Function

DOME LOADED PRESSURE REGULATORS – THE GAS CUSHION MAKES THE DIFFERENCE

Dome-loaded pressure regulators are operated with gas pressure. Unlike spring-loaded pressure controllers, the opening force of the valve required for pressure reduction is generated by the pressure of a so-called pilot gas and not by a spring. In the dome-loaded pressure regulator sets from WITT, the gas to be regulated is itself used as the pilot gas („own-medium controlled“).
The gas to be regulated is supplied to the dome where it reaches the valve seat. The pilot gas is controlled via a built-in pilot gas regulator and led into the pressure chamber. Here, it acts on a diaphragm whose stroke movement is transferred to the valve seat via a diaphragm plate. So the valve gets opened or closed via the pressure of the pilot gas and the relevant stroke movement of the diaphragm, dependent upon the chosen operating pressure, and the flow required. The excess pilot gas is routed to the outlet pressure side via an integrated non-return valve. Thus, WITT dome pressure regulator sets are closed systems and allow the outlet pressure to be adjusted whilst in service.

Probably the best dome-loaded pressure regulators in the world

With a special design, complex stream simulations and filed detailed solutions, WITT has optimised the functioning of dome-loaded pressure regulators:

CLOSED CONTROL SYSTEM

PILOT PRESSURE REGULATOR

PILOT CONTROL TUBE

BALANCED SEAT DESIGN

DIAPHRAGM

Downloads

Practical examples dome-loaded pressure regulators PDF
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Data sheets dome-loaded pressure regulators PDF
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Brochure dome-loaded pressure regulators PDF

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