Patent ID: 7278838

Claim:
An inlet check valve mounted with a first fastener to an end surface of a projection extending from one end of a valve body, the valve body having an inlet passage and an outlet passage intersecting the end surface of the projection, the valve body being mounted to a high pressure pump for conducting a low pressure liquid via the inlet passage to the high pressure pump and conducting a high pressure liquid via the outlet passage from the high pressure pump, the inlet check valve comprising: an inlet seat adapted to be sealingly located on, and removable from, the end surface of the projection, the inlet seat comprising first and second through-holes adapted to be disposed adjacent the inlet passage and the outlet passage, respectively, a third through-hole adapted to receive the first fastener, and a first surface adapted to be disposed against the end surface of the projection and forming a liquid tight seal therewith; a valve positionable over the first through-hole of the inlet seat to define a closed valve position blocking a flow of liquid past the valve and through the inlet passage; and an inlet guide comprising first and second through-holes alignable with the respective first and second through-holes of the inlet seat, a third through-hole positionable adjacent the third through-hole of the inlet seat, and adapted to receive the first fastener, and a cavity aligned with the first through-hole of the inlet seat for receiving and maintaining the valve between the cavity and the first through-hole of the inlet seat, the valve being positionable in the cavity and away from the closed valve position to define an open valve position permitting the flow of liquid past the valve and through the inlet passage.