Three-Stage High Pressure Diaphragm Regulator

CAD Model

Related Products

GCP Gas Cylinder Pierce Fitting

The GCP series fittings are designed to allow easy connection from 3/8-24 or 1/2-20 threaded compressed gas cylinders directly to the inlet port of a Beswick multi-stage regulator such as our PRD3HP.

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PRD4HP High Pressure Regulator

Our latest high pressure regulator which is being phased in as a replacement to the PRD3HP.

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Note: The PRD3HP is not recommend for new designs as it has been superseded by the new PRD4HP.

You can find the PRD4HP on our website here: PRD4HP

Please contact a Beswick Engineering applications engineer if you have any questions about this design change.

Description: Beswick’s award winning PRD3HP is a compact three stage regulator, ideal for applications requiring accurate regulation of high pressure fluids down to very low pressures and flows.

Max Inlet Pressure Rating: The PRD3HP is a three stage regulator, capable of accurately reducing very high inlet pressures, up to 3,000 psi. It is ideal for applications where the source fluid will be coming directly from a cylinder of high pressure compressed gas.

Outlet Pressure Range: Maximum outlet range 0-40 psig. The large valve to sensing area ratio and frictionless design of Beswick’s diaphragm style regulators make them especially well suited for low pressure regulation, such as ½ psi. The three stage design allows the regulator to maintain a consistent outlet pressure despite wide swings in the inlet/source pressure.

Approximate Weight: 76g in brass and stainless steel (303 & 316). Weight will vary slightly, depending on configuration.  Selecting the 2 inch. high resolution cap option adds approximately 50-60g to total weight.

Operating Temperature: The PRD3HP uses an internal Delrin seal.  Delrin is not rated for use at elevated temperatures.  If you are planning on using the PRD3HP at elevated temperatures, please contact the factory for additional information and options.

Porting: ¼-28 internal threaded inlet port, 10-32 internal threaded outlet port.
This is a Non-Relieving regulator.

Flow Curves