Importance

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Abstract

Disclosed is an improved check valve for in-line mounting with fluid conduits under pressure subject to directional flow control of the type comprising two components of simple configuration, the improvement including a tee shaped movable short valving pin with a seal secured adjacent pin head over a shank thereof inserted inside a small divider bore portion central to a housing bore with larger diameter end sections and adaptable to fluid flow control therebetween from a first direction by closing the fluid flow passages when the seal is forced against a first side of the divider wall inside a first bore section rendering valve bubble-tight shut until the directions of fluid changes shifting the pin with the seal axially away from the divider as far as the tee permits before abutting a second side of the divider wall inside a second bore section so as to render valve fully open, and vice-versa, including novel means for pin assembly and holding physically inside the housing bore by an elastomeric seal inserted over the pin shank through the opening of the first bore section while the tee remains inside the second bore section during the initial valve assembly.

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First Claim