PZ73H- Welded large-diameter knife gate valve with cover,Welded large-diameter knife gate valve with cover

PZ73H- Welded large-diameter knife gate valve with cover is suitable for difficult-to-control fluids such as slurry, powder and granular materials, and fibers, and is applied in industries such as papermaking, petrochemicals, mining, drainage, and food. The opening and closing part of the knife gate valve is the gate plate. The movement direction of the gate plate is perpendicular to the fluid direction. The gate valve can only be fully open and fully closed, and cannot be used for regulation and throttling.

The gate has two sealing surfaces. The two sealing surfaces of the commonly used pattern gate valve form a wedge, and the wedge Angle varies with the valve parameters, usually 50. The gate of the wedge-type knife gate valve can be made as a whole, which is called a rigid gate. It can also be made into a gate plate that can undergo slight deformation to improve its processability and compensate for the deviation of the sealing surface Angle during the processing. This type of gate plate is called an elastic gate plate.

When the knife gate valve is closed, the sealing surface can be sealed only by the pressure of the medium, that is, the sealing surface of the gate is pressed against the valve seat on the other side by the pressure of the medium to ensure the sealing of the sealing surface. This is self-sealing. Most knife gate valves adopt forced sealing, that is, when the valve is closed, an external force is relied upon to forcibly press the gate against the valve seat to ensure the sealing performance of the sealing surface.

PZ73H- Welded large-diameter knife gate valve with cover is suitable for difficult-to-control fluids such as slurry, powder and granular materials, and fibers, and is applied in industries such as papermaking, petrochemicals, mining, drainage, and food. The opening and closing part of the knife gate valve is the gate plate. The movement direction of the gate plate is perpendicular to the fluid direction. The gate valve can only be fully open and fully closed, and cannot be used for regulation and throttling.

Packing of Standard Packing: 

Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 470 gallon liquid totes Special package is available on request. E FORUs’  is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition.