Differential pressure control valve

Abstract

Abstract In a differential pressure control valve having a housing, which has a valve seat, having a piston rod, which is arranged displaceably in the housing and carries a valve disc which cooperates with the valve seat, having a spring-loaded diaphragm, which is connected to the piston rod and is subjected on the valve seat side to the return pressure via a return pulse line, and is subjected on the side averted from the valve seat to the forward pressure via a forward pulse line, for the purpose of simplifying the construction the piston rod has an attachment for protecting the pulse line on the return side against becoming blocked and for reducing the installation expenditure. In this arrangement, the return pulse line is arranged inside the attachment and the piston rod. Furthermore, the housing has a pocket into which the attachment plunges. <IMAGE>

Inventors

• 👤 Milan Medvescek

Bibliographic Details