Flange High Temperature Gate Valve
Introduction:
The opening and closing part of the flange high temperature gate valve is a plug-shaped disc, the sealing surface is flat or conical, and the valve disc moves linearly along the center line of the fluid. right angle.
Working Principle:
Flange high-temperature gate valves are forced-sealing valves, so when the high-temperature valve is closed, pressure must be applied to the disc to force the sealing surface not to leak. When the medium enters the valve six from the bottom of the disc, the resistance that the operating force needs to overcome is the friction force between the valve stem and the packing and the thrust generated by the pressure of the medium. The force to close the high-temperature valve is greater than the force to open the high-temperature valve. Therefore, the diameter of the valve stem must be large, otherwise the failure of the valve stem to bend will occur.
Structural Features:
1. Flange high temperature gate valve has compact structure, beautiful appearance and excellent performance. The valve disc and the valve stem adopt a flexible connection structure, which is flexible in opening and closing. The valve stem is designed with an inverted sealing pair to improve the service life and sealing performance of the valve.
2. The material matching of the flange high temperature gate valve sealing pair is reasonable, the friction between the valve disc and the valve seat is very small during operation, and the service life is long.
3. The surface of the flange high-temperature gate valve stem is nitrided, which has good corrosion resistance and friction resistance. The packing is made of PTFE material, which has reliable sealing, flexible operation and small opening and closing torque.
4. Flange high temperature gate valve can choose various piping flange standards and flange sealing surface types, and can also choose various driving methods such as manual, worm gear transmission, electric, pneumatic, hydraulic, etc. to meet the different needs of users.
Main Parameters:
| Nominal Pressure |
PN1.6～16.0Mpa |
| Working Temperature |
-29～550℃ |
| Applicable Media |
Water, Oil, Steam, Acidic Media, etc. |
| operation Modes |
Manual, Gear Transmission, Electric, Pneumatic. |
| Application |
Cut off or connect the medium on pipelines in various working conditions such as petroleum, chemical, pharmaceutical, chemical fertilizer, and electric power industries. |
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