Emerson Anderson Greenwood 9300 Series Installation And Maintenance Instructions Manual Download Page 19 | Manualshive

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Anderson Greenwood

SerieS 9300 Pilot oPerated Safety relief ValVeS

InstallatIon and MaIntenance InstructIons

fiGUre 9

Series 93 and 93t pressure pilot (below 15 psig)

See detail B

figure 13

See detail a

figure 13

See figure 7 or 8

exhaust

to process

to main valve dome

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Summary of Contents for Anderson Greenwood 9300 Series

Page 1: ...erty often depends on the proper operation of the safety valve The valve must be maintained according to appropriate instructions and must be periodically tested and reconditioned to ensure correct function VCIOM 06024 US 15 01 wArninG The protection and safety of equipment property and personnel depends on the proper operation of the safety valves described in this manual All Emerson safety valve...

Page 2: ...e pressure relief valve 9304V Negative pressure relief valve Pilot operated valves use a pilot to control pressure over a large unbalanced member in the main valve such as a diaphragm piston The large overbalance means a much larger force on top of the seat compared to process forces pushing up on the seat At set pressure the pilot relieves the pressure quickly permitting the main valve seat to op...

Page 3: ...ogenic and chemical applications where an elastomer seal is not satisfactory 1 6 4 Series 400B The Series 400B is used with 8 10 and 12 combination weight loaded vacuum and pressure valves where quick relieving of dual chamber diaphragms is required to open the main valve 2 2 Main valve single chamber diaphragm disassembly Refer to figure 1 1 Remove the pilot as a unit and the tubing from the diap...

Page 4: ...during case assembly removal 8 On valve sizes 2 through 4 remove the diaphragm assembly 150 160A 170A lower case 280 shaft 320 and seat plate assembly 910 920 from the main valve body 100 9 On valve sizes 6 and larger remove seat plate assembly 910 920 from shaft 320 prior to removing diaphragm assembly 150 160A 170A lower case 280 and shaft 320 To remove spin diaphragm plates 150 160A 170A assemb...

Page 5: ...assembly includes item 330 as part of assy 330 Helicoil 340 Sleeve guide 360 Bushing split not used on 2 and 3 or high pressure 420 Hub seat 430 Spacer seat 440 Bushing seat 450 Nut seat jam 460 Nozzle assembly 500 Bushing guide 520 Nut jam 530 Nut used on dual chamber diaphragm only 570 Secondary seat high pressure only 580 Washer 590 Washer 600 Gasket clamp plate 610 Seat film 620 Gasket case 63...

Page 6: ...s Installation and Maintenance Instructions See detail E See detail D See detail E See detail D Seat plate assembly low pressure stainless steel Seat plate assembly low and high pressure aluminum high pressure stainless steel Internal pressure pickup not included with remote pressure sense See detail C Figure 1 9390P Single chamber diaphragm assembly ...

Page 7: ...0A 160A 150 280A 340 360 320 Anderson Greenwood Series 9300 Pilot Operated Safety Relief Valves Installation and Maintenance Instructions See detail E See detail D Seat plate assembly See detail B Dome port See detail A See detail C Figure 2 9390C Dual chamber diaphragm assembly Remote pressure sense shown ...

Page 8: ...60 580 590 175A 600 320 Anderson Greenwood Series 9300 Pilot Operated Safety Relief Valves Installation and Maintenance Instructions Retaining wire for assembly and disassembly Figure 3 Detail A and B assembled Detail D Single chamber diaphragm Detail C Used only with dual chamber diaphragm model Detail A Auxiliary diaphragm chamber assembly Detail B ...

Page 9: ...e hub assembly Warning No lapping or machining of seat plate allowed 5 Inspect threaded parts and sealing surfaces and if damaged replace Otherwise clean all metal parts with oil free solvent and dry with lint free towel 6 The new seat film 610 is supplied as a square sheet of PTFE without holes for the screws To install secure the larger end of the seat hub with the 9 16 wrenching flat into a vis...

Page 10: ...ance Instructions Figure 5 detail E Main valve seat plate assembly internal pressure sense shown Aluminum internals Low pressure stainless steel internals High pressure stainless steel internals 2 Inlet size 3 thru 12 inlet size 2 Inlet size 3 thru 12 inlet size 2 Inlet size 3 thru 12 Inlet size ...

Page 11: ...Inspect plates 150 160 for cracks warpage Clean all metal parts with oil free solvent and dry with lint free towel 5 Proceed with this step only on disassembly of main valve dual diaphragms Inspect lift rod 250 straightness and ensure small diameter tip is not damaged Also raise the lift rod 250 up and check the surface for damage 6 Proceed with this step only on disassembly of main valve dual dia...

Page 12: ...ratches If they cannot be removed with a crocus cloth or finer sandpaper the nozzle 460 must be replaced 1 The contact surfaces must be clean free from grease and dry 2 Remove the protective strip on the adhesive tape 3 Lightly press in place as shown below Upper case s and top of body Nozzle Section A A Put tape just inside of bolt holes overlapping ends at a bolt hole Put tape on top case only P...

Page 13: ...nto lower auxiliary case 280B lifting rod wire through the center of diaphragm bushing 240 Holding the wire spin diaphragm assembly 2 full turns clockwise 13 Now bend the wire in half and spin the lift rod 250 counterclockwise approximately 20 turns This is the starting position for setting the lift of the auxiliary diaphragm 170B 14 To set lift position position the edge of a ruler at the top edg...

Page 14: ...ription Item Description 1 Body 20 Bolt 35 Ring lantern 2 Case diaphragm lower 21 Pin groove 36 Spool 3 Case diaphragm upper 22 Bushing guide 37 Gasket body 4 Bonnet assembly 23 O ring 013 38 Slipper feedback diaphragm 5 Cap bonnet 24 Spindle 41 Screen inlet 6 Screw pressure adjustment 25 Ferrule tubing 42 Plug pipe 7 Nut lock 26 Retainer inlet connection 43 Stud bonnet 8 Washer spring 27 Connecto...

Page 15: ...points with Dow Corning No 33 silicone grease or equivalent Note for oxygen service valves use only lubricants suitable for this service such as Krytox 240AC 2 The spindle O ring and bearing surface should be lubricated with Dow Corning FS 3451 or equivalent Note do not lubricate inlet or outlet seat O rings 3 Assemble the diaphragm lower case 2 to the body 1 Note for Pilots with Kalrez O rings us...

Page 16: ...d its set pressure ranges from 16 psig to 50 psig The 93 pilot is different from the 93T and 91 pilot in that it uses elastomer seat seals and diaphragms 1 Remove cap 760 and adjusting screw 790 and adjusting screw seal 720 for vacuum pilot Remove bonnet bolts 770 seals 700 for vacuum pilot bonnet 200 spring 840 and spring washer 820 2 On Series 91 and 93T pilots loosen boost tube fitting 310 on b...

Page 17: ...he body 100 6 Lay a straight edge across the body 100 and check the gap between the straight edge and the spindle spacer 170 Add or remove shim s 490 as required to make the top of the spindle spacer 170 even with the top of the body 100 7 Align the small hole in the lower diaphragm case 220 with the hole in the spindle diaphragm 500 Then align the spindle diaphragm hole 500 with the hole in the b...

Page 18: ...3T only 430 Ring retainer 93T only 440 Nut swage 93T only 450 Insert bonnet part of item 200 assembly 460 Wire 470 Seal dia 480 Ferrule not shown Item Description 490 Washer shim for stack height only 500 Diaphragm spindle 510 Diaphragm sense boost 520 Diaphragm sense 93T only 550 Spindle 560 Plate check 570 Seat 580 Gasket bonnet 590 Seal boost tube 600 Seal thread 610 Seal body bolt 620 Seal blo...

Page 19: ...40 520 510 500 690 A A 240 250 260 View A A Anderson Greenwood Series 9300 Pilot Operated Safety Relief Valves Installation and Maintenance Instructions Figure 9 Series 93 and 93T pressure pilot below 15 psig See detail B Figure 13 See detail A Figure 13 See Figure 7 or 8 Exhaust To process To main valve dome ...

Page 20: ...630 340 610 350 620 380 330 320 400 760 460 840 750 780 830 470 150 520 240 250 260 680 640 Anderson Greenwood Series 9300 Pilot Operated Safety Relief Valves Installation and Maintenance Instructions View A A Figure 10 Series 91 and 93 pressure pilot Above 15 psig See detail A Figure 13 ...

Page 21: ...Anderson Greenwood Series 9300 Pilot Operated Safety Relief Valves Installation and Maintenance Instructions Figure 11 Series 93 vacuum pilot See detail B See detail A To process To process Main valve dome ...

Page 22: ...afety Relief Valves Installation and Maintenance Instructions Figure 12 Detail A Series 93 pressure above 15 psig Detail A Series 93 pressure below 15 psig and vacuum Detail A Series 91 pressure above 15 psig Detail A Series 93T pressure below 15 psig ...

Page 23: ...210 670 510 520 640 220 590 280 290 300 310 480 Anderson Greenwood Series 9300 Pilot Operated Safety Relief Valves Installation and Maintenance Instructions Figure 13 Detail B Series 93 pilot pressure below 15 psig and vacuum Detail B Series 93 pilot pressure below 15 psig ...

Page 24: ...knut once the desired set pressure is achieved Note adjust the set pressure for 101 1 of the nameplate set pressure 6 Cycle the pilot valve a minimum of 5 times to assure that the dome pressure reduction at set pressure is consistent Increase the pressure very slowly in order to obtain an accurate reading of the cracking pressure and to expose any erratic performance Note cracking pressure on vacu...

Page 25: ...t pilot Vent Vent Positive pressure pilot Negative pressure pilot Test pilot Reseat pressure adjustment Reseat vacuum adjustment on back side Dome pressure gauge Dome vacuum gauge Accumulator 25 ft3 007 m3 Accumulator 25 ft3 007 m3 Pipe min Pipe min Supply pressure gauge Supply vacuum gauge Supply pressure Supply vacuum Supply port NPT Supply port NPT Figure 14 ...

Page 26: ...t pressure 3 6 3 Adjustment Tolerances Pilot action Set press Set press tolerances Crack press set Reseat press set Snap 4 WC to 7 WC 2 WC 75 90 1 Snap 7 WC to 1 0 psig 3 90 90 1 Snap Above 1 psig 3 95 92 1 Snap 4 WC to 7 WC 2 WC 75 90 1 Snap 7 WC to 1 0 psig 3 90 90 1 Snap 1 PSI to 14 7 psig 3 95 92 1 Modulating action 4 WC to 7 WC 2 WC 75 100 Modulating action 7 WC to 1 0 psig 3 90 100 Modulatin...

Page 27: ... vacuum set pressure Valves with weighted diaphragms shall be tested for leakage at 50 of their weighted set 4 1 3 Back flow preventers and or field test The use of some field test connection or back flow preventers necessitates the use of check valves These valves shall be installed per the applicable assembly drawings and in the free flow direction shall open at less than 5 W C The check valves ...

Page 28: ...ilar to that shown in Figure 13 should be used Such a test kit is available from Anderson Greenwood under the part number 04 4812 001 plus additional dash numbers for the pressure gages required 4 3 2 Field test procedure for flowing modulating or snap action pilots 1 Connect the gas bottle as shown in Figure 16 2 Close vent valve C 3 Open block valve B to supply regulator Note regulator pressure ...

Page 29: ... with the original factory installed protective measures left in place This includes all desiccants flange protectors and factory seals Anderson Greenwood Series 9300 Pilot Operated Safety Relief Valves Installation and Maintenance Instructions Block valve A Field test valve B Block valve C Nitrogen bottle Test gauge Flexible hose Figure 16 Valves should be placed on wooden pallets or other blocki...

Page 30: ...7 Tighten diaphragm assembly 8 Seat plate not fully threaded on hub 8 Install seat per assembly instructions 7 Main valve spare parts and repair kits Soft goods repair kits contain all the diaphragms seals and seats to a repair valve To order a kit specify the base number and select the last three digits from the following tables To ensure the purchase of the correct repair kit the order should sp...

Page 31: ...marine 8 3 93T Pilot Repair Kit 06 0235 XXX Pilot Series Pressure Kit type Material Pressure Vacuum 93T Pilot 4 WC 15 psig Soft goods PTFE 139 158 93T Pilot 4 WC 15 psig Bolt SST 288 288 93T Pilot marine 4 WC 15 psig Bolt SST 701 701 8 4 400A B Pilot Repair Kit 06 0235 XXX Pilot Series Pressure Kit type Material Pressure Vacuum 400A B Pilot 4 WC 10 WC Soft goods NBR 1 127 149 400A B Pilot 4 WC 10 ...

Page 32: ...ft goods PTFE 144 Diaphragm Bolt SST 414 Ball check Soft goods NBR 145 Ball check Soft goods FKM 146 Ball check Soft goods EPR 147 Ball check Soft goods Kalrez 148 10 1 Lubricants Used on Pilot Parts Pilot parts Description Lubricant 1 Pressure adjustment screw and locknut Threads Dow corning 33 05 1500 012 Diaphragm and gaskets 91 and 93T pilots Seal surfaces between cases and spacer ring Slick s...

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