 1 2 or 2 DN 40 or 50 body 17A5574X012 28 Nameplate Stainless steel 16A7917X0A2 17 Cylinder 416 Stainless steel 29 Flow Arrow Stainless steel NPS 1 DN 25 body 2 required 16A7853X012 NPS 1 DN 25 body 1V105938982 NPS 1 1 2 body DN 40 2 required 16A7915X012 NPS 1 1 2 2 21 23 Di4 NPS 2 DN 50 body 2 required 16A7884X012 DN 40 50 65 80 or 100 body 1V106038982 NPS 2 1 2 DN 65 body 1 required 17A1561X012 30 Drive Screw Stainless steel 4 required 1A368228982 NPS 3 DN 80 body 1 required 17A1588X012 31 Led Plate Number 250 Sealant NPS 4 DN 100 body 1 required 17A1613X012 S poulids 2 kop ean not furnished 18 Cylinder Gasket Copper with regulator 1M524006992 NPS 1 DN 25 body 3 required 16A7854X012 32 Spring Seat Carbon steel NPS 1 1 2 DN 40 body 3 required 16A7916X012 NPS 2 1 2 DN 65 body LEO
9. 2 DN 50 body NPS 2 1 2 DN 65 body NPS 3 DN 80 body NPS 4 DN 100 body Cap Screw not shown Plate steel for cast iron body NPS 1 DN 25 body 4 required NPS 1 1 2 or 2 DN 40 or 50 body 8 required NPS 2 1 2 DN 65 body 8 required NPS 3 DN 80 body 8 required NPS 4 DN 100 body 8 required Stud Bolt B7 Steel for steel body NPS 1 DN 25 body 4 required NPS 1 1 2 or 2 body DN 40 or 50 8 required NPS 2 1 2 DN 65 body 8 required NPS 3 DN 80 body 8 required NPS 4 DN 100 body 8 required Stud Nut Steel for steel body NPS 1 DN 25 body 4 required NPS 1 1 2 or 2 DN 40 or 50 body 8 required NPS 2 1 2 DN 65 body 8 required NPS 3 DN 80 body 8 required NPS 4 DN 100 body 8 required Cage Cast Iron NPS 1 DN 25 body NPS 1 1 2 DN 40 body NPS 2 DN 50 body NPS 2 1 2 DN 65 body NPS 3 DN 80 body NPS 4 DN 100 body Valve Plug 17 4PH Stainless steel NPS 1 DN 25 body NPS 1 1 2 DN 40 body NPS 2 DN 50 body NPS 2 1 2 DN 65 body NPS 3 DN 80 body NPS 4 DN 100 body Seat Ring 416 Stainless steel NPS 1 DN 25 body NPS 1 1 2 DN 40 body NPS 2 DN 50 body NPS 2 1 2 DN 65 body NPS 3 DN 80 body NPS 4 DN 100 body Spiral Wound Gasket 316L Stainless steel and Graphite NPS 1 DN 25 body NPS 1 1 2 DN 40 body NPS 2 DN 50 body NPS 2 1 2 DN 65 body NPS 3 DN 80 body NPS 4 DN 100 body Bottom Stem Plate steel NPS 1 DN 25 body NPS 1 1 2 DN 40 body NPS
10. 2 NPS 2 DN 50 body 3 required 16A7885X012 NPS 400000 body be Siecle NPS 2 1 2 DN 65 body 1 required 14A5685X022 NPS 4 DN 100 body 17A1618X012 NPS 3 DN 80 body 1 required 17A1589X012 33 Plug Space steel NPS 4 DN 100 body 1 required 17A1614X012 NPS 2 1 2 DN 65 body LENT ONO Te 19 Body Gasket Copper NPS 3 DN 80 body 17A1594X012 NPS 1 DN 25 body 14A6785X022 NPS 4 DN 100 body 17A1619X012 NPS 1 1 2 DN 40 body 14A3384X022 34 Washer Carbon steel NPS 2 DN 50 body TAABCBEXO22 NPS 2 1 2 or 3 DN 65 or 80 body 17A1569X012 NPS 2 1 2 DN 65 body 17A1563X012 NPS 4 DN 100 body 17A1620X012 NPS 3 DN 80 body 13A0354X022 35 Groove Pin Stainless steel NPS 4 DN 100 bodv 14AB650X022 NPS 2 1 2 DN 65 or larger bodv 1C8989X0012 20 Top Stem Stainless steel 38 O Ring PTFE NPS 1 DN 25 body 46A7855X012 NPS 2 1 2 or 3 DN 65 or 80 body 17A7396X012 NPS 1 1 2 or 2 DN 40 or 50 bodv 16A7886X012 NPS 4 DN 100 bodv 17A7397X012 21 Cylinder Spacer Steel 40 Lockwasher Stainless steel NPS 1 DN 25 body 26A7856X012 NPS 1 DN 25 body 1F128035022 NPS 1 1 2 DN 40 body 26A7918X012 NPS 1 1 2 or 2 DN 40 or 50 body 1505638992 NPS 2 DN 50 body 26A7887X012 41 Mex Nut 22 Stem Seal Polytetrafluoroethylene PTFE glass NPS 1 DN 25 body 316 Stainless steel 1A391535252 NPS 1 DN 25 body 16A7962X012 NPS 1 1 2 or 2 DN 40 or 50 body NPS 1 1 2 or 2 DN 40 or 50 body 16A7963X012 Ane piled Steel MASPOBEMIZ Recommended spare part Type
11. 250 psig 17 2 bar or main valve 300 psig 20 7 bar or main valve ed pie 10 3 bar body rating limit whichever is lower body rating limit whichever is lower l 25 psig A A With Type 6492L pilot 1 7 bar 50 psig 3 4 bar 125 psig 8 6 bar 2 A Type 92W regulator may be installed in any orientation as long as flow through the regulator matches the direction of the arrow on the main valve body Apply liquid compatible pipe compound to the male pipeline threads for an NPT body or use suitable line gaskets for a flanged body Use acceptable piping procedures when installing the regulator If continuous operation of the system is required during inspection and maintenance install a three valve bypass around the regulator If the flowing medium contains solids install a properly sized strainer upstream of the regulator Note A regulator that has the Type 6492H or 6492L pilot with a 1 8 inch 3 2 mm drilled hole in the spring case may function improperly if this spring case vent hole becomes clogged Install and maintain such regulator so that the spring case vent hole stays clear As shown in Figure 2 connect a control line as large as possible but no smaller than 3 8 inch 9 5 mm diameter bushed down to the 1 4 NPT connection in the cylinder spacer NPS 1 1 1 2 or 2 body size DN 25 40 or 50 or the pilot body NPS 2 1 2 3 or 4 body size DN 65 80 or 100 With the NPS 2 1 2 3 or 4 DN 65 80
12. 2L pilot For example combining a 5 psig 0 34 bar spring setting pressure and a 10 psig 0 69 bar spring case loading pressure results in a regulator pressure of 15 psig 1 0 bar Startup with New Regulator Installation 1 Remove all pilot control spring compression by turning the adjusting screw out of the spring case according to the adjustment procedure Slowly open the upstream block valve Open the downstream block valve Open the control line shutoff valve a A WwW N Ifa bypass is used slowly close the bypass line block valve 6 Perform the adjustment procedure until the downstream pressure reaches the desired setting Startup with Existing Regulator Installation After Normal Shutdown 1 Open the upstream and downstream block valves and let the regulator take over control at the existing pilot control spring setting 2 If a bypass line is used slowly control the bypass line block valve Shutdown 1 If a bypass line is used slowly open the bypass line block valve while monitoring the downstream pressure Close the control line shutoff valve Close the downstream block valve Close the upstream block valve a A WwW N If a pressure loaded or on off pilot is used close the needle valve to the pilot 6 Vent the regulator and control line to release any trapped pressure Principle of Operation Pilot supply pressure is piped from the main valve inlet Figure 3 to the pilo
13. 6492H PILOT 4088 1 NPS 3 DN 80 FLANGED CAST IRON MAIN VALVE WITH TVPE 6492L PILOT Figure 1 Tvpical Connections overpressured or is installed where service conditions could exceed the limits given in the Specifications section and on the appropriate nameplates or where conditions exceed anv ratings of the adjacent piping or piping connections EMERSON FISHER Process Management D101268X012 Type 92W Specifications Main Valve Body Sizes and End Connection Styles END CONNECTION STYLE AND RATING BODY SIZE NPS DN Cast Iron Body Steel Body 1 1 1 2 and 2 NPT NPT 1 1 1 2 2 2 1 2 Flat faced CL125B Main Valve Port Diameters and Flow Coefficients 3 and 4 or rsisa isfi ad Raised faced CL150 A PA on CL250B flanged CL300 or CL600 flanged Maximum Inlet and Pilot Supply Pressure Cast Iron Main Valve and Pilot 250 psig 17 2 bar or body rating limit whichever is lower Steel Main Valve and Pilot 300 psig 20 7 bar or body rating limit whichever is lower Maximum Differential Pressure 150 psig 10 3 bar or body rating limit whichever is lower Minumum Differential Pressure 20 psig 1 4 bar Outlet Control Pressure Ranges See Table 1 Maximum Outlet Pressures See Table 2 Maximum Allowable Loading Pressure for Pilot with Tapped Spring Case Combination of pilot control spring setting and spring case loading pressure must
14. A3518 B SUPPLV SUPPLV 86 O O O o O o O WI A A _ gt Q O D 4 UD wy ID II Tov III UI Ae g te 39A3519 C 30B3840 A T snie 64 84 LOADING J WITH PILOT MOUNTED IN STANDARD POSITION SO CONTROL WITH PILOT MOUNTED IN OPTIONAL POSITION SO CONTROL LINE CONNECTION FACES DOWNSTREAM LINE CONNECTION FACES UPSTREAM NPS 2 1 2 3 OR 4 DN 65 80 OR 100 BODY SIZE Figure 6 Pilot Mounting Parts Industrial Regulators Natural Gas Technologies TESCOM Emerson Process Management Emerson Process Management Emerson Process Management Regulator Technologies Inc Regulator Technologies Inc Tescom Corporation USA Headquarters USA Headquarters USA Headquarters McKinney Texas 75069 1872 USA McKinney Texas 75069 1872 USA Elk River Minnesota 55330 2445 USA Tel 1 800 558 5853 Tel 1 800 558 5853 Tel 1 763 241 3238 Outside U S 1 972 548 3574 Outside U S 1 972 548 3574 Europe Asia Pacific Asia Pacific Selmsdorf Germany 23923 Shanghai China 201206 Singapore Singapore 128461 Tel 49 0 38823 31 0 Tel 86 21 2892 9000 Tel 65 6777 8211 Europe Europe Bologna Italy 40013 Bologna Italy 40013 Tel 39 051 4190611 Tel 39 051 4190611 Gallardon France 28320 Middle East and Africa Tel 33 0 2 37 33 47 00 Dubai United Arab E
15. Instruction Manual Form 5237 Type 92W Liquid Regulator Introduction Scope of the Manual This instruction manual provides installation maintenance and parts ordering information for the Type 92W liquid pressure reducing regulator which includes the Type 6492H or 6492L pilot Accessories used with this regulator including any pressure loading device for a Type 6492H or 6492L pilot with tapped spring case are covered in other W4086 3 manuals for those accessories Product Description The Tvpe 92W pressure reducing regulator for liquid service includes either a Tvpe 6492H or a Tvpe 6492L pilot Figure 1 Both pilots have a friction reducing bellows seal on the stem Thev offer precise pressure setting adjustment plus high sensitivitv to downstream pressure changes These pilots are available in either a standard version with a drilled spring case vent or an optional version with a tapped spring case vent and a sealed adjusting screw for pressure loading service A Fisher 67 or 1301 Series regulator or a 670 Series panel mounted regulator mav be used to load the pilot of a version for pressure loading service Specifications Specifications for the Tvpe 92W regulator are found in the Specifications section Installation Personal injurv equipment damage or leakage due to escaping liquid or bursting of pressure containing parts mav result if this regulator is Type 92W NPS 1 NPT STEEL MAIN VALVE WITH TYPE
16. Recommended spare part Type 92W the top piston Secure these parts with the lock washer and hex nut keys 40 and 41 Install the top piston plus attached parts stem first through the stem seal until the top stem contacts the bottom stem For NPS 1 1 1 2 and 2 sizes DN 25 40 and 50 coat both serrated edges of the top cylinder key 17 with Led Plate Number 250 sealant or equivalent install new cylinder gaskets key 18 on these edges and install the cylinder down over the top piston into the cylinder spacer 10 Install the body flange key 2 on the body and secure with the cap screws key 3 not shown for a cast iron body or with the stud nuts key 4 for a steel body 11 12 in Figure 6 Install the pilot and connect all tubing as shown When all maintenance is complete refer to the startup and adjustment procedure to put the regulator back into operation and adjust the pressure setting Parts Ordering When corresponding with a local Sales Office about this equipment always reference the equipment serial number as found on the regulator nameplates When ordering replacement parts reference the complete 11 character part number of each needed part as found in the following parts list Parts List Types 6492L and 6492H Pilots Figure 4 Key 4 5 7 8 ge 10 Description Part Number Repair Kits included are keys 4 5 7 8 9 10 and 18 Tvpe 6492L pilot R6492LX0012 Type 6492H
17. TROL LINE CONTROL LINE CONNECTION _ VALVE STRAINER p AIR LOADING NEEDLE BLEED RESTRICTION REQUIRED ONLY REGULATOR VALVE IF THE LOADING REGULATOR DOES NOT HAVE INTERNAL RELIEF l gt l CONTROL LINE CONNECTION CONTROL LINE SHUT OFF VALVE EA mm STRAINER 4 7 ho X rater VALVE BLOCK VALVES VENT VALVE A A L BVPASS LINE 16A7958 B 16A1547 A A3334 WITH PRESSURE LOADED PILOT Figure 2 Typical Installations gt BLOCK BLOCK VALVE VALVES VENT VALVE 7 BYPASS LINE 16A7958 B A2607 1 WITH STANDARD PILOT Adjustment On a regulator with a standard or pressure loaded Type 6492H or 6492L pilot loosen the hex nut key 16 Figure 4 Turn the adjusting screw key 15 Figure 4 into the spring case to increase the downstream pressure Turn the adjusting screw out of the spring case to decrease the downstream pressure When the required downstream pressure is maintained for several minutes tighten the hex nut to lock the adjusting screw in position On a regulator with a pressure loaded Type 6492H or 6492L pilot also refer to the instruction manual of the pressure loading device for downstream pressure adjustment procedures Make sure that the combined pilot control spring setting pressure and spring case loading pressure does not exceed 150 psig 10 3 bar for the Type 6492H pilot or 25 psig 1 7 bar for the Type 649
18. d stem key 9 into the cage key 5 Then install the piston spacer key 11 down through the baffle until it contacts the valve plug Install the spring key 12 and secure with the piston key 24 piston ring key 25 with its open end pointing out piston ring retainer key 26 and stem nut key 15 For the NPS 1 1 1 2 and 2 sizes DN 25 40 and 50 lock the stem nut in place with a cotter pin key 16 but do not fold the pin ends up on top of the stem since this can interfere with loading pressure registration through the top stem passage Install the main piston cage assembly with attached parts into the body Coat one of the serrated edges of the main cylinder key 17 with Led Plate Number 250 sealant or equivalent install a new cylinder gasket key 18 onto this edge and install the cylinder gasket side up on the cage Install a new body gasket key 19 onto the appropriate edge of the body For NPS 1 1 1 2 and 2 sizes DN 25 40 and 50 install the stem seal key 22 onto the cylinder spacer key 21 in the orientation shown in Figure 5 and secure with the stem seal retainer key 23 Coat the serrated edge of the spacer with Led Plate Number 250 sealant or equivalent and install the spacer edge side down over the bottom cylinder For NPS 1 1 1 2 and 2 sizes DN 25 40 and 50 install the top piston ring key 25 with its open end pointing out ring retainer key 26 and stem key 20 on
19. g screw key 15 counterclockwise until all compression is removed from the control spring key 12 Remove the pilot from the pipe nipple and connectors keys 82 and 83 Figure 6 Type 92W Unscrew the plug guide key 2 Remove the screen key 77 plug key 4 plug spring key 3 and stem key 7 Unscrew the seat ring key 5 Examine the seat ring and plug seating surfaces for damage Clean and replace parts as necessary Apply Led Plate Number 250 sealant or equivalent to the seat ring threads Thread the seat ring into place and tighten it to between 19 and 25 foot pounds 26 and 34 Nem of torque Handle the parts carefully and place the plug spring key 3 in the plug guide key 2 Slide the plug key 4 over the spring and into the plug guide Place the screen key 77 onto the plug guide Place the stem key 7 in the center hole of the plug guide Apply Led Plate Number 250 sealant or equivalent to the plug guide threads and screw the guide plus attached parts into the body key 1 Remove the pipe plug and bleed restriction keys 74 and 76 Clean or replace the restriction as necessary Sparingly apply Led Plate Number 250 sealant or equivalent to the threads of the restriction and thread the restriction into place Apply Led Plate Number 250 sealant or equivalent to the threads of the pipe plug Thread the pipe plug into place and tighten it to between 5 and 15 foot pounds 7 0 and 20 Ne
20. ly Aluminum Steel Stainless steel Type 6492L pilot only Pipe Plug Steel Bleed Restriction 304 Stainless steel Screen 304 Stainless steel Reducing Bushing Carbon steel Never Seez Lubricant 1 gallon 3 8 L can not furnished Led Plate No 250 Sealant 5 pounds 2 kg can not furnished Sealing Washer Carbon steel tapped spring case only Repair Kits included are keys 8 16 18 19 25 and 38 NPS 1 DN 25 body NPS 1 1 2 DN 40 body NPS 2 DN 50 body NPS 2 1 2 DN 65 body NPS 3 DN 80 body NPS 4 DN 100 body Body Body Flange Cast iron NPS 1 DN 25 body NPS 1 1 2 DN 40 body NPS 2 DN 50 body NPS 2 1 2 DN 65 body NPS 3 DN 80 body NPS 4 DN 100 body WCC steel NPS 1 DN 25 body NPS 1 1 2 DN 40 body Recommended spare part Se o Part Number 1E395408012 1E395627022 1D745527142 1E395727192 1D667125072 3J496319012 23496219012 3L442119012 2L441919012 3L416122012 2L416322012 3L442222012 2L442022012 1D995448702 1A353724122 1A381624052 1E397004022 1E396104022 1A368228982 19A3510X0A2 1E3967X0012 0Z020128992 19A2612X012 16A1512X012 10379026232 1M523906992 1M524006992 1V205699012 R92SX000052 R92SX000062 R92SX000072 R92EX0000B2 R92EX000032 R92EX000042 following Table 26A7837X012 26A7900X012 26A7869X012 27A1548X012 27A1576X012 27A1600X012 26A7838X012 26A7901X012 Kev Description 2 g 11 Bodv Flange WCC steel continued NPS
21. m of torque Remove the cap screws key 17 spring case key 14 control spring key 12 and upper spring seat key 13 from the body Remove the lower spring seat key 11 Type 6492H pilot only or diaphragm assembly key 24 Type 6492L pilot only diaphragms key 10 and diaphragm gasket key 18 from the body Inspect and clean the diaphragm gasket and replace it if necessary Unscrew the bellows retainer key 8 and remove the bellows key 9 Replace worn parts as necessary and install the bellows and bellows retainer Tighten the bellows retainer to between 19 and 25 foot pounds 26 and 34 Nem 10 Install the diaphragm gasket Install both diaphragms 11 with their raised preformed centers facing toward the spring case Lubricate the upper spring seat and the exposed threads of the adjusting screw with Never Seez lubricant or equivalent Install the lower spring seat key 11 Type 6492H pilot only or diaphragm assembly key 24 Type 6492L pilot only control spring key 12 upper spring seat key 13 and spring case key 14 Insert and tighten the cap screws key 17 to between 12 and 18 foot pounds 16 0 and 24 00 Nem of torque using a crisscross bolting pattern 1 Trademark of Armite Laboratories 2 Trademark of Never Seez Corp 12 When pilot maintenance is complete refer to the startup and adjustment procedure to put the regulator back in operation and adjust the pressure setting
22. mirates Tel 971 4811 8100 For further information visit www emersonprocess com regulators 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 Inc a business of Emerson Process Management The contents of this publication are presented for informational purposes only and while every effort has been made to ensure their accuracy they are not to be construed as warranties or guarantees express or implied regarding the products or services described herein or their use or applicability We reserve the right to modify or improve the designs or specifications of such products at any time without notice Emerson Process Management 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 EMERSON nent Emerson Process Management Regulator Technologies Inc 2004 2009 All Rights Reserved
23. not exceed 150 psig 10 3 bar for Type 6492H pilot or 25 psig 1 7 bar for Type 6492L pilot BODY SIZE PORT DIAMETER REGULATING i NPS DN Inches Tri CAPACITIES m 1 25 7 8 22 2 10 0 62 1 1 2 40 1 1 8 28 6 20 0 62 2 50 1 29 64 36 9 35 0 62 2 1 2 65 1 5 8 41 3 48 0 71 3 80 2 1 16 52 4 66 0 71 4 100 2 3 8 60 3 78 0 71 Maximum Material Temperature Capabilities Cast Iron Construction 406 F 208 C Steel Construction 500 F 260 C Pressure Registration External through downstream control line Downstream Control Line Connection NPS 1 1 1 2 or 2 DN 25 40 or 50 Body Size 1 4 NPT female in main valve cylinder spacer NPS 2 1 2 3 or 4 DN 65 80 or 100 Body Size 1 4 NPT female in pilot body Pilot Spring Case Vent 1 8 inch 3 18 mm drilled hole standard pilot or 1 4 NPT female tapping for pressure loading service optional pilot Approximate Weights APPROXIMATE WEIGHTS BODY SIZE END CONNECTION NPS DN Pounds kg 1 25 NPT or flanged 32 14 1 1 2 40 NPT or flanged 44 20 NPT 55 25 2 490 Flanged 67 30 2 1 2 65 Flanged 90 41 3 80 Flanged 115 52 4 100 Flanged 165 75 1 The pressure temperature limits in this Instruction Manual or anv applicable code or standard limitations must not be exceeded To avoid such injurv or damage provide pressure relieving or pressure limiting devices to prevent service conditions from exceeding those limits
24. pilot R6492HX0012 Body Cast Iron Tvpe 6492L pilot 32A0404X012 Tvpe 6492H pilot 22A0403X012 Steel Tvpe 6492L pilot 32A0404X052 Tvpe 6492H pilot 22A0403X052 Plug Guide Stainless steel 1E391835132 Plug Spring 302 Stainless steel 1E392437022 Plug 302 Stainless steel 1F967446172 Seat Ring 416 Stainless steel 1H564446172 Stem 416 Stainless steel 1F967835132 Bellows Retainer Brass 1F971214012 Bellows Brass 1F971318992 Diaphragm 302 Stainless steel 2 required Tvpe 6492L pilot 1E396936012 Tvpe 6492H pilot 1E395836012 Type 92W Key 11 12 13 15 16 17 18 87 Type 92W Main Valve Figure 5 1 2 Description Lower Spring Seat Aluminum Type 6492H pilot only Control Spring Steel Cadmium Plate see Table 1 for outlet pressure ranges Yellow color code Green color code Red color code Upper Spring Seat Steel Cadmium Plate Spring Case Standard cast iron Type 6492L pilot Type 6492H pilot Tapped cast iron Type 6492L pilot Type 6492H pilot Standard steel Type 6492L pilot Type 6492H pilot Tapped steel Type 6492L pilot Type 6492H pilot Adjusting Screw standard spring case only steel Cadmium Plate Hex Nut standard spring case only steel Cadmium Plate Cap Screw steel plate 10 required for Type 6492L pilot and 8 required for Type 6492H pilot Diaphragm Gasket Encapsulated Fiber Asbestos Type 6492L pilot Type 6492H pilot Drive Screw SST 2 required Nameplate Aluminum Diaphragm Plate Assemb
25. r key 17 piston key 24 with attached parts and spiral wound gasket key 8 6 Remove the cotter pin key 16 NPS 1 1 1 2 and 2 sizes only DN 25 40 and 50 stem nut key 15 bottom stem key 9 with hex head valve plug key 6 piston ring retainer key 26 piston ring key 25 bottom piston ring retainer key 26 NPS 1 1 1 2 and 2 sizes only DN 25 40 and 50 piston key 24 spring key 12 piston spacer key 11 cage key 5 and seat ring key 7 7 Either remove the retaining ring key 14 or if it is necessary to remove the baffle key 13 remove the spring seat washer and O ring keys 32 34 and 38 With an NPS 2 1 2 through 4 DN 65 through 100 sizes only also remove the plug spacer key 33 Assembly 1 Inspect and replace parts as necessary making sure that the hollow passage in the top stem NPS 1 1 1 2 and 2 sizes only DN 25 40 and 50 is free from debris Install a spiral wound gasket key 8 into the body key 1 If installing a new valve plug and or a new seat ring lap the seating surfaces together outside the body Use a commercial lapping compound or a mixture of solidified vegetable oil and 600 grit or finer silicon carbide or aluminum oxide Install the baffle key 13 plug spacer key 33 if used and either the retaining ring key 14 or the O ring washer and spring seat keys 38 34 and 32 and then install the seat ring key 7 valve plug key 6 an
26. t inlet connection Downstream pressure registers on the main valve pistons through the downstream control line and then on the pilot diaphragm When increased downstream demand lowers the downstream pressure to a value below the setting of the pilot control spring this spring forces the pilot valve plug open to increase the loading pressure on the main valve ER INLET PRESSURE E OUTLET PRESSURE C ATMOSPHERIC PRESSURE EEA LOADING PRESSURE A6552 TYPE 92W WITH TYPE 6492L PILOT NPS 1 THROUGH 2 DN 25 THROUGH 50 MAIN VALVE Type 92W EE INLET PRESSURE E OUTLET PRESSURE E ATMOSPHERIC PRESSURE EA LOADING PRESSURE A6553 TYPE 92W WITH TYPE 6492H PILOT NPS 2 1 2 THROUGH 6 X 4 DN 65 THROUGH 150 X 100 MAIN VALVE Figure 3 Operational Schematics pistons At the same time the increased demand lowers the downstream pressure on the main valve piston s This opens the main valve plug increasing flow to the downstream system to satisfy the increased demand and to restore downstream pressure to the setting of the pilot control spring Decreased downstream demand increases the downstream pressure registered on the pilot diaphragm The increased pressure overcomes the force of the pilot control spring and allows the pilot valve plug spring to close the pilot valve plug As the pilot valve plug closes excess loading pressure bleeds to the downstream system through the pilot bleed restriction At the same time decreased
Download Pdf Manuals
Related Search