F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
F16K 5/06 (2006.01) F16K 37/00 (2006.01)
Patent
CA 2410318
A half ball valve includes a body including cavity having an assembly opening, a stem opening formed at a side of the body opposite to the assembly opening to connect the cavity and the outside, and a first connection hole inclined with respect to an axis of the stem opening. A valve element is accommodated in the cavity of the body through the assembly opening to be capable of rotating to switch between an open position at which the first connection hole is open and a close position at which the first connection hole is blocked. A passage is formed in the valve element inclined with respect to an axis of the stem opening and is connected to the first connection hole at the open position. A stem connects a control lever outside the body and the valve element along the stem opening. A body cap having a second connection hole connected to the passage of the valve element is coupled to the body to cover the cavity at the assembly opening side. A packing is interposed between an outer surface of the valve element and an inner wall of the body. Thus, the size of the valve element can be reduced and, when the passage in the pipeline is blocked, the fluid flowing in the pipeline is not confined in the passage of the valve element. Also, not only is dead space not formed but also the gap between the valve element and the body is completely sealed by the space filler, so that the fluid flowing through the pipeline is prevented from remaining in the gap and being deposited therein. Furthermore, the full bore concept can be realized in which no difference exists between the amount of the fluid that is coming in through the inlet and the amount of the fluid that is discharged through the outlet in the ball valve installed on the pipeline.
Gowling Lafleur Henderson Llp
Oh Seung-Jun
LandOfFree
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