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Forged steel flange stop valve
Widely used in petroleum, chemical, natural gas, petrochemical, coal chemical and other industries
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Introduction
Product use
·The valve is widely used in petroleum, chemical, natural gas, petrochemical, coal chemical and other industries.
Product features
·The structure is simple, and the manufacturing and maintenance are convenient.
·The sealing surface is not easy to wear and scratch, and has good sealing performance. There is no relative sliding between the valve flap and the valve body sealing surface when opening and closing, so the wear and scratch are not serious, the sealing performance is good, and the service life is long.
·When opening and closing, the valve disc travel is small, so the height of the stop valve is smaller than that of the gate valve, but the structure length is longer than that of the gate valve.
·The fluid resistance is large, because the medium channel in the valve body is tortuous, the fluid has resistance, and the power consumption is large.
·Forged steel stop valves include flange type and welding type.
standard specification
| Design Criteria | GB/T7746 |
| Structure length | GB/T12221 |
| Flange connection size | JB/T82.1～82.4-94 |
| Inspection and test | GB/T13927、JB/T 9092、GB/T 26480 |
Model and transmission mode
| Manual J41H | Manual |
| Manual J941H | Switch/regulation/intelligent/explosion-proof |
Main parts and materials
| Valve body and bonnet | Carbon steel |
| Valve seat | Carbon steel |
| Stem | 20Cr13 |
| 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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