| Customization: | Available |
|---|---|
| Material: | A105.F304.F304L.F316.F316L.F11.F22.F5.F9 |
| Connection Form: | Threaded (Thd) / Butt Welded (Bw) / Socket Welded |
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Standard specification.
Design and manufacture:API 602,BS 5352,ANSI B16.34.
Connection ends conform to:
-Socket welded ends:ANSI B16.11.
-(NPT threaded)Screw ends:ANSI B1.20.1.
-Butt-welded ends:ANSI B 16.25.
-Flanged ends:ANSI B 16.5.
Inspection & testing:API 598.
NACE MR 0175 on request
Tag: MSS SP 25.
Construction features.
Spring Loaded To Ensure That Even In The Low-Pressure Sealing Performance As Well.
Y pattern straight-through flow path,greatly reducing flow resistance.
Application.
For valves which size is smaller than 2"(DN50), forged steel valves are recommended. Compared with castings,forged valve offer the advantages of more uniform structure, greater density, higher strength integrity, enhanced dimensional characteristics and closer dimensional tolerances.Owing to so many advantageds,the forged valve can be widely used in the fields of petroleum,natural gas,chemical,power and other industries.
Main Parts and Material.
| No | Part Name | Carbon steel | Alloy steel | Stainless steel | |
| 1 | Body | A105 | A182 F22 | A182 F304(L) | A182 F316(L) |
| 2 | Seat | A276 410 | A276 304 | A276 F304(L) | A276 F316(L) |
| 3 | Disc | A276 420 | A276 304 | A276 F304(L) | A276 F316(L) |
| 4 | Nut | A194 2H | A194 4 | A194 8 | A194 8M |
| 5 | Rocker | A105 | A182 F22 | A182 F304(L) | A182 F316(L) |
| 6 | Gasket | 316+graphite | 316+PTFE | ||
| 7 | Bonnet | A105 | A182 F22 | A182 F304(L) | A182 F316(L) |
| 8 | Bolt | A193 B7 | A193 B16 | A193 B8(M) | A193 B8(M) |
| 9 | Pin | A276 420 | A182 F304 | A182 F316 | |
| Applicable medium | Water,oil,steam.,etc | Water,oil,steam.,etc | Acid.,etc | ||
| Applicable temp. | -29~425°C | -29~550°C | -29~200°C | ||
| NPS | 3/8 | 1/2 | 3/4 | 1 | 1 1/4 | 1 1/2 | 2 | |
| L | 800LB | 79 | 79 | 92 | 111 | 120 | 120 | 140 |
| 900~1500LB | 92 | 111 | 111 | 120 | 120 | 140 | 178 | |
| W | 800LB | 61 | 61 | 78 | 84 | 101 | 120 | 133 |
| 900~1500LB | 79 | 79 | 79 | 97 | 105 | 120 | 140 | |
| WT(kg) | 800LB | 1.1 | 1.0 | 1.9 | 3.9 | 4.5 | 7.3 | 10.0 |
| 900~1500LB | 3.1 | 3.0 | 3.6 | 4.3 | 6.1 | 8.8 | 12.6 | |
| Port | Full Port(FP)/Reduced Port(RP) |
| Structure | BC(Bolted Cover),WC(Welded Cover),PSC(Pressure Self-sealing Cover) |
| Disc | Swing type,Piston type or Ball type |
| Rating | Class 150/ 300/ 600/ 800/ 900/ 1500/ 2500 |
| Size Range | 3/8" to 2" |
| End Options | FLG, SW(Socket Welded), Threaded(NPT/BSP), BW(Butt Welded) |
| Optional Materials | -Carbon Steel: A105, LF2 -Stainless Steel: F304, F304L, F316, F316L -Duplex: F51, F55 -Alloy: F1, F5, F5A, F9, F11, F22 |
| Special Design | Y pattern forged check valve |
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