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Cast steel hard seal welded butterfly valve
It is widely used in industrial pipelines such as gold, electricity, petrochemical, urban heating, water supply and drainage and municipal construction to regulate flow and cut off fluid.
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Introduction
Product use
It is widely used in industrial pipelines such as gold, electricity, petrochemical, urban heating, water supply and drainage and municipal construction to regulate flow and cut off fluid.
Product features
·The valve is of welded structure, so that the valve and pipeline plane can achieve permanent zero leakage.
·This valve has no flange, which brings great convenience and beauty to the pipeline and thermal insulation binding.
·The three eccentric sealing structure is adopted, and the valve seat and butterfly plate are almost free of wear. It has the sealing function of tightening as it looks. Ideal hard seal butterfly valve for bubble grade sealing in high temperature, high pressure and fire protection applications.
·The sealing surface of butterfly plate is made of hardfacing stainless steel hard alloy, which is wear resistant and has a long service life.
standard specification
| Design Criteria | GB/T12238 |
| Structure length | GB/T12221 |
| Flange connection size | GB/T1724.6 |
| Inspection and test | GB/T13927 |
Model and transmission mode
| Manual D363H/Y/F | Worm gear |
| Pneumatic D663H/Y/F | Switch/regulation/fast switching/explosion-proof |
| Electric D963H/Y/F | Switch/regulation/intelligent/explosion-proof |
Main parts and materials
| Valve body | WCB/304/316 |
| Valve plate | WCB/304/316 |
| Stem | 20Cr13 |
| Filler | Flexible graphite/PTFE |
| Valve seat | Hardfacing 507Mo |
| Seal ring | Stainless steel multi-layer/stainless steel |
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Message
Main： Butterfly valves, blind valves, gate valves, globe valves, ball valves, check valves, regulating valves, gates, metallurgical valves, hydraulic dams
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