Pneumatic gate valve has good sealing and gate valve selection

Pneumatic gate valve is also called manual knife gate valve. Knife gate valve is a valve in which the gate plate and the valve seat are always in close contact and sealed. The principle is that there is a round port with a diameter on the gate plate. The gate opens through the gate plate. Closing makes the circular opening on the gate plate completely separate from and coincide with the diameter. The advantage of this valve is that there are no grooves in the diameter of the valve body, the medium will not be blocked and blocked, and it has full-through flow characteristics. Its sealing structure can be divided into soft sealing and hard sealing structures. The penetrating knife gate valve has the characteristics of precision structure, good craftsmanship and compact structure. The sealing valve seat is a movable structure design with anti-wear and automatic compensation functions, so it has a longer life.
Square pneumatic
Slide valve
The shell test and sealing test medium are water (including preservatives), kerosene or other suitable liquids with a viscosity no greater than water.
The sealing pair is a non-metallic sealing gate valve, and the sealing shell test and requirements are specified according to the grade.
The sealing pair is a metal-sealed gate valve. For those with sealing performance requirements, the leakage amount of the sealing test is calculated in Dmm/. For those without sealing performance requirements, this test will not be performed.
For gate valves driven by electric, hydraulic or pneumatic devices, after the closing position is set, the shell and sealing test shall be carried out according to the closing time and requirements.
The cleanliness requirements of gate valves are in accordance with the regulations.
Static pressure life test.
The number of static pressure life tests of the gate valve shall be in accordance with the regulations, and other technologies shall comply with the regulations
Telephone
Mobile phone