GB forged steel flange valve
GB forged steel flange valve
Nominal diameter: DN15 ~ 50mm
Nominal pressure: PN16.0MPa
Main material: A105, LF2, F5, F11, F22, F304, F316, F304L, F316L
GB forged steel flange valve Valve Overview:
GB forged steel flange valve valve has three kinds of valve cover design, the first is a bolt-type valve cover, through the concave and convex surface connection, the use of stainless steel and flexible graphite spiral wound gasket, according to demand can also be used ring connection, the second is welded valve cover, Through the thread after sealing welding, according to demand can also be directly used rigid welding, the third is self-sealing valve cover, through the thread and self-sealing valve cover connection.
GB forged steel flange valve valve standard material schedule:
| Serial number | Part Name | CStoASTM | AStoASTM | SStoASTM | |
| A105 | F22 | F304 (L) | F316 (L) | ||
| 1 | Body | A105 | A182F22 | A182F304 (L) | A182F316 (L) |
| 2 | Seat | A276420 | A276304 | A276304 (L) | A276316 (L) |
| 3 | gate | A182F430 & 410 | A182F304 | A182F304 (L) | A182F316 (L) |
| 4 | Stem | A182F6 | A182F304 | A182F304 (L) | A182F316 (L) |
| 5 | Gasket | 316 clip flexible graphite | 316 clamp PTFE | ||
| 6 | cap | A105 | A276f304 | A276F304 (L) | A276F316 (L) |
| 7 | bolt | A193B7 | A193B16 | A193B8 | A193B8M |
| 8 | Pin | A276420 | A276 304 | ||
| 9 | Packing sleeve | A276410 | A182F304 (L) | A182F316 (L) | |
| 10 | Living bolts | A193B7 | A193B16 | A193B8 | A193B8M |
| 11 | Packing plate | A105 | A182F11 | A182F304 (L) | A182F316 (L) |
| 12 | Nuts | A1942H | A1944 | A1948 | A1948M |
| 13 | Stem nut | A276420 | |||
| 14 | fasten the screw nut | A1942H | A1944 | A1948 | A1948M |
| 15 | Nameplate | SS | |||
| 16 | Hand wheel | A197 | |||
| 17 | Gasket | A473431 | |||
| 18 | filler | Flexible graphite | PTFE | ||
| Applicable media | Water, steam, oil and so on | Water, steam, oil and so on | Nitric acid, acetic acid and so on | ||
| proper temperature | -29 ° C to 425 ° C | -29 ° C to 550 ° C | -29 ° C to 200 ° C | ||
Note: Other materials available to customer requirements can also be used. Seal surface material pairing Customer specified internal code
CS = carbon steel; AS = alloy steel; SS = stainless steel;
GB forged steel flange valve size (MM) and weight (KG)：
| NPS | Shrinkage | 3/8 " | 3/4 " | 1" | 11/4 " | 11/2 " | 2" | ||
| Full path | 3/8 " | 1/2 " | 3/4 " | 1" | 11/4 " | 11/2 " | 2" | ||
| L | 79 | 79 | 92 | 111 | 120 | 120 | 140 | 178 | |
| H (open) | 158 | 158 | 169 | 197 | 236 | 246 | 283 | 330 | |
| W | 100 | 100 | 100 | 125 | 160 | 160 | 180 | 200 | |
| Weight | Bolt type | 2.1 | 2.0 | 2.3 | 4.3 | 5.9 | 6.9 | 11.1 | 15.2 |
| Welding type | 1.8 | 1.7 | 2.0 | 3.8 | 5.1 | 6.1 | 10.2 | 14.2 | |
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