Pressure relief valve

摘要

A proportional pressure release valve comprising a valve body (1) incorporating a valve seat (12), a valve closure member (13) mounted in the valve body (1) and co-operable with the valve seat (12) to control flow of fluid through the valve from an inlet pressure port (P) to an outlet tank port (T), and electro-magnetic control means (25) having a push pin (26) operable to move, via resilient means (29), the valve closure member (13) in dependence upon the magnitude of a control current applied thereto, characterised in that the valve further comprises damper means (34,39) provided between the push pin (26) and the valve closure member.