Up-Stream Pressure Controllers and Relief Valves

We offer a range of up-stream pressure controllers and relief valves as standard. Please refer to each individual model data sheet for more detailed performance characteristics and available operating and material options.

We are able to supply most models suitable for High Purity and Oxygen service, or Stainless Steel variants for N.A.C.E. specification, but please specify this requirement within your enquiry or when placing an order.

Up-Stream Pressure Controllers


Adjustable Pressure Regulators – Series 150

A modular range of high pressure adjustable regulators incorporating interchangeable sensing and main vale options providing responsive up-stream flow control over a wide flow band.
Pressure rangers from 0 to 700Bar.
1/4″, 3/8” and 1/2” port options available in various material options.



Adjustable Pressure Regulators - series 151

Adjustable Pressure Regulators – Series 151

Miniature, simple hand adjustable regulators for controlling pressures between 0 and 17Bar. Supplied 1/4″ ports with various thread options and featuring bubble tight seal back.
Available in various material and adjuster versions.



Adjustable Pressure Controllers – Series 152

Hand adjustable range of high accuracy pressure controllers incorporating pilot signal bias if and when required. Pressure control ranges between 0 and 100Bar, and body ratings up to 300Bar.
Various port configurations between 3/8” and 1” are available, as are various material options.



Dome Loading Regulators – Series 153

A fixed dome loading or external pilot source, high accuracy, up-stream controller range able to handle high exhaust flows with minimal over-pressure characteristic and accurate, repeatable, bubble tight re-seating.
Various port configurations and sizes between 1/2″ and 2” can be specified. Material options suitable for most applications and pressure ranges up to 414Bar are available. Body rating up to 500Bar.



Pressure Relief Valves


Relief Valves – Series 300

A range of small / medium flow, direct acting, soft seat pressure relief valves. Exhausting to atmosphere with good discharge and re-seating characteristics. Pressure ranges up to 70Bar in various port configurations and sizes up to 1/2″. Body rating 140Bar.




Relief Valves – Series 310

A large capacity range of direct acting soft seat relief valves designed for accurate and repeatable set pressure blow-off and bubble tight re-seating. Available in sizes 1”, 1.25″, 1.5″, 2”, “T” and “L” port configurations. Blow-off settings up to 160Bar and body ratings up to 300Bar.

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