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Hemisphere valve (side mounted)
This product is suitable for metallurgy, chemical industry, petroleum, heat, water supply and drainage and other industries to cut off and regulate the medium.
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Introduction
Product use
This product is suitable for metallurgy, chemical industry, petroleum, heat, water supply and drainage and other industries to cut off and regulate the medium.
Product features
·The outer step of the valve seat is matched with the inner step of the valve body to prevent the ball from jamming or separating from the valve seat;
·When the eccentric valve body, eccentric ball, valve seat and valve stem are placed without movement, they will be automatically centered in the common path, and the closer they are closed during the closing process, so that the purpose of good sealing can be achieved completely. Therefore, the sealing performance of the eccentric hemisphere valve is safe and reliable;
·When the valve is opened and closed, the ball and valve seat are completely separated. It eliminates the wear of sealing elements and overcomes the problem that the sealing surface of traditional ball valve seat and ball is always worn
·When fully opened, the flow capacity is large, the pressure loss is small, and the medium will not deposit in the valve body;
·Long service life, wear-resistant sealing pair, and compensation, valve seat can be adjusted or replaced.
standard specification
| Design Criteria | GB/T12237 |
| Structure length | GB/T12221 |
| Flange connection size | JB/T79.1～4-1994 |
| Inspection and test | GB/T13927 |
Model and transmission mode
| ManualBQ347H/Y/F | Cochlear movement |
| PneumaticBQ647H/Y/F | Switch/regulation/fast switching/explosion-proof |
| ElectricBQ947H/Y/F | Switch/regulation/fast switching/explosion-proof |
Main parts and materials
| Valve body | QT450/WCB/304/316 |
| Sphere | WCB/304/316 |
| Stem | 20Cr13 |
| Valve seat | WCB+cemented carbide |
| Filler | Flexible graphite/PTFE |
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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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