Importance

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Abstract

A valve apparatus is provided that includes a housing having proximal and distal ends and defining a passageway therethrough. An access port of the housing defines a bore configured for selective communication with the passageway. The valve apparatus includes a hollow insert which is disposed in the distal end of the passageway and includes a portion that is disposed beneath the bore defined by the access port. The housing additionally includes retention tabs on the distal end that engage corresponding openings in a fitting that is attached to the housing and includes a nipple slidingly received within the insert. A seat on the nipple contacts a flange of the insert to form a substantially leak proof connection. A substantially identical fitting engages corresponding retention tabs on the access port and is configured to slidingly receive a plunger, disposed in the bore, within a passage defined by the nipple. A sealing ring disposed in the bore around the plunger is compressed by the nipple and acts to prevent leakage past the plunger. The plunger is biased upwards out of the passageway, defined by the housing, by the resilience of the insert, so that fluid can readily flow between the proximal and distal ends of the passageway.

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First Claim