| Customization: | Available |
|---|---|
| Type: | Straight-through |
| Material: | Carbon Steel |
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There are two types of valve cover design for vent and deluge valves. The first type is a bolted valve cover. Valves designed according to this design form are connected to the valve body with bolts and nuts, and sealed with a spiral wound gasket (made of 304 flexible graphite). When customers have special requirements, metal ring connection can also be used. The second design form is a welded valve cover. For valves designed in this design form, the valve body and valve cover are threaded and fully welded for sealing
Features
1.Construction:BB;OS&Y.Main Parts and Material
| No | Part Name | Carbon steel | Alloy steel | Stainless steel | |
| 1 | Body | A105N | A182 F22 | A182 F304(L) | A182 F316(L) |
| 2 | Seat | A276 410 | A276 304 | A276 304(L) | A276 316(L) |
| 3 | Disc | A182 F430 | A182 F304 | A182 F304(L) | A182 F316(L) |
| 4 | Gasket | 316+graphite | 316+PTFE | ||
| 5 | Stem | A182 F6A | A182 F304 | A182 F304(L) | A182 F316(L) |
| 6 | Bolt | A193 B7 | A193 B16 | A193 B8 | A193 B8M |
| 7 | Pin | A276 420 | A276 304 | ||
| 8 | Eyelet bolt | A193 B7 | A193 B16 | A193 B8 | A193 B8M |
| 9 | Nut | A194 2H | A194 4 | A194 8 | A194 8M |
| 10 | Nameplate | SS | |||
| 11 | Handwheel | A197 | |||
| 12 | Locking nut | A194 2H | A194 4 | A194 8 | A194 8M |
| 13 | Stem nut | A276 420 | |||
| 14 | Packing plate | A105 | A105 | A182 F304 | |
| 15 | Packing sleeve | A276 410 | A182 F304(L) | A182 F316(L) | |
| 16 | Packing | Flexible graphite | PTFE | ||
| 17 | Bonnet | A105 | A182 F22 | A182 F304(L) | A182 F316(L) |
| Applicable medium | Water,steam,oil.,etc | Water,steam,oil.,etc | Acid.,etc | ||
| Applicable temperature | -29~425°C | -29~550°C | -29~200°C | ||
| Size | L | L1 | W | H(Open) | Weight(kg) | |
| inch | mm | |||||
| 3/8" | 10 | 140.5 | 101 | 100 | 166 | 2.9 |
| 1/2" | 15 | 140.5 | 101 | 100 | 166 | 2.9 |
| 3/4" | 20 | 145.5 | 99.5 | 100 | 169 | 3.4 |
| 1" | 25 | 162 | 106.5 | 125 | 193 | 5.5 |
| 1 1/4" | 32 | 187 | 127 | 160 | 236 | 7.8 |
| 1 1/2" | 40 | 187 | 127 | 160 | 246 | 8.3 |
| 2" | 50 | 222 | 152 | 180 | 283 | 13.4 |
| Port | Full Port(FP)/Reduced Port(RP). |
| Structure | BB(Bolted Bonnet),WB(Welded Bonnet),PSB(Pressure Self-sealing Bonnet). |
| Rating | Class 150/ 300/ 600/ 800/ 900/ 1500/ 2500/ 4500. |
| Size Range | 3/8" to 2" |
| End Options | FLG, SW(Socket Welded), Threaded(NPT/BSP), BW(Butt Welded) |
| Carbon Steel | A105,LF2 |
| Stainless steel | F304,F304L,F316,F316L |
| Duplex | F51,F55 |
| Alloy | F1,F5,F5A,F9,F11,F22 |
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