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

Nominal Pressure: PN 1.0~4.0 MPa (150~300 Lbs)

Operating Temperature: ≤ 200℃

Material: Carbon steel, stainless steel, etc.

Medium: dry ash, coal powder, and other solid particles

Widespread Applications: Power plants, mines, cement industry, flour mills, and other conveyance of high-wear materials such as powders 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 device (valve plate) against the seat sealing surface. This allows for the opening or closing of the fluid passage. When the valve is partially open, vortices are formed on the back of the gate plate, which can easily cause erosion and vibration of the gate plate, and also damage the seat sealing surface, making repairs difficult. They are typically used in conditions where frequent opening and closing is not required and where the gate plate needs to remain fully open or closed. By using ceramic guide strips set inside the valve cover and an assist spring within the three-way valve core, the left and right gate plates can be effectively made to move tightly along the ceramic guide strips without any leakage, ensuring the normal operation of the valve body. This design is simple and easy to install and use.