Functional description of the Herschel liquid helium valve.

Valve Flow Elements

The valve flow elements are used to start or stop the helium flow, and comprise:

11 Valve poppet with stainless steel ball and ball
retainer and bushes.
12   Valve seat assembly with polymeric calotte seal
and cup springs.
13   Upstream and downstream filter.
14   Downstream housing.

Actuator Assembly
Position indicator
Functional Description
Views of the valve
Back to the valve index page