Emerson Y693 Instruction Manual
Contents
1. DN 40 NPS 2 DN 50 WCC Steel NACE NPT NPS 1 1 2 NPS 2 Part Number 1A348704022 0096435072 0096435072 1E3409X0052 1E3409X0052 1A866935032 1A8664X00A2 24B1975xX012 24B1975xX012 1 4207 0072 11949306382 1 4207 0082 1A348004032 0095828982 02017624092 020176 0012 02017624092 34 1452 012 34B1452X022 1B136324052 1A309324122 AE6180X0012 34B2157X012 34B2157X022 24B1952X012 24B1952X022 0L040135032 0L0401X0012 14B3194X012 14B3194X022 14B3195X012 14B3195X022 14B3195X032 14B3195X042 14B3195X092 14B3195X102 14B3194X032 14B3194X042 14B3195X052 14B3195X062 14B3195X072 14B3195X082 14B3195X112 14B3195X122 14B3194X052 14B3194X062 11 Type Y693 Key Description Part Number Key Description Part Number 30 Screw Plated steel 75 Elbow Plastic 14B3191X012 0 5 to 32 w c 1 to 80 mbar springs 1A667824052 80 Lubricant eee ene 1 to 5 psig 69 mbar to 0 3 bar springs 1B720924052 85 Bias Spring 2 to 5 5 psig 138 mbar to 0 4 bar spring 1E4539x0012 Stainless steel 14B2154X012 4 to 10 psig 276 mbar to 0 7 bar spring 1E4539x0012 Stainless steel NACE 14B3540X012 35 Closing Cap Gasket Neoprene CR 1N446206992 93 Hex Nut Plated steel 44 Spring Seat Aluminum 0Y095644012 2 to 5 5 psig 138 mbar to 0 4 bar spring 1A352424122 50 Nameplate wan nneeee 4 to 10 psig 276 mbar to 0 7 bar spring 1A352424122 51 Drive Screw ne ee eee 97 Bushing 56 Vent As2. key 28 with cap screws key 18 Uniformly tighten the two cap screws to a torque of 45 to 50 ft lbs 61 to 68 Nem For the Steel or Stainless Steel Lower Casing Version Only Key numbers are referenced in Figure 5 This procedure is for gaining access to the disk assembly orifice body gasket and split ring All pressure must be released from the regulator before these steps can be performed 1 Unscrew the union nut key 19 from the body key 28 and remove the lower casing assembly key 20 and split ring key 17 2 Inspect and replace the orifice key 27 if necessary Lubricate the threads of the replacement orifice with a good grade of pipe thread sealant Install the orifice with 75 to 100 ft lbs 102 to 136 Nem of torque Type Y693 3 Inspect the disk key 99 for nicks cuts and other damage Unscrew the machine screw key 12 and replace the disk with a new part if necessary Install the new disk disk washer and machine screw keys 99 98 and 12 and hand tighten to a torque of 1 to 2 ft lbs 1 to 3 Nem 4 Inspect the bias spring key 85 and disk holder key 25 Unscrew the disk holder key 25 from the valve stem key 13 and replace the bias spring with a new part if necessary Lubricate the disk holder threads and carefully tighten to no more than 5 to 7 ft lbs 7 to 9 Nem 5 If necessary install a replacement body gasket key 16 into the body key 28 6 Slide the union nut key 19 as fa
3. 128461 Singapore Tel 65 6770 8337 Europe Bologna 40013 Italy Tel 39 051 419 0611 Chartres 28008 France Tel 33 2 37 33 47 00 Middle East and Africa Dubai United Arab Emirates Tel 971 4811 8100 Emerson Process Management Tescom Corporation USA Headquarters Elk River Minnesota 55330 2445 USA Tels 1 763 241 3238 1 800 447 1250 Europe Selmsdorf 23923 Germany Tel 49 38823 31 287 Asia Pacific Shanghai 201206 China Tel 86 21 2892 9499 For further information visit www fisherregulators com The Emerson logo is a trademark and service mark of Emerson Electric Co All other marks are the property of their prospective owners Fisher is a mark owned by Fisher Controls International LLC a business of Emerson Process Management The contents of this publication are presented for informational purposes only and while every effort has been made to ensure their accuracy they are not to be construed as warranties or guarantees express or implied regarding the products or services described herein or their use or applicability We reserve the right to modify or improve the designs or specifications of such products at any time without notice Emerson Process Management Regulator Technologies 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 s
4. 1L928608012 1A500528982 1A500528982 1A589544022 1J880124092 1J8801X0022 1H798714012 1H798714012 14B4240x012 14B4240X012 197974 0012 197974 0012 1N9721X0012 1N9721X0022 1N9722X0012 1N9722X0022 0V003935032 0V0039X0022 Type Y693 Key Description 7 Diaphragm Plate Gasket Composition 8 Pusher Post Stainless steel Stainless steel NACE 9 Lever Assembly Stainless steel Stainless steel NACE 11 Machine Screw Stainless steel 2 required 12 Machine Screw Stainless steel 13 Stem Stainless steel Stainless steel NACE 15 Stem O ring Nitrile NBR Fluorocarbon FKM Perfluoroelastomer FFKM 16 Body Gasket Composition 17 Snap Ring Steel 19 Union Nut WCC Steel Stainless Steel WCC Steel NACE 20 Lower Casing Assembly WCC steel Stainless steel 21 Diaphragm Case Cap Screw Plated steel 12 required 22 Hex Nut Zinc plated steel 12 required 23 Spring Case Aluminum WCC steel Stainless steel 25 Disk Holder Stainless steel Stainless steel NACE 27 Orifice Stainless Steel 1 2 13mm Stainless steel NACE 1 2 13 mm 28 Body WCC Steel NPT NPS 1 1 2 NPS 2 Flanged CL150 RF NPS 1 1 2 DN 40 NPS 2 DN 50 CL300 RF NPS 1 1 2 DN 40 NPS 2 DN 50 EN PN 16 25 and 40 RF NPS 1 1 2 DN 40 NPS 2 DN 50 Stainless steel NPT NPS 1 1 2 NPS 2 Flanged CL150 RF NPS 1 1 2 DN 40 NPS 2 DN 50 CL300 RF NPS 1 1 2 DN 40 NPS 2 DN 50 EN Class PN 16 25 and 40 RF Flanged NPS 1 1 2
5. Office 2 The pressure temperature limits in this manual and any applicable standard limitation should not be exceeded Table 1 Outlet Control Pressure Ranges CONTROL SPRING OUTLET PRESSURE RANGE COLOR WIRE DIAMETER PART CODE NUMBER psig bar In mm 0 5 to 2 0 in w c 1 to 5 mbar Brown 0 109 2 77 1D892527022 2 to 5 w c 5 to 12 mbar Red 0 120 3 05 1D892627022 Light diaphragm plate 5 to 8 in w c 12 to 20 mbar Black 0 130 3 30 1D892727012 8 to 18 in w c 20 to 45 mbar Gray 0 156 3 96 1D893227032 18 to 32 in w c 45 to 80 mbar Dark Green 0 182 4 62 1D893327032 1to2 69 to 138 mbar Dark blue 0 225 5 72 1H975827032 Heavy diaphragm plate 1 5 to 3 3 103 to 228 mbar Orange 0 250 6 35 1H975927032 2105 138 mbar to 0 3 bar Yellow 0 283 7 19 1P615427142 2405 5 138 mbar to 0 4 bar Green stripe 0 363 9 22 0Y066427022 4 to 10 276 mbar to 0 7 bar Silver 0 406 10 3 1H802427032 duty spring adjustor 1 Outlet pressure ranges are for installations with the spring barrel positioned in any direction After installation always check adjust the pressure setting The regulator will maintain a positive vessel pressure reducing the possibility of vessel wall collapse The Type Y693 is available in NPS 1 1 2 and 2 DN 40 and 50 body sizes Installation Personal injury equipment damage or leakage due to escaping accumulated gas or bursting of pressure containing parts may result if the gas bla
6. cap screws key 21 and spring case key 23 Remove the diaphragm assembly key 5 plus attached parts by tilting them so that the pusher post key 8 slips off the lever assembly key 9 To separate the diaphragm key 5 from the attached parts unscrew the spring holder cap screw key 30 from the pusher post key 8 Inspect the pusher post and replace if required Inspect the lower spring seat key 4 lower diaphragm head key 6 and the lower diaphragm head gasket key 7 and replace if necessary To replace the lever assembly key 9 remove the machine screws key 11 To replace the valve stem key 13 unscrew the union nut key 19 from the body key 28 and remove the lower casing assembly key 20 and split ring key 17 Pull the valve stem key 13 out of the lower casing assembly key 20 To inspect the body bushing key 97 remove the bushing snap ring key 74 and carefully remove the body bushing from the lower casing assembly key 20 During the assembly procedure use lubricants indicated parts Figure 5 and replace parts as required Install the body bushing O ring key 64 on the body bushing key 97 To install the wiper key 66 place a small swab of lubricant into the body bushing to hold the wiper in place while the bushing is installed into the lower casing assembly key 20 Ensure that the wiper is properly oriented with the wiper lip pointing inward toward the diaph
7. psig 69 to 138 mbar SILVER 4 TO 10 psig 276 mbar to 0 69 bar RED 2 TO 5 IN W C 5 to 12 mbar ORANGE 1 5 TO 3 3 psig 103 to 228 mbar CONTROL SPRINGS BLACK 5 TO 8 IN W C 12 to 20 mbar YELLOW 2 5 psig 138 mbar to 0 3 bar GRAY 8 TO 18 IN W C 20 to 45 mbar DARK GREEN 18 TO 32 IN W C 45 to 80 mbar Figure 3 Type Y693 Adjusting Screw Contro Spring Combinations Figure 4 Y693 Regulator Aluminum Lower Casing Version 54B2264 B 35 44 21 22 9 8 49 APPLY LUBRICANT Type Y693 13 28 11 Figure 4 Type Y693 Regulator Aluminum Lower Casing Version continued Parts List In this parts list parts marked NACE are intended for corrosion resistant service as detailed in the National Association of Corrosion Engineers NACE standard MRO 175 90 Type Y693 Regulator Figures 3 4 and 5 Aluminum lower casing version Figures 3 and 4 Key 1 2 Description Control Spring Plated steel Adjusting Screw 0 5 to 32 in w c 1 to 80 mbar spring 1 to 5 psig 69 mbar to 0 3 bar spring 2 to 5 5 psig 138 mbar to 0 4 bar spring 4 to 10 psig 276 mbar to 0 7 bar spring Closing Cap 0 5 to 32 in w c 1 to 80 mbar spring 1 to 5 psig 69 mbar to 0 3 bar spring 2 to 5 5 psig 138 mbar to 0 4 bar spring 4 to 10 psig 276 mbar to 0 7 bar spring Lower Control Spring Seat Pla
8. required 2 Turn the adjusting screw key 2 either clockwise to increase outlet pressure or counterclockwise to decrease outlet pressure The regulator will go into immediate operation To ensure correct operation always use a pressure gauge to monitor the blanket pressure when making adjustments 3 Replace the closing cap key 3 if required Shutdown First close the nearest upstream shutoff valve and then close the nearest downstream shutoff valve and the block valve on the control line refer to Figure 2 Next open the vent valve between the regulator and the downstream shutoff valve nearest to it Then open the upstream vent valve and the vent valve in the control line All pressure between these shutoff valves is released through the open vent valves since a gas blanketing regulator remains open in response to the decreasing downstream pressure If vent valves are not installed safely bleed off both inlet and outlet pressures and check that the regulator contains no pressure Principle of Operation The Type Y693 Gas Blanketing Regulator reduces a higher pressure gas to maintain a positive low pressure of blanket gas over a stored liquid see Figure 2 Also when the vessel or tank is suddenly cooled causing vapors to contract the regulator replaces the volume of contracting vapors with a volume of blanketing gas to prevent the internal vessel pressure from decreasing In both cases a positive vessel pressure pre
9. to the blanketed product by atmospheric conditions Installation operation and maintenance procedures performed by unqualified personnel may result in improper amp EMERSON Process Management D102021X012 Type Y693 Specifications The Specifications table lists specifications for the Type Y693 Gas Blanketing Regulator Specifications for a given regulator as it originally comes from the factory are stamped on the spring case nameplate Body Sizes and End Connection Styles NPS 1 1 2 and 2 NPT ASME CL150 and CL300 RF flanged Optional or EN PN 16 25 and 40 RF flanged Optional Maximum Allowable Inlet Pressure 150 psig 10 3 bar or body rating limit Maximum Outlet Casing Pressure 15 psig 1 0 bar Outlet Pressure Ranges See Table 1 Maximum Operating Outlet Pressure to Avoid Internal Part Damage 2 psig 0 14 bar above outlet pressure setting Material Temperature Capabilities Nitrile NBR 20 to 180 F 29 to 82 C Fluorocarbon FKM 40 to 300 F 4 to 149 C Polytetrafluoroethylene PTFE to 300 F 18 to 149 C Spring Case Connection Aluminum Version 3 4 NPT Steel and Stainless Steel Version 1 2 NPT Approximate Weights Cast Iron with Aluminum 22 Ibs 10 kg WCC Steel or CF8M Stainless steel 57 Ibs 26 kg WCC Steel with Aluminum 35 Ibs 16 kg 1 Flanged end connections and end connections for other than U S standard can usually be provided consult the local Sales
10. version only Key numbers are referenced in Figures 3 and 4 1 a A 10 Remove the downstream external control line Remove the closing cap key 3 and turn the adjusting screw key 2 counterclockwise to remove the adjusting screw key 2 Remove the upper spring seat key 4 or 44 and the control spring key 1 Remove the hex nuts key 22 cap screws key 21 and spring case key 23 Remove the diaphragm assembly key 5 plus attached parts by tilting them so that the pusher post key 8 slips off the lever assembly key 49 To separate the diaphragm key 5 from the attached parts unscrew the spring holder cap screw key 30 from the pusher post key 8 Inspect the pusher post and replace if required To replace the lever assembly key 49 remove the machine screws key 11 cotter pin key 14 and clevis pin key 10 To replace the valve stem key 13 unscrew the cap screws key 18 from the body key 28 and remove the lower casing assembly key 9 Pull the valve stem key 13 out of the lower casing assembly key 9 To inspect the body bushing key 97 remove the bushing snap ring key 74 and carefully remove the body bushing from the lower casing assembly key 9 During the assembly procedure use lubricants on parts as indicated in Figure 4 and replace parts as required Install the body bushing O ring key 64 on the body bushing key 97 A wiper retaining rin
11. 1A866537022 1E216306992 1L949306382 T12587T0012 T12587T0022 1H974724052 1B136324052 1A309324122 AE6180X0012 24B1952xX012 1A928835032 14B3192X012 14B3192X022 14B3193X012 14B3193X022 14B3192X032 14B3192X042 14B4053X012 14B4053X022 Type Y693 CONTROL LINE CONNECTION 85 99 12 98 27 a 25 15 2 44 64 1 VIEW B 16 30 4 5 21 20 6 7 8 APPLY LUBRICANT 54B2266 B Figure 5 Type Y693 Regulator Steel or Stainless Steel Lower Casing Version Key 28 30 Description Body continued CL300 RF NPS 1 1 2 DN 40 NPS 2 DN 50 EN PN 16 25 and 40 RF Flanged NPS 1 1 2 DN 40 NPS 2 DN 50 Cap Screw 0 5 to 32 in w c 1 to 80 mbar spring 1 to 5 psig 69 mbar to 0 3 bar spring 2 to 5 5 psig 138 mbar to 0 4 bar spring 4 to 10 psig 276 mbar to 0 7 bar spring Closing Cap Gasket Neoprene CR Spring Seat Lever Assembly Stainless steel Nameplate Drive Screw Vent Assembly Type Y602 8 Plastic Wiper Retaining Ring Bushing O ring Nitrile NBR Fluorocarbon FKM PTFE Wiper PTFE Back up ring 2 required Reducing Nipple Plastic Bushing Snap Ring Stainless steel Elbow Plastic Pin Stainless steel Lubricant Bias Spring Stainless steel Hex Nut Zinc plated steel 2 to 5 5 psig 138 mbar to 0 4 bar spring 4 to 10 psig 276 mbar to 0 7 bar spring Body Bushing Aluminum Disk Washer
12. Instruction Manual Type Y693 Form 5342 March 2015 Type Y693 Gas Blanketing Regulator Figure 1 Type Y693 Gas Blanketing Regulator Introduction adjustment and unsafe operation Either ZN WARNING condition may result in equipment damage or personal injury Use qualified personnel when installing operating and maintaining the Type Y693 regulator Failure to follow these instructions or to properly install and maintain this equipment could result in an explosion fire and or chemical contamination causing property damage and personal Scope of the Manual injury or death This instruction manual includes installation startup Fisher regulators must be installed maintenance and parts information for the Type Y693 operated and maintained in Gas Blanketing Regulator Figure 1 accordance with federal state and local codes rules and regulations and Product Description manufacturer s instructions The Accu Pressure Y693 Gas Blanketing If the regulator vents gas or a leak Regulator Figure 1 is a pressure reducing develops in the system service to the unit regulator with external registration requiring a may be required Failure to correct trouble downstream control line It is used for accurate could result in a hazardous condition pressure control on pressure blanketing systems The regulator will help in controlling emissions from the blanketed product and helps in protecting against any contamination
13. Stainless steel Disk Nitrile NBR Fluorocarbon FKM Part Number 14B4053X032 14B4053X042 14B4053X052 14B4053X062 1A667824052 1B720924052 1E4539xX0012 1E4539xX0012 1N446206992 0095644012 1H974028992 17A6573X022 14B2153X012 1L142906992 1P1676X0032 14B1553X012 14B2150X012 14B3323X012 1L142838992 14B3191X012 1H972935032 14B2154X012 1A352424122 1A352424122 24B1454x012 14B1954x012 14B1953X032 14B1953X022 Steel and Stainless Steel Lower Casing Version Figures 3 and 5 Key 1 2 Description Control Spring Plated steel Adjusting Screw 0 5 to 32 in w c 1 to 80 mbar spring 1 to 5 psig 69 mbar to 0 3 bar spring 2 to 5 5 psig 0 14 to 0 38 bar spring 4 to 10 psig 0 28 to 0 69 bar spring Closing Cap 0 5 to 32 in w c 1 to 80 mbar spring Aluminum Steel Stainless Steel 2 to 5 5 psig 138 mbar to 0 4 bar spring Brass 4 to 10 psig 0 28 to 0 69 bar spring Brass Lower Control Spring Seat Plated steel 0 5 to 32 in w c 1 to 80 mbar spring 1 to 5 psig 69 mbar to 0 3 bar spring 2 to 5 5 psig 0 14 to 0 38 bar spring 2 required 4 to 10 psig 0 28 to 0 69 bar spring 2 required Diaphragm Assembly 0 5 to 32 in w c 1 to 80 mbar spring Nitrile NBR Fluorocarbon FKM 1 to 10 psig 69 mbar to 0 7 bar springs Nitrile NBR Fluorocarbon FKM Lower Diaphragm Plate Stainless steel Stainless steel NACE Recommended Spare Parts Part Number See Table 1 1A5896X0022
14. e bypass around the regulator Type Y693 Startup and Adjustment To avoid personal injury property damage or equipment damage caused by bursting of pressure containing parts or explosion of accumulated gas never adjust the control spring to produce an outlet pressure higher than the upper limit of the outlet pressure range or that particular spring see Table 1 If the desired outlet pressure is not within the range of the control spring install a spring of the proper range according to the Diaphragm and Spring Case Area section of the maintenance procedure With installation completed the regulator can be placed in operation by slowly opening the upstream and downstream block valves if used while using gauges to monitor pressure The regulator takes control when downstream pressure is established The regulator has been adjusted at the factory to provide approximately the reduced pressure requested To ensure the correct pressure setting always use a pressure gauge to verify the outlet pressure setting The range of allowable pressure settings is stamped on the spring casing nameplate If a pressure setting beyond the stamped range is required install a spring with the desired range by following the procedures for changing the spring and diaphragm in the Maintenance section To adjust the pressure setting perform the following steps key numbers are referenced in Figures 3 4 and 5 1 Remove the closing cap key 3 if
15. from all pressure and cautiously release trapped pressure from the regulator before attempting disassembly Body Area Maintenance Procedures For the Aluminum lower casing version only Key numbers are referenced in Figure 4 This procedure is for gaining access to the disk assembly orifice and body O ring All pressure must be released from the regulator before these steps can be performed 1 Remove the cap screws key 18 that hold the lower casing assembly key 9 to the body key 28 Separate the lower casing from the body 2 Inspect and replace the orifice key 27 if necessary Lubricate the threads of the replacement orifice with a good grade of pipe thread sealant Install the orifice with 75 to 100 ft lbs 102 to 136 Nem of torque oO Inspect the disk key 99 for nicks cuts and other damage Unscrew the machine screw key 12 and replace the disk with a new part if necessary Install the new disk disk washer and machine screw keys 99 98 and 12 and tighten to a torque of 1 to 2 ft lbs 1 to 3 Nem 4 Inspect the bias spring key 85 and disk holder key 25 Unscrew the disk holder key 25 from the valve stem key 13 and replace the bias spring with a new part if necessary Lubricate the disk holder threads and carefully tighten to 5 to 7 ft lbs 7 to 9 Nem 5 Inspect the body O ring key 16 for damage and or wear and replace if necessary 6 Install the lower casing assembly key 9 to the body
16. g key 63 is required to hold the wiper key 66 in place while the bushing is installed into the lower casing assembly key 9 Ensure that the wiper is properly oriented with the wiper lip pointing inward toward the diaphragm Install the bushing snap ring key 74 to hold the body bushing in place Apply a moderate coating of lubricant to the valve stem key 13 Install the stem O ring key 15 and the two back up rings key 69 one on each side of the O ring onto the valve stem key 13 Install the valve stem key 13 from the body side of the bushing this is to ensure that the O ring groove does not damage the wiper 11 12 13 14 15 16 17 18 19 Install the lever assembly key 49 into the stem key 13 and insert the clevis pin key 10 and cotter pin key 14 Secure the lever assembly key 49 with the machine screws key 11 Carefully tighten the machine screws to a torque of 7 to 9 ft lbs 9 to 12 Nem Install the diaphragm and plate assembly key 5 pattern side up on the pusher post Then install the lower spring seat key 4 Lubricate the diaphragm cap screw threads key 30 and insert the cap screw to secure the diaphragm parts to the pusher post key 8 Carefully tighten to a torque of 7 to 9 ft lbs 9 to 12 Nem Install the assembled parts in the lower casing key 9 Make sure that the lever key 49 fits in the pusher post key 8 and that the holes in the diaphragm a
17. lign with the holes in the lower casing Install the spring case key 23 on the lower casing assembly key 9 so that the vent assembly key 56 is correctly oriented and secure with the cap screws key 21 and hex nuts key 22 finger tight only Insert the control spring key 1 into the spring case key 23 followed by the upper spring seat key 4 or 44 and the adjusting screw key 2 Turn the adjusting screw key 2 clockwise until there is enough control spring key 1 force to provide proper slack to the diaphragm key 5 Using a crisscross pattern finish tightening the cap screws key 21 and hex nuts key 22 to 18 to 21 ft lbs 24 to 28 Nem of torque To adjust the outlet pressure to the desired setting refer to the Startup and Adjustment section Install a replacement closing cap gasket key 35 if necessary and then install the closing cap key 3 if required Connect the downstream control line and refer to the Startup section before putting the regulator back in operation For the Steel or Stainless Steel lower casing version only Key numbers are referenced in Figures 3 and 5 1 Remove the downstream external control line Remove the closing cap key 3 if required and turn the adjusting screw key 2 counterclockwise to remove the adjusting screw key 2 Remove the upper spring seat key 4 or 44 and the control spring key 1 oO 10 11 12 Remove the hex nuts key 22
18. nketing regulator is overpressured or is installed where service conditions could exceed the limits given in Specifications 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 Title 49 Part 192 of the U S Code of Federal Regulations by the National Fuel Gas Code Title 54 of the National Fire Codes of the National Fire Protection Association or by other applicable codes to prevent service conditions from exceeding those limits A regulator should be inspected immediately for damage after any overpressure condition Additionally physical damage to the gas blanketing regulator could result in personal injury and property damage due to escaping accumulated gas To avoid such injury and damage install the gas blanketing regulator in a safe and well ventilated location Type Y693 Key numbers referenced in this section are shown in TYPE Y693 Figures 3 4 and 5 1 Use qualified personnel when installing operating and maintaining the regulator Before installing inspect the regulator for any shipment damage or foreign material that may have collected during crating and shipment Make certain the body interior is clean and the pipelines are free of foreign material Apply pipe compound only to the male pipe threads The regulator may be installed in any position as long as the flo
19. olely with the purchaser EMERSON ess Emerson Process Management Regulator Technologies Inc 1994 2015 All Rights Reserved P rocess M an ag ement
20. r as it will go onto the lower casing assembly key 20 Install both halves of the split ring key 17 into the slots of the lower casing assembly key 20 and secure them by sliding the union nut down on the split ring 7 Install the lower casing assembly key 20 with the attached split ring key 17 and union nut key 19 to the body key 28 8 Tighten the union nut key 19 until the lower casing assembly key 20 is secure on the body key 28 Diaphragm and Spring Case Area This procedure is for gaining access to the spring diaphragm and lever assembly stem All pressure must be released from the diaphragm case assembly before these steps can be performed Key numbers are referenced in Figures 3 4 and 5 To Change the Control Spring 1 Remove the closing cap key 3 if required and turn the adjusting screw key 2 counterclockwise until all compression is removed from the control spring key 1 2 Remove the adjusting screw key 2 and upper spring seat key 4 or 44 Change the control spring to match the desired spring range Replace the upper spring seat and install the adjusting screw key 2 4 Install a replacement closing cap gasket key 35 if necessary and reinstall the closing cap key 3 if required 5 If the spring range was changed be sure to change the stamped spring range on the nameplate Type Y693 To Disassemble and Reassemble Diaphragm Parts For the Aluminum lower casing
21. ragm Install the bushing snap ring key 74 to hold the body bushing in place Apply a moderate coating of lubricant to the valve stem key 13 Install the stem O ring key 15 and the two back up rings key 69 one on each side of the O ring onto the valve stem key 13 Install the valve stem key 13 from the body side of the bushing this is to ensure that the O ring groove does not damage the wiper Install the lever assembly key 9 into the stem key 13 and secure the lever assembly key 9 with the machine screws key 11 Carefully tighten the machine screws to a torque of 2 to ft lbs to 4 Nem Type Y693 13 Always use a new lower diaphragm plate gasket key 31 Install the parts on the pusher post in the order listed below Lower diaphragm plate gasket key 7 Lower diaphragm plate key 6 Diaphragm and plate assembly key 5 pattern side up Lower spring seat key 4 14 Lubricate the diaphragm cap screw threads key 30 and insert the cap screw to secure the diaphragm parts to the pusher post key 8 Carefully tighten to a torque of 7 to 9 ft lbs 9 to 12 Nem 15 Install the assembled parts in the lower casing key 20 Make sure that the lever key 9 fits in the pusher post key 8 and that the holes in the diaphragm align with the holes in the lower casing 16 Install the spring case key 23 on the lower casing assembly key 20 so that the vent assembly key 56 is correc
22. sembly Type Y602 8 Plastic 17A6573X022 Stainless steel 24B1455x012 64 Bushing O ring Stainless steel NACE 24B1455xX022 Stainless steel trim 98 Disk Washer Stainless steel 14B1954X012 Nitrile NBR 10782106992 99 Disk Fluorocarbon FKM 1 7821 0072 Stainless steel trim Perfluorocarbon FFKM 1 7821 0052 Nitrile NBR 14B1953X032 Stainless steel trim NACE Fluorocarbon FKM 14B1953X022 Neoprene CR 1C7821X0042 Perfluoroelastomer FFKM 14B1953X052 Fluorocarbon FKM 1 7821 0072 Stainless steel trim Perfluoroelastomer FFKM 1 7821 0052 Neoprene CR 14B1953X042 66 PTFE Wiper 14B1553X012 Fluorocarbon FKM 14B1953X022 69 PTFE Back up ring 2 required 14B2150X012 Perfluoroelastomer FFKM 14B1953X052 72 Reducing Nipple Plastic 14B3323X012 74 Bushing Snap Ring Stainless steel 14B1764x012 Stainless steel NACE 14B1764X022 Recommended Spare Parts 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 971 4811 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
23. ted gas may accumulate and cause personal injury death or property damage due to fire or explosion Vent a regulator in hazardous gas service to a remote safe location away from air intakes or any hazardous location The vent line or stack opening must be protected against condensation or clogging CONTROL LINE GAS BLANKETING PRESSURE VESSEL TANK A6342 Figure 2 Typical Type Y693 Installation For proper regulator operation a spring case vent key 56 is required to allow atmospheric pressure to register on the diaphragm The spring case vent must be kept open and positioned in such a manner to prevent the spring case from collecting moisture corrosive chemicals or other foreign material To allow maximum flexibility in installing the regulator the vent assembly is supplied separately in a bag Install the vent assembly in the 3 4 NPT vent tapping and position the vent pointed down as shown in Figure 2 Depending on the orientation of the regulator the elbow key 75 supplied with the vent may not be required to position the vent pointed down To remotely vent the regulator remove the vent and install obstruction free tubing or piping into the 3 4 NPT vent tapping Provide protection on a remote vent by installing a screened vent cap into the remote end of the vent pipe If continuous operation of the system is required during inspection or maintenance install a parallel regulator with a three valv
24. ted steel 0 5 to 32 in w c 1 to 80 mbar spring 1 to 5 psig 69 mbar to 0 34 bar spring 2 to 5 5 psig 138 mbar to 0 4 bar spring 4 to 10 psig 276 mbar to 0 7 bar spring Diaphragm Assembly 0 5 to 32 in w c 1 to 80 mbar springs Nitrile NBR Fluorocarbon FKM 1 to 10 psig 69 mbar to 0 7 bar springs Nitrile NBR Fluorocarbon FKM Recommended Spare Parts Part Number See Table 1 1A5896X0022 1L928608012 1A500528982 1A500528982 1A589544022 1A589544022 1H798714012 1H798714012 14B4240x012 14B4240x012 1A500528982 1A500528982 14B3350X012 14B3350X022 14B3350X032 14B3350X042 Description Pusher Post Stainless steel Lower Casing Assembly Aluminum Clevis Pin Plated steel 10 Machine Screw Stainless steel 2 required Machine Screw Stainless steel Stem Stainless steel Cotter Pin Stainless steel Stem O ring Nitrile NBR Fluorocarbon FKM Body Gasket Nitrile NBR Fluorocarbon FKM Cap Screw Plated steel 2 required Diaphragm Case Cap Screw Plated steel 12 required Hex Nut Zinc plated steel 12 required Spring Case Aluminum Disk Holder Stainless steel Orifice Stainless steel 1 2 13 mm Body Cast Iron NPT NPS 1 1 2 NPS 2 Flanged CL125 FF NPS 2 DN 50 CL250 RF NPS 2 DN 50 WCC Steel NPT NPS 1 1 2 NPS 2 Flanged CL150 RF NPS 1 1 2 DN 40 NPS 2 DN 50 Part Number 1L143311992 1H9751X0022 14B2155x012 1B420428982 1 8664 00 2 24B1765xX012
25. tly oriented and secure with the cap screws key 21 and hex nuts key 22 finger tight only 17 Insert the control spring key 1 into the spring case key 23 followed by the upper spring seat key 4 or 44 and adjusting screw key 2 18 Turn the adjusting screw key 2 clockwise until there is enough control spring key 1 force to provide proper slack to the diaphragm key 5 Using a crisscross pattern finish tightening the cap screws key 21 and hex nuts key 22 to 18 to 21 ft lbs 24 to 28 Nem of torque To adjust the outlet pressure to the desired setting refer to the Startup and Adjustment section 19 Install a replacement closing cap gasket key 35 if necessary and then install the closing cap key 3 20 Connect the downstream control line and refer to the Startup section before putting the regulator back in operation Parts Ordering When contacting your local Sales Office about this regulator include the type number and all other pertinent information stamped on the nameplate Type Y693 Ss gt sh 7 X f f 6 C 0 7 3484869 34B4832 B ONLY USED WITH THE FOLLOWING ONLY USED WITH THE FOLLOWING ONLY USED WITH GREEN STRIPE CONTROL SPRINGS CONTROL SPRINGS 2 TO 5 5 psig 138 mbar to 0 4 bar AND BROWN 0 5 TO 2 IN W C 1 to 5 mbar DARK BLUE 1 2
26. vents outside air from entering the vessel and reduces the possibility of atmospheric pressure collapsing the vessel Gas blanketing regulators respond to a slight decrease in internal vessel pressure caused by pump out or atmospheric cooling by throttling open to increase the flow rate of gas into the vessel When the vessel s liquid level has been lowered to the desired point and the vapor pressure reestablished the regulator throttles closed When the liquid level drops and vessel pressure decreases below the setting of the control spring the spring force on the diaphragm opens the disk assembly to supply the required flow of gas to the vessel When vessel pressure has been satisfied outlet pressure tends to increase slightly acting on the diaphragm When the outlet pressure exceeds the control spring setting the diaphragm moves to close the disk assembly Maintenance Regulator parts are subject to normal wear and must be inspected and replaced as necessary The frequency of inspection and replacement of parts depends upon the severity of service conditions or the requirements of local state and federal regulations Due to the care Emerson takes in meeting all manufacturing requirements heat treating dimensional tolerances etc use only replacement parts manufactured or furnished by Fisher To avoid personal injury property damage or equipment damage caused by sudden release of pressure isolate the regulator
27. w through the body is in the direction indicated by the flow arrow attached to the body Install the regulator as close as possible to the blanketed vessel using a straight run of pipe the same size or larger as the regulator body Position the body key 28 and or diaphragm spring case key 23 so it will not collect moisture or debris into the screened vent as shown in Figure 2 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 If a block valve is required install a full flow valve between the regulator and the blanketed vessel Attach a downstream pressure control line to the female connection in the lower spring case The female pressure connection is a 1 2 NPT in the steel or stainless steel lower spring case and a 3 4 NPT for the aluminum lower spring case Connect the other end of the control line to the vessel To allow for self drainage install the control line at an angle so that any liquid material will drain away from the regulator See Figures 4 and 5 for the location of the external control line connection If the regulator vents some gas or a leak develops in the system it indicates that service is required Failure to take the regulator out of service immediately may create a hazardous condition In hazardous or flammable gas service ven
Download Pdf Manuals
Related Search