The advantages and characteristics of fixed pneumatic ball valve is introduced

sphere with a fixed axis of the pneumatic ball valve, called fixed pneumatic ball valve. Fixed pneumatic ball valve is mainly used for high pressure large diameter. Differ according to the installation of the pneumatic seat sealing, fixed pneumatic ball valve can have two kinds of structure: sphere before sealing pneumatic valve seat, after the ball seal pneumatic valve seat. A pneumatic, fixed ball valve features:, double block and discharge function: fixed pneumatic ball valve USES the floating pneumatic seat spring preload, regardless of the pneumatic valve in the fully open or close state, upstream and downstream side of the pneumatic valve seat make fluid blocking, pneumatic valve body lumen retentate by pneumatic valve discharge. , automatic pressure release: pneumatic valve body cavity for medium temperature increase caused by the abnormal pressure, do not need through the security pneumatic valve, pneumatic seat function is only can automatic pressure release, the pneumatic valve in conveying liquid medium to ensure the safety of sex is very important. Pneumatic valves, fire safety structure: has function of fire safety, its design, manufacture all follow API and API FA specification requirements. : the advantages of fixed pneumatic ball valve, sealing emergency greasing rescue: pneumatic seat tightness due to medium foreign body or fire accident failure, on the pneumatic valve provides a connection to a quick note grease gun, convenient and quick to import pump sealing grease injection to the pneumatic valve seat seal department, reduce leakage. Pneumatic valve stem seal, reliable and low operating torque: in addition to setting the standard of sealing ring, the packing gland is also equipped with type O sealing ring, double seal to ensure the reliability of the pneumatic valve stem seal; Adding graphite packing and sealing grease injection make pneumatic valve stem leakage after the fire to a minimum. Pneumatic valve rod sliding bearing and thrust bearing pneumatic valve operation. , full size or reducing: can choose according to need full size or reducing structure. All sizes of pneumatic valve flow aperture is consistent with the pipeline diameter, facilitate pipeline cleaning. , pneumatic valve stem can be lengthened: according to the needs of the installation or operation, can be extended to pneumatic valve pneumatic valve stem. Extension rod pneumatic ball valve, especially suitable for the occasion of city gas and so on need to be buried laying pipelines. Extended pneumatic valve stem size according to customers need to be addressed. , flexible operation, using a small friction coefficient and good self-lubrication of pneumatic seat and pneumatic valve rod bearing, greatly reduced the pneumatic valve operating torque. So even in the case of the provided no sealing grease, also can long period mobility of pneumatic valve operation.