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A spherical ball mounted 2011-12-16
A valve housing having a flow passage therethrough; a spherical ball mounted in said valve housing for movement between an open position and a closed position; tubular caps having connected means for
An upper ball 2011-12-15
A housing having an upper housing and a lower housing, said lower housing having an inlet and an outlet;
A spherical valve element 2011-12-14
Ball valves are commonly used for opening and closing fluid communication in a flow line and generally include a spherical valve element. The opening and closing of the spherical valve element may be
Floating ball 2011-12-13
Satisfactory performance of any fluid piping system depends to a large extent upon efficient valve operation in controlling and regulating the flow of the fluids through the piping in which the valves
A valve body defining an inlet and an outlet 2011-12-12
A ball supported in the valve body between the inlet and the outlet, and having an open position to conduct a fluid from the inlet to the outlet, and a closed position substantially preventing the flo
Journalled ball valves 2011-12-09
The present invention relates to a ball valve formed of a housing with inlet and outlet openings for a medium and a ball having a bore and floatingly supported in two rings in the housing. The ball in
Present a ball valve 2011-12-07
The primary objective of the present invention is to provide a ball valve, which may prevent the fluid received in the valve seat. The secondary objective of the present invention is to provide a ball
An improved ball valve structure 2011-12-06
In a lower kelly valve positioned beneath the kelly of a drill string connected to surface drilling equipment and mounted between an internally threaded lower tubular member defining a downstream flow
