API 598 API 602 Forged Steel Valve Welded bonnet Check Valve B1.20.1 B16.11 B16.25
Forged Stainless Steel Check Valve - Threaded
Forged Steel Check Valves: API 602, Swing, Lift Check, Bolted Bonnet, Pressure Seal, Bolted Cover, Socket Welded Ends, Class 150 - 2500, 1/2 - 2 Inch
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Reduce Bore Forged Steel Valve Intergral Flange Piston Check Valve BC F11 F51 B16. 34
Forged Steel Check Valves
Forged Steel Check Valves are designed and manufactured according to BS 5352 to meet requirements of small Pipelines up to 50NB. They are available either with Threaded or Socket Weld ends. Hard Faced Trim material ensures perfect Sealing and long life. Properly guided Lift type Disc which acts on its own according to flow direction. These Valves are generally suitable for horizontal installation.
Check Valves are available in varied materials like Forged Carbon Steel conforming to A105; Forged Alloy Steel like LF2, F11, F22, and Forged Stainless Steel like F304, F304L, F316 and F316L. Size range commences from 10NB through 50NB and pressure rating up to ANSI 800#.
Forge valves are available in two bonnet designs. The first design is the Bolted Bonnet, with male-female joint, spiral wound gasket, made in F316L/graphite. Ring joint gasket are also available on request. The second design is the welded bonnet, with a threaded and seal welded joint. On request a full penetration strength welded joint is available.
The check valves are also available in three different design configurations. These are piston check, ball check, or swing check designs.
Features
- Forged steel check valves conform to ASME B16. 34
- Each tested according to API 589, and marking is per MSS SP-25
- Three bonnet designs A) Bolted B) Welded C) Pressure seal
- Three different design configurations A) Piston check B) Ball check C) Swing check
- Investment casting
- Working pressure: 200 PSI WOG
- Temperature range: -20 - 232°C
- Materials: WCB, SS 316 and SS 304
Standard
- Normal Size: 1/2”~2”
- Pressure rating: 150 LB~2500 LB
- Design Standard: API 602
- Design Features: Piston or Swing type, BB, WB, PSB.
- Materials: A105, LF2, F11, F22, F5, F304, F316, F304L, F316L, F51
- Test Standard: API 6D, API 598
Materials
| NO. | Part Name | CS to ASTM | AS to ASTM | SS to ASTM |
| Type A105 | Type F22 | Type F304(L) | Type F316(L) |
| 1 | Body | A105 | A182 F22 | A182 F304(L) | A182 F316(L) |
| 2 | Piston Disc | A276 410 | A276 304 | A276 304(L) | A276 316(L) |
| 3 | Gasket | S.S + Flexible Graphite | SS+PTFE |
| 4 | Bonnet | A105 | A182 F22 | A182 F304(L) A182 F316(L) |
| 5 | Nameplate | S.S |
| 6 | Bolt | A193 B7 | A193 B16 | A193 B8M | A193 B8M |
| 7 | Ball | A182 F304 | A182 F304 | A182 F304 | A182 F304 |
| Suitable Medium | W.O.G.etc | W.O.G.etc | HNO3 ,CH3OOH etc |
| Suitable Temperature | -29℃～425℃ | -29℃～550℃ | -29℃～180℃ |
Note:Other materials aer available upon request.
CS=Carbon Steel;AS=Alloy Steel;SS=Stainless Steel;
Dimension (mm) and Weight (Kg)
| NPS | Conv. | 3/8" | 1/2" | 3/4" | 1" | 11/4" | 11/2" | 2" | |
| Full | | 3/8" | 1/2" | 3/4" | 1" | 11/4" | 11/2" | 2" |
| L | 79 | 79 | 92 | 111 | 120 | 152 | 172 | 200 |
| H | 61 | 61 | 65 | 79 | 95 | 103 | 118 | 132 |
| Wieght | Bolted | 1.4 | 1.2 | 1.5 | 3.1 | 3.9 | 5.6 | 8.9 | 12.5 |
| Welded | 1.1 | 1.0 | 1.2 | 2.9 | 3.3 | 4.9 | 8.1 | 10.9 |
One Type Piston check valve 900LB～1500LB
Standard Material Specification
| NO. | Part Name | CS to ASTM | AS to ASTM | SS to ASTM |
| Type A105 | Type F22 | Type F304(L) | Type F316(L) |
| 1 | Body | A105 | A182 F22 | A182 F304(L) | A182 F316(L) |
| 2 | Piston Disc | A276 420 | A276 304 | A276 304(L) | A276 316(L) |
| 3 | Gasket | Corrugated SS+graphite | SS+PTFE |
| 4 | Bonnet | A105 | A182 F22 | A182 F304(L) A182 F316(L) |
| 5 | Nameplate | SS |
| 6 | Bolt | A193 B7 | A193 B16 | A193 B8M | A193 B8M |
| 7 | Ball | A182 F304 | A182 F304 | A182 F304 | A182 F304 |
| Suitable Medium | W.O.G.etc | W.O.G.etc | HNO 3 ,CH 3 OOH etc |
| Suitable Temperature | -29℃～425℃ | -29℃～550℃ | -29℃～180℃ |
Note:Other materials aer available upon request.
CS=Carbon Steel;AS=Alloy Steel;SS=Stainless Steel;
Dimension (mm) and Weight (Kg)
| NPS | Conv. | 3/8” | 1/2” | 3/4” | 1” | 11/4” | 11/2” | 2” | |
| Full | | 3/8” | 1/2” | 3/4” | 1” | 11/4” | 11/2” | 2” |
| L | 92 | 111 | 111 | 120 | 152 | 172 | 200 | 220 |
| W | 65 | 79 | 79 | 97 | 104 | 120 | 139 | 215 |
| Weights | Bolted | 1.6 | 3.4 | 3.3 | 5.5 | 6.0 | 9.2 | 12.9 | 16.2 |
| Welded | 1.3 | 3.2 | 3.1 | 4.8 | 5.4 | 8.5 | 11.2 | 14.3 |
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China Welded Bonnet Piston Check Valve manufacturer, Stv provides Piston Check Valve, body ASTM F304L, 304 TRIM, 800 LB Images
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