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 Butterfly valve |
Flange type conical surface hard seal butterfly valve
Main performance parameters
Nominal pressure |
1.0 |
1.6 |
2.5 |
4.0 |
MPa |
Shell test pressure |
1.5 |
2.4 |
3.8 |
6.0 |
Seal test pressure |
1.1 |
1.8 |
2.8 |
4.4 |
Suitable temperature |
≤250, ≤350, ≤450, ≤500 |
℃ |
Suitable medium |
water, hot air, steam, Oil gas, etc |
The materials of major parts
Name of of parts |
valve body, Butterfly plate |
Valve shaft, valve seat |
Sealing surface |
packing |
Materials |
Carbon steel, Stainless steel |
Stainless steel |
Elastic sheet metal |
Flexible graphite, etc |
Executive standards
1, Size of Flange: GB9115
2, Structure length: GB12221
3, Inspection and test: GB/T13927
Structure diagram:
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