Waverley Brownall

Our philosophy is dominated by quality.

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Introducing Our Diverse Solutions

Introducing Our Diverse Solutions

Masterful manufacturing

We are proud to manufacture products that are an efficient and durable solution within many diverse environments.

All fittings and valves are manufactured to BS 9001 to ensure quality, and our unrivalled flexibility in supply puts customers’ needs at the forefront of any order.

We stock a vast range of tube fittings, valves and instrumentation components to suit the needs of incredibly broad industries – over 25+ industries in fact!

This includes the nuclear sector, petroleum and natural gas, electricity and the processing industry that encompasses everything from chemical and pharmaceutical manufacture to food and agriculture production.

Reliable Results

engineer-1Engineer 1
Industry: Gas distribution

Problem: A large company requires lengths of tubing to install into a brand new project for gas distribution, to be delivered within a week. To deal with the internal gases, the tubing should be of an appropriate material for the working pressure rating and relatively low maintenance. The size required is 6mm tube OD with a wall thickness of 1.0mm.

Solution: A supply of stainless steel tube in grade 316 of the exact sizing specified for the project. Fast delivery service will be able to supply the tubing on-site, in 3 meters or 6-metre lengths. The company is rest assured of quality and efficiency by ordering from us, a British Gas approved supplier.

engineer-3Engineer 2
Industry: Aerospace engineering

Problem: A company working within the aerospace industry is looking for a bespoke component to be machined. The component needs to be designed for a specific purpose and also made from a durable material suitable for aero use.

Solution: We offer bespoke designs and precision machining of small components. The design, manufacture and supply of this component will be delivered within a reasonable time frame to the aerospace engineering company in monthly batches of the required amount.
The material used will be Titanium Grade 2 for its incredible capabilities in both high and low temperatures, as well as its beneficial strength to weight ratio.

engineer-2Engineer 3
Industry: Chemical engineering

Problem: A chemical filtration and piping system require pipe fittings able to withstand concentrations of hydrochloric and phosphoric acids.
Solution: To order pipe fittings and instrumentation valves manufactured in super alloy materials. Our team of experienced engineers are also free to contact for any advice needed on pressures, materials and component solutions.
Alloy (Hastelloy) C-276 would be the standard material choice as it is a staple of corrosion resistance in chemical processing, however, material required is heavily dependent on temperatures, substance and pressure which will be discussed at enquiry stages. Other options would include; Incoloy 825 (phosphoric), C-276 for aggressive and hot concentrations or 6 MO stainless or alloy 625 for general resistances to diluted hydrochloric.

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Relief Valves In Stainless Steel

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.

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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

Temperature Range Viton -20 to 200C
Temperature range High Nitrile -40 to 120C
Cracking pressure Adjustable from 100 to 6000PSI
Maximum working pressure 6000PSI
Outlet maximum working pressure 1500PSI

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

relief valves stainless steel

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

​ PSI Rating Bar Colour Part No.
A 100-500 3.4-34 Yellow PRV13
B 500-1000 34-68 Purple PRV14
C 1000-2000 68-136 Orange PRV15
D 2000-3000 136-204 Brown PRV16
E 3000-4000 204-272 White PRV17
F 4000-5000 272-340 Red PRV18
G 5000-6000 340-408 Green PRV19

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.

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High Pressure Needle Valves – Precision and Pressure

Needle valves: Precision Valves
Valves designed for specialised and precise flow regulations are used within systems for gas distribution, water filtration, chemical separation and more. At any point where the need for a liquid or gases flow rate to be controlled, a precision needle valve will allow control and regulation.

needle valve catalogue

Usually, this control of flow can be regulated by a spindle built into the needle valve design. We offer needle valves with superior efficiency, fully tested for pressure performance – designed by engineers for engineers.

High-Pressure
Higher pressures of capability are required in more extreme circumstances.

The Waverley Brownall series of high-pressure needle valves allows leak tight shut-off, for the ultimate control and regulation.

The split-stem design of our valves ensures accurate seating, as well as the bubble tight seal with gland lock nut, close tolerance gland yoke and locking plate. With pressures up to 10,000 psi, our stainless steel high pressure needle valves are built for long-lasting and effective instrument line shut off.

Full information can be found in our PDF catalogue.

VIEW PDF

Needle Valves are covered in pages 37-40

Material of Manufacture
As well as high-pressure needle valves, we offer materials of manufacture that can also cope with higher temperature and environmental capabilities.

Stainless steel 316 is the most popular needle valve material, however, for specialised corrosion resistance; we offer options of Hastelloy, 6MO stainless and Inconel.

needle valve diagram

Technical Features

Technical features include; media-free threads, self-adjusting shaft seals, back seating spindle, metal to metal bonnet seal, non-rotating ball tip and anti-tamper features.

Thread types; NPT National Pipe Taper, BSPP, BSPT.

Full cast code traceability.

Sizes

Series of gauge and needle valves most popular sizes include from ¼” to ¾” imperial. All high pressure needle valves and nut with thread are manufactured for specific sizing to fit the tube OD application.

needle valve chart from catalogue

Application

Needle valves can be used in areas where the flow of an internal material is to be controlled, usually, to slow the pace of the flow of material or on/off for isolation purposes.

They are ideal for areas of filling vacuum tubes, gas lasers, shut-off for pressure gauges and other piping systems. Designed and manufactured to BS ISO 9001, these high-pressure needle valves are suitable across many industry applications, providing an unmatched competence and regulation service within an instrumentation setting.

Further questions?

We offer free, no-obligation advice on precision valves and instrumentation enquiries. Please don’t hesitate to contact our team today on +44 (UK) 01702 600014.