Patent ID: 8985145
Filing Date: 2015-03-24
Classification: F16K,Y10T

Abstract:
1. A combination flow control valve and reverse flow check valve comprising: a housing defining a central, fluid conveying channel therethrough, wherein the channel extends longitudinally along an axis from a desired upstream opening end to a desired downstream outlet end, wherein said housing includes a circumferentially-extending shoulder extending radially inwardly in the channel between an shiftable valve element and an check element, the shoulder defining a substantially circular opening presenting a seat for the check element, the seat having a first diameter; the shiftable valve element positioned within the housing for controlling the flow of liquid through the channel; the check element positioned within the housing in a downstream position relative to the shiftable valve element in regard to a desired direction of flow for inhibiting backflow of liquid through the channel and past the shiftable valve element; and a check element retainer located proximate the desired downstream end of the housing and positioned in the channel for maintaining the check element in the housing.