Patent ID: 8434733
Filing Date: 2013-05-07
Classification: F16K,Y10T

Abstract:
1. A valve closure member adapted to seal with a valve seat of a valve in use, wherein the valve is used in the control of pressurised air from a pressure tank, the pressure tank including a wall in which an outlet port is formed, the wall having an inner surface and an outer surface, comprising, a piston disc and a valve closure disc, the discs held coaxially together by a spindle, the spindle having a diameter that is less than a diameter of the piston disc and the valve closure disc, the piston disc having a recess extending around its peripheral edge, the piston disc further having a bleed passage running from a top surface of the piston disc to a lateral surface of the spindle; and the valve closure disc having a peripheral surface for maintaining the valve closure disc aligned with a valve seat in use wherein the valve includes: