A DEVICE FOR USE IN A FLUID SYSTEM OR CIRCUIT FOR PERMITTING FLUID FLOW IN ONE DIRECTION UPTO A SET LIMIT AND FREE FLUID FLOW IN THE OPPOSITE DIRECTION AND A FLUID SYSTEM OR CIRCUIT HAVING THE SAME

摘要

A device for use in a fluid system or circuit for permitting fluid flow in one direction upto a set limit and free fluid flow in the opposite direction, the said device comprising a closed hollow body provided with a fluid inlet and a fluid outlet, the said fluid inlet and fluid outlet being directly opposite to each other and adapted to be connectable in the said fluid system or circuit; and a poppet provided in the said hallow body and operable normal to the plane of the said fluid inlet and fluid outlet in association with spring means in order to open and close the said fluid outlet, the said poppet being provided with a coaxial stem at one end and a coaxial guiding cum centering portion at the other end opposite to the said one end, the aid guiding cum centering portion being engaged in and slidable in the said fluid outlet and provided with a plurality of channels or slots for fluid to flow therethrough, the free or outer end of the said stem being adapted to rest against the said fluid inlet periphery and allow flow of fluid therethrough.