Pressure stabiliser for fluid pipe - has housing contg. diaphragm which is connected to valve stem

摘要

The pressure stabiliser for pipes has upper and lower chambers connected by screws and divided internally by an elastic membrane. The upper chamber is joined to a reservoir through a tube fitted with a non-return valve. The lower chamber has an inlet and an outlet separated by a valve, the stem of which is fixed to the elastic membrane. Pressure changes in the service pipe affect the seating of the valve in the lower chamber. Normally the valve is closed but when pressure falls it opens. When pressure is restored the valve returns only slowly to the closed position thus checking rapid surges of pressure.