1900 Standard Series - Allied Valve Inc

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Materials (Contd.)Conventional SRV 1900-35 Series (Balanced Bellows)1900-35 Series Safety Relief Valve211920271117181513146863897654661716671262651043443211900.24 | Dresser Consolidated ®
Materials (Contd.)For Gas, Vapor, and Liquid Service 1900-35 SeriesSRV 1900 Balanced BellowsSRV 1900 Balanced Bellows (Contd.)PartNo.NomenclatureBalanced Bellows ValveMaterial (-35) 1PartNo.NomenclatureBalanced Bellows ValveMaterial (-35) 11 Base(1905-1918) ASME SA216 WCC Carbon Steel(1920-1928) ASME SA217 WC6 Alloy Steel26 Cap Set Screw Carbon Steel27 Cap Gasket Soft Iron28 Release Nut Carbon Steel1ABase Plug(1905-1918) Carbon Steel(1920-1928) 316 Stainless Steel29 Release Locknut Carbon Steel30 Lever Malleable Iron31 Lifting Fork Malleable Iron2 Nozzle 316 Stainless Steel3 Adjusting Ring 316 Stainless Steel4 Adjusting Ring Pin 316 Stainless Steel5 Adjusting Ring Pin Gasket Soft Iron6 Disc32 Lever Shaft 410/416 Stainless Steel33 Packing 316 Stainless Steel 234 Packing Nut 410/416 Stainless Steel35 Top Lever Malleable Iron36 Drop Lever Malleable IronSolid Metal Flat SeatThermodisc316 Stainless Steel616 Stainless Steel37 Gag Carbon Steel38 Sealing Plug Carbon Steel7 Disc Retainer Inconel X-7508 Disc Holder 316 Stainless Steel9 Guide 316 Stainless Steel10 Guide Gasket Soft Iron11 Bonnet ASME SA216 WCC Carbon Steel12 Bonnet Gasket Soft Iron13 Base Stud ASME SA193 B7 Alloy Steel14 Stud Nut ASME SA194 2H Carbon Steel15 Spindle 410 Stainless Steel16 Spindle Retainer Inconel X-75017 Spring Washer Carbon Steel18 Spring(-450° to -76°F) 316 Stainless Steel(-75° to 800°F) Alloy Steel(801° to 1000°F) Tungsten Steel or Inconel X-75039 Sealing Plug Gasket Soft Iron42 Limit Washer (D-2 & E-2) 316 Stainless Steel43 Bellows Inconel 625 LCF43 Bellows Nut 316L Stainless Steel43 Bellows Flange 316L Stainless Steel44 Bellows Gasket Soft Iron62 Piston 304 Stainless Steel63 Piston Guide 316 Stainless Steel64Piston Retainer Ring(D-F only) (Not Shown)Inconel X-75065 Seal Ring Graphitar Grade 6766 Seal Ring Expander 410 Stainless Steel67 Piston Lock Screw 18-8 Stainless Steel68 Piston Guide lock Screw 18-8 Stainless Steel69Piston Plate (D-F only)(Not Shown)316 Stainless Steel19 Adjusting Screw 416 Stainless Steel20 Adjusting Screw Nut 416 Stainless Steel21 Screwed Cap Carbon Steel22 Bolted Cap Carbon Steel23 Packed Cap Carbon Steel24 Plain Cap Malleable Iron25 Cap Bolt Carbon SteelNotes:1. Other material variations are available. Balanced pistoncomponents will be per the bellows “-30” type, except in “X3”and “X4” variations. (S3, S4, etc.). In these cases, thematerials for the piston, lock screws, seal ring expander, andpiston guide may be changed. The Seal Ring will remain asGraphitar Grade 67.2. With Flexible Graphite Fillers (Spiral Wound).1900 Series Safety Relief Valve | 1900.25
Page 1: Pressure Relief Valves1900 Standard
Page 4 and 5: Conversion TableAll the USCS values
Page 6 and 7: Scope of Design1900 Series Overview
Page 8 and 9: Scope of Design (Contd.)1900 Series
Page 10 and 11: Scope of Design (Contd.)1900 Series
Page 12 and 13: Scope of Design (Contd.)How Pressur
Page 14 and 15: Scope of Design (Contd.)Product Fea
Page 16 and 17: Scope of Design (Contd.)1900 Steam
Page 18 and 19: Scope of Design (Contd.)1900 Restri
Page 20 and 21: Scope of Design (Contd.)1900 Soft S
Page 22 and 23: MaterialsConventional SRV 1900 Seri
Page 24 and 25: Materials (Contd.)Conventional SRV
Page 28 and 29: Materials (Contd.)1900 Soft Seat (D
Page 30 and 31: Materials (Contd.)1900 Liquid Trim
Page 32 and 33: Materials (Contd.)1900 Sour Gas (SG
Page 34 and 35: Materials (Contd.)Corrosive Service
Page 42 and 43: Materials (Contd.)Low Temperature (
Page 44 and 45: Materials (Contd.)1900 Valves for L
Page 46 and 47: Materials (Contd.)O-Ring Selection
Page 48 and 49: Accessories (Contd.)1900 Caps, Leve
Page 50 and 51: Accessories (Contd.)Bolted CapConso
Page 52 and 53: Accessories (Contd.)Cap and Lever C
Page 54 and 55: Dimensions & Weights1900 Flanged Se
Page 56 and 57: Dimensions & Weights (Contd.)ValveT
Page 64 and 65: Pressure / Temperature (Contd.)Valv
Page 72 and 73: Pressure / Temperature (Contd.)Pres
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Pressure / Temperature (Contd.)Pres
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Capacities (Contd.)Valve Capacity f
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Capacities (Contd.)OrificeDesignati
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Capacities (Contd.)OrificeDesignati
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Valve Configuration CodeMATERIAL CL
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Valve Configuration Code (Contd.)Le
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1900 Standard Series - Allied Valve Inc

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