High pressure rod sealing unit for fluid pressure gauges

Details High pressure rod sealing unit for fluid pressure gauges High pressure rod sealing unit for fluid pressure gauges

F - Mech Eng,Light,Heat,Weapons

16

J

73/129, 277/27,

F16J 15/02 (2006.01) F16L 55/07 (2006.01)

Patent

CA 1322379

HIGH PRESSURE ROD SEALING UNIT FOR FLUID PRESSURE GAUGES -DAN VINH TRAN AND AMBROSE SHIU KI CHUN- ABSTRACT It is a common problem to devices which are used for segregating the working fluids, such for example as the drilling mud fluid using in drilling rig, from the pressure gauges, that the highly polished cylindrical surfaces for piston sealing are damaged by the solids which are carried by the working fluid. In this invention, a rod sealing mechanism is used to eliminate the above problem. In addition, the spare part which has to be replaced, if necessary, is far more economical, that is, to replace the rod itself instead of the internally-polished cylinder.

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