Gas electric butterfly valve

瓦斯电动蝶阀 is a special valve designed specifically for high explosive and highly corrosive media such as coal mine gas, mainly used in coal mine gas extraction systems, pump rooms, and power plants.
Its core features and functions are as follows:


‌核心特性‌Core Features
Explosion proof safety design
Adopting a mining explosion-proof electric actuator, it has passed the coal safety certification (MA mark) and meets the explosion-proof requirements of underground gas environment.
Equipped with anti-static structure to prevent sparks generated by friction between the valve plate and the seal, while the valve body is grounded to eliminate static electricity accumulation.
Corrosion resistant material
The valve body is often made of ductile iron, cast steel or stainless steel, and the sealing surface is covered with corrosion-resistant materials such as nitrile rubber and polytetrafluoroethylene, which are suitable for strong gas corrosion.
Intelligent control function
Support flashlight switching mechanism, which can be manually operated when power is off; Some models integrate 485 communication interfaces to achieve remote control and DCS system integration.
Bidirectional sealing structure
The soft seal butterfly plate design ensures bidirectional pressure sealing, low flow resistance, and zero leakage, suitable for pipelines that frequently open and close.
Key application scenarios
Gas extraction pipeline
Used for gas transmission pipelines with diameters ranging from DN50 to DN1600, regulating flow or emergency shut-off, such as the WSD941X-10Q series.
Gas pump room and power generation system
Install at the inlet and outlet of the pump room (such as DN250/DN500 models) to ensure stable gas transportation and pressure control.
High gas mine safety system
Cooperate with explosion-proof control boxes and deploy them in underground ventilation and drainage systems to prevent explosion risks caused by gas accumulation.
Technical parameters and selection reference
Typical parameter values description
The nominal pressure is PN1.0/1.6/2.5MPa, and the high-pressure model can reach PN4.0MPa
Temperature range -20 ℃~150 ℃ High temperature model can withstand 565 ℃ (hard seal)
Drive mode electric (AC380V/660V/1140V) explosion-proof actuator with high torque, suitable for frequent start stop
Connection form flange/clamp such as WSD94F-16Q series
如WSD94F-16Q系列‌

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‌‌Typical models and manufacturers of mining explosion-proof models: WSD941X-16Q (DN600), MKD941X-10Q (DN250), etc., with a unit price of approximately ¥ 18000- ¥ 27850.
Intelligent integration: WSD941X-10Q (with communication function), WSD941X-16Q (flashlight switching).
Main manufacturers: Provide coal safety certification products and customized services.
The gas electric butterfly valve has solved the safety hazards of traditional valves in gas environments through structural optimization and material innovation, and has become one of the core equipment for coal mine safety production.