Ball valve ball is floating, under medium pressure, the ball can produce a certain displacement and squeeze the sealing surface at the outlet end, to ensure that the outlet end of the seal. Floating ball valve structure is simple, good sealing, but the ball to withstand the load of the working medium are all passed to the export seal, so to consider whether the seal material can withstand the working load of the ball medium, when subjected to high pressure shock , The sphere may be offset. This structure, generally used in low pressure ball valve.
Galvanized Steel Wire Co., Ltd. , http://www.nswiremesh.com