Pneumatic Hard Seal Butterfly Valve

The pneumatic hard seal butterfly valve produced by our Tanggu Shengshi Huagong is a high-performance industrial valve driven by compressed air, with a hard-seal structure and flange connection. It is widely used in harsh working conditions in industries such as petrochemicals, electric power, metallurgy, and coal chemical industry. The valve uses compressed air as the power source and drives the butterfly plate to rotate through the pneumatic actuator to realize the opening, closing, and flow regulation functions of the valve.

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Product Description

The hard seal structure of our pneumatic hard seal butterfly valve makes it resistant to high temperature, high pressure, wear and corrosion, and can operate stably in pipeline systems containing complex media such as particles, crystals, high temperature and high pressure; the flange connection method provides a firm and reliable connection to ensure that the valve and the pipeline are tightly combined to prevent leakage.

Shengshi Huagong's pneumatic hard seal flange butterfly valve has become a key equipment in the field of industrial pipeline fluid control with its efficient automatic control, excellent sealing performance and strong adaptability to working conditions.

Technical Parameters

Project	Parameter Range
Nominal Diameter	DN50 - DN1200
Nominal Pressure	PN16 - PN100
Applicable temperature	-20℃ - 650℃ (depending on the material and sealing form)
Applicable medium	High temperature steam, high temperature flue gas, petroleum, chemical raw materials, gas, medium containing particles, etc.
Valve body material	Cast steel, stainless steel, alloy steel, etc.
Butterfly plate material	Matching with valve body, or using special alloy materials, surface surfacing hard alloy
Sealing form	Metal to metal hard seal
Connection method	Flange connection
Driving method	Pneumatic (single acting, double acting)
Actuator air source pressure	0.4MPa - 0.8MPa
Control signal	4 - 20mA current signal, 0.02 - 0.1MPa air pressure signal
Standard	Comply with international and national standards such as ANSI, ISO, GB, etc.