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Hard sealing wafer butterfly valve
It is widely used on industrial pipelines such as metallurgy, electric power, petrochemical industry, 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 on industrial pipelines such as metallurgy, electric power, petrochemical industry, water supply and drainage and municipal construction to regulate flow and cut off fluid.
Product features
·The wafer type hard sealing butterfly valve adopts a three eccentric sealing structure, and the valve seat and butterfly plate are free of wear, with the sealing function of tightening as the valve is closed. Compensatory between sealing surfaces, zero leakage.
·The seal ring is made of stainless steel multi-layer/stainless steel. It has the double advantages of metal hard seal and elastic seal. It has excellent sealing performance, corrosion resistance, long service life and other characteristics no matter at low temperature or high temperature.
·The sealing surface of butterfly plate is made of hardfacing stainless steel hard alloy, which is wear resistant and has a long service life.
·The wafer type hard seal butterfly valve has a two-way sealing function, and can be installed in any direction without the restriction of medium flow direction or the influence of space position.
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 D373H/Y/F | Manual/worm gear |
| Pneumatic D673H/Y/F | Switch/regulation/fast switching/explosion-proof |
| Electric D973H/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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