Patent ID: 8464962
Filing Date: 2013-06-18
Classification: E03C,F16K,G05D

Abstract:
1. A valve for controlling the flow of a fluid therethrough, comprising: a main body having a wall defining a channel extending therethrough between an inlet port and an outlet port; a sleeve axially disposed in the main body; and a piston having a proximal end and a distal end and axially disposed in the sleeve, the piston configurable in a first position whereby the fluid is permitted to flow from the inlet port through the valve, a second position distal the first position and established by a temperature sensitive actuator whereby the fluid is restricted from flowing through the valve, and a third position distal the second position whereby the fluid is permitted to flow from the inlet port through the valve, wherein a fluid pressure at the piston proximal end and the piston distal end piston is substantially balanced when the piston is in the second position.