Nominal Diameter: DN50mm ~ DN1000mm (2" ~ 40")

Nominal Pressure: PN1.0~4.0 MPa (150~300 Lbs)

Operating Temperature: ≤ 200℃

Material: Carbon Steel, Stainless Steel, etc.

Medium: Dry ash, coal dust, and other solid particles

Widespread Applications: Power plants, mines, cement industry, flour mills, and conveyance of other abrasive materials or fine solid particles

Pneumatic ceramic double gate valves, also known as ceramic parallel double gate valves, dry ash valves, discharge valves, feed valves, release valves, and pneumatic valves, are a type of ceramic gate valve. Therefore, their structural and operating principles are consistent with those of ceramic gate valves, with the valve stem driving the lifting and lowering movement of the lifting member (gate plate) and the sealing surface of the valve seat. This allows for the opening or closing of the fluid passage. When the valve is partially opened, vortices are formed on the back of the gate plate, which can easily cause erosion and vibration of the gate plate, as well as damage to the sealing surface of the valve seat, making repairs difficult. They are typically used in situations where frequent opening and closing is not required and where the gate plate needs to remain fully open or fully closed. By using ceramic guide strips located inside the valve cover and an assist spring within the three-way valve core, the left and right gate plates can be effectively kept tightly in contact with the ceramic guide strips during movement, preventing any leakage and ensuring the normal operation of the valve body. This novel structure is simple and easy to install and use.