Expertly designed relief valves with a maximum working pressure of 6000psi. The highest quality in pressure relief, manufactured within the UK and produced from stainless steel.

• ​Female/Female and Male/Male
• Male/Female
• Duoloc single ferrule compression
• Ringlok twin ferrule compression

Threads And Connections

Range of end connections available in single and twin ferrule OD Compression
(BSP, BSPT, NPT)

Sizes include 1/8″, 1/2″, 3/16″ and many more.

The maximum working pressure of our stainless steel relief valves is 6000PSI

Temperature Ratings

Relief Valve Materials

The standard material for our relief valves is stainless steel 316. However, special metals can be used to enhance the overall corrosion resistance and durability of your valve in extreme conditions.

We offer: Incoloy 825, 6MO, Monel 400, Titanium, Hastelloy, Inconel 625 and Duplex/Super Duplex Stainless Steel. A full listing on materials of construction and material certifications can be provided on request.

Waverley Brownall also offer Positive Material Identification (PMI) testing with state of the art equipment.

Testing

Each relief valve is individually tested for pressure relief operation and sealing performance based on BS 6755 P1.

The Waverley Brownall inspection engineers also ensure the safety and quality of your relief valve.

State of the art test guns can be used to positively identify the exact materials and alloy consistency within your fittings and valves.

If you would like this service with orders of exotic alloy relief valves EG. Monel 400, email us at enquiries@waverleybrownall.co.uk

Spring Selection Chart

Please state opening pressure or spring requirement when ordering.

Cracking Pressure

The cracking pressure on valves that have not been used for long periods of time may be above the set pressure.

Any Questions?

Feel free to contact our team on enquiries@waverleybrownall.co.uk for any questions you may have regarding our relief valves and fittings.