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The use of check valves in the oil industry 2012-01-12
The most common type of check valves employ a ball valve element for seating within a valve body valve to shut off flow
A check valve suited for medical applications 2012-01-11
Check valves may be used to selectively fluidly connect a first hose with a second hose. More specifically, check valves
Check valves use for pressurized gas 2012-01-09
Check valves are in widespread use for permitting pressurized gas to flow through a passage in one direction and prevent
Direction control valves 2012-01-06
The valving element or valve member used in check valves may be of various types, including ball, poppet, disc, etc. Mor
Swing-type check valves 2012-01-05
Swing-type check valves have been known for many years and are widely used in many industrial processes for preventing t
Check valves with disc-type closure elements 2012-01-04
The field of art to which the present invention pertains includes check valves with disc-type closure elements pivotally
Ball check valve 2011-12-31
An improved ball check valve for use in positive displacement subsurface pumps used in the petroleum industry for pumpin
Check valve basic of parts 2011-12-30
A check valve having a body with an inlet, an outlet, a valve seat surrounding communication between said inlet and said
