This article mainly tells about the characteristics and advantages of fixed pneumatic ball valves.
Characteristics of fixed pneumatic ball valves:
1. Fire safety structures: all valves own the function of fire safety. And the design and manufacturing comply with API 607 and API 6FA specifications.
2. The double block and discharge function: the pneumatic fixed ball valve adopts spring preloading floating valve seats. When the valve is fully open or fully closed, the upstream and downstream valve seats block the fluid, and the residual in the valve body cavity is discharged through the discharge valve.
3. Automatic pressure relief function: when the abnormal pressure rises caused by the temperature rise of the medium in the valve body cavity, it is not necessary to pass through the safety valve. The pressure can be relieved automatically by the valve seat, which is very important to ensure the safety of the valve when the liquid medium is conveyed.
Advantages of fixed pneumatic ball valves
1. Fire safety structure: The design and manufacture comply with API 607 and API 6FA specifications.
2. The valve stem can be lengthened: the valve stem can be lengthened according to the needs of installation or operation. Lengthening the rod of
ball valves is especially suitable for city gas and other occasions where the buried pipeline is needed. The size of lengthened valve stems is determined according to customer's requirements.
3. Sealing emergency grease injection rescue: due to the unexpected failure of the valve seat seal caused by foreign matters in the medium or fire, there will be a quick connection with the grease injection. The sealing grease can be injected into the sealing part of the valve seat conveniently and quickly to alleviate leakage.
4. Flexible operation: the valve seat and stem bearing with small friction coefficient and good self-lubricating property are used to greatly reduce the operating torque of the ball valve. Therefore, the ball valve can be operated flexibly for a long time even without the sealing grease.
5. Full bore or reduced bore: the full bore or reduced bore structure can be selected as required. The flow aperture of full bore valves is consistent with the inner diameter of pipelines, which is convenient for pipeline cleaning.
