Huaying pneumatic plug valve

Huaying pneumatic plug valveMainly used for warehouse top, bottom, import and export in industries such as building materials, metallurgy, mining, electricity, chemical, glass, light industry, and grain. It is an ideal device for controlling large flow changes, frequent startup, and rapid shutdown.

Technical standards:

1. The shell test and sealing test media for plug-in valves are water (including preservatives), kerosene, or other suitable liquids with a viscosity not greater than water.

2. The sealing pair is a non-metallic sealed plug valve, and the sealing shell test and requirements are in accordance with GB/T13927-92 Class D.

3. The sealing pair is a metal sealed plug valve. For those with sealing performance requirements, the leakage rate of the sealing test is calculated as 1 × DNmm/s. For those without sealing performance requirements, this test is not conducted.

4. The plug-in valve driven by electric, hydraulic, and pneumatic devices should be closed three times after the position is set, and the shell and sealing tests should be conducted according to the requirements of 1 and 3.

5. The cleanliness requirements for plug-in valves shall comply with the provisions of JB/T7748.

6. Static pressure life test.

7. The number of static pressure life tests for plug-in valves shall be in accordance with regulations, while other technologies shall comply with the provisions of JB/Z 234

Huaying pneumatic plug valveFunctional characteristics: It is a main control equipment for the flow or conveying volume of powder, crystalline granules, granular materials, and small pieces of materials, widely used in industries such as metallurgy, mining, building materials, grain, chemical industry to control flow changes or quickly cut off. Advantages: simple structure, flexible operation, light weight, no jamming, especially suitable for conveying and flow adjustment of various solid materials and block and lump materials with a diameter of about 50mm. Installation is not limited by angles, easy operation, and the scale can be adjusted at any time. The structural characteristics include simple structure, flexible operation, light weight, no jamming, and fast cutting. It is particularly suitable for the transportation and flow adjustment of various viscosity free solids, powders, and particles smaller than 10mm, as well as crystal particles. The installation is not limited by angle, and the operation is convenient. The opening can be adjusted at any time.

Pneumatic single and bidirectional plug valve, also known as manual knife gate valve, is a type of valve in which the gate and seat are always in close contact and sealed. Its principle is that the gate has a circular opening of the same diameter, and the opening and closing of the gate causes the circular opening on the gate to detach and match the diameter. The advantage of this valve is that the valve body has no grooves, the medium will not get stuck or blocked, and it has full diameter flow characteristics. Its sealing structure can be divided into soft sealing and hard sealing structures. Penetrating knife gate valve has the characteristics of precision construction, good processability, and compact structure. The sealing valve seat is designed with a movable structure, which has anti wear and automatic compensation functions, resulting in a longer service life. During the closing and opening process, the valve seat and gate plate move closely together, which stabilizes the opening and closing force of the valve and has the characteristics of cutting off the medium.