Professional Industrial Valves Manufacturer

Seal principle of oil seal type cone plug valves

by:Mech     2020-08-11
Oil seal type cone plug valve, the valve seal on the plug and body between sealant to achieve. Sealant is bolted or injection gun plug rod inside the check valve into the sealing face of the plug and body. On the sealing face of the plug and body, a storage tank sealing quality. Therefore, when the Industrial Valves is in use, can pass the check valve, tank to inject additional sealant, effectively make up for the inadequacy of the seal. If the prestressing force of the valve is not enough, then injecting sealants are also cannot guarantee seal, tighten bolts pressure filler to increase pre-tightening force, to ensure the seal. Also, the valve plug and body sealing surface of the surface roughness value is smaller, its geometry precision and conical taper of the plug and body to be accurate, to guarantee the pre-tightening force with smaller can ensure the seal, and plug in the rotation of the body can freely. Because of the sealing surface in full and to be protected and not in contact with the liquid medium, at the same time more easily damage the sealing surface of repair, so lubrication plug valve is particularly suited to abrasive medium. Lubricated plug valve should not be used for throttling, however, this is because the throttle when from revealing the hedge sealants seal face, so that every time the valve is closed, all want to reply the body sealing. This kind of Industrial Valves is the most suitable for oil and gas field branch pipe, because the pipeline pigging: no, but in the medium of oil or gas field and sand and water, with the most suitable for the Industrial Valves. In this paper, the keyword search: more technical articles valve product supply information
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