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What are the advantages and characteristics of imported pneumatic double-plate gate valves?

In recent years, with the continuous development of China's private economy, pneumatic double gate valves have been widely used, especially in the industrial field. Today, we will learn about the characteristics and advantages of pneumatic double gate valves.

Pneumatic double gate valve features:
1. Double blocking and discharging function: The pneumatic double gate valve adopts spring preloading floating valve seat. When the valve is in the fully open or fully closed state, the valve seat on the upstream and downstream sides blocks the fluid, and the pneumatic double gate valve body The intermediate cavity retentate is drained through the discharge valve.
2, automatic pressure relief function: pneumatic double gate valve body cavity temperature rises and causes abnormal pressure rise, no need to pass the safety valve, but only the valve seat function can automatically release pressure, which guarantees the pneumatic double gate The safety of the gate valve when transporting liquid media is very important.
3, fire safety structure: Pneumatic double gate valve has fire safety function, its design, manufacture are in accordance with API607 and API6FA specifications.

Advantages of pneumatic double gate valve:
1. Sealed emergency grease injection: due to foreign matter in the medium or fire, the valve seal of the pneumatic double gate valve is unexpectedly invalid. The grease injection valve provides a quick connection with the grease gun to inject the sealing grease into the valve seat conveniently and quickly. Sealed parts to relieve leakage.
2. Reliable pneumatic double gate valve stem seal and low operating torque: In addition to the standard sealing ring, the “O” seal is also installed on the packing gland. The double seal ensures the reliability of the stem seal. Additional graphite packing and sealant injection minimizes valve stem leakage of the pneumatic double gate valve after a fire. The stem sliding bearing and the thrust bearing make the valve easy to operate.
3, full diameter or reduced diameter: can be selected according to the need for full diameter or reduced diameter structure. The flow aperture of the full-diameter pneumatic double gate valve is the same as the inner diameter of the pipeline, which is convenient for pipeline cleaning.
4. The valve stem of the pneumatic double gate valve can be lengthened: according to the needs of installation or operation, the valve stem of the pneumatic double gate valve can be lengthened. Pneumatic double gate valve is especially suitable for occasions where underground gas pipelines need to be buried. The length of the stem is determined according to customer needs.
5. Flexible operation: Pneumatic double gate valve adopts valve seat and stem bearing with small friction coefficient and good self-lubricating, which greatly reduces the operating torque of the valve. Therefore, even in the case where the sealing grease is not provided, the pneumatic double gate valve can be operated flexibly and freely for a long period of time.

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