Short Description

Model No.: pressure-seal-swing-check-valve

China Valves Manufacturer offers pressure-seal swing check valve.

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Key Specifications / Features

Type: Pressure-Seal Swing Check Valve
Design & Manufactured to API 6D, ASME B16.34 or Equivalent
P.T Ratings to ASME B16.34
Face to Face dimensions to ASME B16.10
Flanged Ends to ASME B16.5
Butt-weld Ends to ASME B16.25
Threaded Ends to ASME B1.20.1
Socket-weld Ends to ASME B16.11
Valves Marking to MSS SP-25
Inspect & Tested to API 598
Size Ranges from 1 1/2” thru 24”
Pressure Ratings from Class 600 to Class 2500, PN110 to PN420
Structures in Bolted or Pressure Sealed Union Cover
Ends Connections in Flanged R.F or RTJ, Threaded NPT, BSPT, Welded S.W, B.W and Grooved
Body Materials available in Cast Carbon Steel, Low Temp. Carbon Steel, Alloy Steel, Stainless Steel, Monel, Alu. Bronze etc.
Trim Materials available in 13%Cr, F11, F22, SS304, SS304L, SS316, SS316L and other specials.

What is a pressure-seal swing check valve

A pressure-seal swing check valve is intended for high pressure, high temperature applications in all types of fluid except where severe coking is a factor. The design and material selections provide excellent service in steam-generation stations, industrial chemical plants and thermal power plants.
They are recommended for use with steam, air, gas, water, and high flow rate steam lines.

Applicable Standards of pressure-seal swing check valve

  • Design: ASME B16.34, API6D 
  • Fire safe: API 607 
  • Anti static: API 608, API6D 
  • Face to face: ASME B16.10, API6D
  • Welding ends: ASME B16.25
  • Inspection and test: API 598, API 6D

We focus on valves in standard and special materials as customer request.
Our main materials show as the follows:
Any request for other materials, please contact our machinery sales or engineering team on email.

Special Material Titanium or Titanium alloy series Titanium (Gr.2,Gr.3,Gr.5,Gr.7,Gr.12)
Nickel alloy series Ni6,Ni200,Ni201
Monel 400,Monel k500
Inconel 600/625/690/750
Incoloy 800/825/800H/800HT
Hastelloy B3/C/C4/C22/C276/G30
Zirconium alloy series Zirconium 702/703/705
Bronze alloy series Nickel aluminum bronze C95800
(Super) Duplex Steel ASTM F51/F53/F55
Other corrosion resistance Alloy 20,AISI 321,310,904L
Normal Material Carbon Steel WCB,WCC,LCB,LCC,A105N,LF2
Alloy Material (Low Temperature) LC1,LC2,LC3,LF3
Alloy Material (High Temperature) WC1,WC6,WC9,C5,C12A
Stainless Steel CA15,CF8,CF8M,CF3,CF3M

Dimensions of Pressure-Seal Swing Check Valve

20211006124924 43485 - Pressure-Seal Swing Check Valve

Pressure-seal swing check valve standard material specifications

Part Name CS to ASTM AS to ASTM SS to ASTM
Type A105 Type F22 Type F304(L) Type F316(L)
1 Seat Ring A276 410 A276 304 A276 304(L) A276 316(L)
2 Pin A276 420 A182 F304 A182 F316
3 Pressure Ring A276 304L A276 316(L)
4 Pressure Seat A105 A182 F304 A182 F304(L) A182 F316(L)
5 Body A105 A182 F22 A182 F304(L) A182 F316(L)
6 Bonnet A105 A182 F22 A182 F304 L A182 F316(L)
7 Bolt A193 B7 A193 B16 A193 B8 A193 B8M
8 Quarter Ring A276 420 A182 F304 A182 F316
9 Pont levis A105 A182 F22 A182 F304 L A182 F316(L)
10 Hinge A105 A182 F22 A182 F304 L A182 F316(L)
11 Disc A276 420 F304 A182 F304(L) F316(L)
12 Nut A194 2H A194 4 A194 8 A194 8M
Suitable Medium W.O.G. etc W.O.G. etc HNO3,CH3OOH etc
Suitable Temperature -29℃~425℃ -29℃~550℃ -29℃~180℃

Note: Other materials are available upon request.

Pressure-seal piston check valve dimensions (mm) and weights (kg)

1/2 3/4 1 1-1/4 1-1/2 2
L 900~1500Lb 140 140 140 178 178 216
2500Lb 186 186 186 232 232 279
H 117 117 117 152 152 195
Weights 900~1500Lb 8.2 7.8 7.7 19.8 19.2 21.3
2500Lb 10.0 9.6 9.4 21.5 21.1 22.8

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