19BV Series

The 19BV is an economic, direct spring operated, soft-seated, balanced valve incorporating balanced disc and cage guided assembly creating optimal performance in both liquid and air service where built-up or superimposed back-pressure could be an issue.

The seat at the inlet orifice and the area of the O-ring guided disc in the cage are equal. The disc/cage assembly uses a plastic bubble-tight seat at the inlet nozzle for upstream pressures and an O-ring guided disc in the cage as the balanced seal for downstream backpressure. The vented to atmosphere upper body allows the valve’s balanced disc/cage assembly to remain fully functional in superimposed back-pressure conditions having little to no effect on set pressure.

A cost savings answer to the high-end bellows valves, in a simple and reliable design.