CHECK VALVE FOR HIGH PRESSURE SLURRY PUMP

摘要

The present invention relates to a check valve, preventing a flowing substance from flowing backward. More specifically, the check valve is used for a high pressure slurry pump compressing low-pressure fluid at high pressure to form the pressure of a back-end component. The present invention comprises: a housing (110) having an upper side opening unit (110b) and a lower side opening unit (110a); a main cap (120) inserted into the lower side opening unit (110a); a cover cap (130) inserted into the lower side opening unit (110a) and positioned on a lower side of the main cap (120); and a sub cap (140) inserted into the lower side opening unit (110a) and positioned on an upper side of the main cap (120).