Electric flange gate valves are industrial valves controlled by an electric actuator, widely used in petroleum, chemical, and power industries. Driven by an electric actuator, they are installed in pipeline systems via flange connections. The raising and lowering of the gate valve controls the flow of media (liquids, gases, solid particles, slurries, etc.) or regulates their flow rate. They are widely used in petrochemical, water treatment, power, and municipal engineering industries. Their core advantages lie in "remote automated control," "suitability for large-diameter and high-pressure applications," and "stable sealing performance," making them key equipment for achieving automated control of media transport in industrial pipeline systems.
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Electric Flange Gate Valve Technical parameters
Size Range: DN50-DN1200
Pressure Range: PN10-PN100 (150LB-1500LB)
End Connection: Flanged
Material: Carbon Steel, Stainless Steel, Alloy Steel
Seals: Metal Seated
Valve Design: Motorized, Rising Stem Gate Valve
Face to Face: ANSI B16.10, ISO 5752
End Connection: ANSI B16.5, ISO 7005
Testing & Inspection: API 598, ISO 5208
Suitable Medium: Oil, Gas, Water, Steam, Chemicals
Electric Flange Gate Valve Features
(1) The valve adopts a pressure self-tightening seal or a valve body and cover gasket sealing structure, ensuring safe and reliable operation.
(2) The valve disc adopts a double gate structure with a universal joint in the middle, which can automatically adjust the fit between the valve disc and the valve seat sealing surface to ensure valve sealing. This structure also facilitates maintenance and offers good valve disc interchangeability.
(3) The electric actuator is equipped with a torque control mechanism, a local operation mechanism, and a manual/electric switching mechanism. In addition to local operation, it can also be operated remotely, controlled by PLC, and intelligently controlled with 4~20mA current input/output.
(4) The manual valve is opened by a manual mechanism or a handwheel upon impact, reducing the valve operating force.
(5) The valve can be installed in any position on the pipeline, and carbon steel or alloy steel valves can be selected according to the medium and its temperature.
Electric Flange Gate Valve Working Principle
The working principle of an electric flange gate valve is based on its basic structure and drive mechanism:
Opening Process:
To open the valve, rotate the handwheel, handle, or use an electric or pneumatic actuator to move the valve stem upwards, driving the gate upwards.
In the fully open state, the gate is completely disengaged from the valve body passage, allowing fluid to flow smoothly through the valve.
Closing Process:
To close the valve, rotate the handwheel, handle, or use an electric or pneumatic actuator in the opposite direction to move the valve stem downwards, driving the gate downwards.
When closed, the gate fits tightly against the valve seat, preventing fluid flow and ensuring system tightness.
Sealing Performance:
The gate fits tightly against the valve seat when closed, ensuring excellent sealing performance.
The resilient valve seat automatically compensates for wear during closure, further enhancing the sealing effect.
Electric Flange Gate Valve Applications
Electric flange gate valves are widely used in the following fields:
Oil and Gas Industry:
Used in pipeline systems for transporting media such as crude oil and natural gas, especially in applications requiring high-performance sealing and high-pressure resistance.
Chemical Industry:
Ensuring the safe operation and high efficiency of pipeline systems used to transport chemicals.
Power Industry:
Used for regulating and controlling fluids such as cooling water and steam in power plants to ensure stable system operation.
Metallurgical Industry:
Used for the transportation and control of fluids such as blast furnace gas and oxygen, meeting the specific needs of the metallurgical industry.
Water treatment industry:
Used for fluid control in waterworks, sewage treatment plants, and other similar facilities to ensure water quality meets standards.
Municipal engineering:
Used for fluid control in urban water supply and drainage systems to ensure the normal operation of municipal facilities.
Electric Flange Gate Valve factory
