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A plastic ball valve 2011-12-28
Concerning improvements in a plastic ball valve, the applicant of the present patent application formerly applied for a utility model registration on a construction of the plastic ball valve comprisin
Ball valve made of stamped plate 2011-12-27
Ball valves are known which substantially comprise a valve body, wherein a seating has been provided for a ball having a diametrical cylindrical passage, the ball being rotatable between an open posit
Conventional ball valves 2011-12-26
However, conventional ball valves are obtained by machining cast pieces, or by machining stainless steel blocks. In either case, the machining processes require skilled labor and substantial time peri
A ball valve chamber with an entrance and exit 2011-12-23
The present invention is also a ball valve in which a valve chamber with an entrance and exit communicating with each other in a casing is formed, a valve ball with a circulation hole is provided in t
A valve ball with a circulation hole 2011-12-22
The present invention is also a ball valve in which a valve chamber with an entrance and exit communicating with each other in a casing is formed, a valve ball with a circulation hole is provided in t
A valve ball with a circulation hole 2011-12-21
The present invention is also a ball valve in which a valve chamber with an entrance and exit communicating with each other in a casing is formed, a valve ball with a circulation hole is provided in t
A valve ball with a circulation hole 2011-12-20
The present invention is a ball valve in which a valve chamber with an entrance and exit communicating with each other in a casing is formed, a valve ball with a circulation hole is provided in the va
Ball valve provides improved sealing 2011-12-19
Described herein is a ball valve which provides improved sealing. The ball valve has a ball and a dual ball seat arrangement, such that the ball seat arrangement provides two points of sealing against
