What are the characteristics and advantages of fixed ball valve?
May 20 09:02:34, 2021
Fixed ball valve features and advantages: First, the fixed ball valve features: 1, double blocking and emission features: Fixed ball valve spring preload floating seat, regardless of the valve is fully open or fully closed state, the valve seat on the downstream side The fluid is blocked and the body cavity retentate is drained through the drain valve. 2, automatic pressure relief function: the valve body cavity to stay the medium temperature rise caused abnormal boost, without going through the safety valve, and the valve seat function can automatically pressure relief, which to ensure the safety of the valve in the delivery of liquid medium Sex is very important. 3, fire safety structure: the valve has a fire safety function, its design, manufacture are to follow API607 and API6FA specifications. Second, the advantages of fixed ball valve: 1, emergency sealing fat seal Ambulance: due to foreign body or fire caused by the valve seat seal accidental failure, the grease valve provides a quick connection with the grease gun, the import pump quickly and easily sealant Into the valve seat seal to ease leakage. 2, reliable stem seal and low operating torque: In addition to setting the standard seal ring, the packing gland is also set on the "O" ring, double seal to ensure the reliability of the stem seal; additional graphite packing and Seal grease injection minimizes valve stem leakage after a fire. Stem plain bearings and thrust bearings make the valve easy to operate. 3, the whole diameter or reduced diameter: According to the need to use full diameter or reduced diameter structure. Full-diameter valve flow diameter and pipeline diameter, easy to clean the pipeline. 4, the stem can be lengthened: According to the needs of installation or operation, lengthen the valve stem. Extra-long ball valve, especially for urban gas and other places need to be laid buried pipelines. Stem lengthened according to customer needs to determine. 5, flexible operation: The use of a small friction coefficient and good self-lubricating valve seat and stem bearings, greatly reducing the operating torque of the valve. Therefore, it is possible to operate the valve flexibly and freely for a long period of time even in the absence of sealing grease. More Search Keywords: Ball Valve
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