Safety Valves & Level Gauges

Manufactured to the highest standards

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Safety Relief Valves

Reliability and efficiency guaranteed

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Seetru Limited

Bristol Based Manufacturers - Since 1949

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Liquid Level Gauges

'See the tru' Level

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About Seetru

Manufacturing for over 75 years

Seetru Limited is a global leader in the design and manufacture of safety relief valves, liquid level gauges, and other ancillary valves for a wide range of applications.  Founded in 1949, Seetru has a long history of innovation and is committed to providing its customers with the highest quality products and services.

View the Seetru product range and find your safety solutions.
Safety Relief Valves   |   Liquid Level Gauges  |   View All Products

Brochures & Catalogues

 

Quality Guaranteed

Seetru products are known globally for their high quality and reliability, and they are used in a wide range of applications, including compressed air, industrial gas, refrigerants, powder, steam, liquid, and liquefied gas applications.  Seetru’s products comply with a number of important international standards, and they are available with a variety of approvals, including CE, EAC, UKCA, CRN, and TÜV.

About Seetru   |   Approvals

Safety Valves for Hydrogen Applications

These valves can withstand set pressures up to 1100 bar

Seetru safety valves the hydrogen applications.

Seetru supplies safety relief valves suitable for a wide range of hydrogen applications, including hydrogen generation, fuel cells, compressors and pumps, fuelling systems, storage, pressure vessels, piping systems, and transportation.

These valves can withstand set pressures up to 1100 bar, making them ideal for use in even the most demanding hydrogen applications. Seetru’s valves are designed to open quickly and reliably when the system pressure exceeds the set pressure, allowing excess gas to escape safely. This helps to prevent damage to the system and protect personnel from injury.

Safety Valves for Hydrogen Applications   |   View or Download our Hydrogen Brochure

Seetru Products

Browse the Seetru Product Range

Driving Innovation, Ensuring Safety

Browse a wide range of Safety Relief Valves and Liquid Level Gauges manufactured by Seetru.  Our safety relief and other special-purpose ancillary valves are designed for a wide range of compressed air, industrial gas, refrigerants, powder, steam, liquid and liquefied gas applications.  We also manufacture liquid level gauges, primarily of two types; sight gauges and magnetic float by-pass gauges.  Alongside our own manufactured item, we offer an extensive catalogue of pressure-regulating valves, pressure-reducing valves, and overflow valves.

Safety Relief Valves

Change-Over Valves

Pressure & Temperature Relief Valves

Liquid Level Gauges

Window Sight Glasses

Pressure Regulating Valves – from SCHLEY ARMATUREN GMBH
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Type 94605/946H5/95605/956H5

4.6mm Nominal Bore Enclosed Discharge Safety Relief Valve for Compressed Air & Gases - Including Hydrogen. Compact and space saving design, designed and built for repeatable operation, advanced sealing technology with super-lapped hard-faced seat and disc, designed to offer robust…

LGS Pressure Relief Valves

The LGS®range is suitable for a wide variation in flow characteristics, coping with both low volume and high relief capacity applications. The single trim design means that the components are all common across liquid, gas and steam; and that any…

Pressure and Temperature Relief Valves

The Seetru P3W Pressure & Temperature relief valve provides protection against both excess temperature as well as over pressurisation.  The valve will automatically discharge hot water at a predetermined set pressure and/or temperature.

Change Over Valve COV30

With change-over valves it is possible to switch over between parallel safety valves without interrupting operation, so that maintenance work can be carried out on each safety valve in turn.

The G35 Seemag Magnetic Gauge

The Seetru Seemag® tank content indicator or gauge is a high quality yet economical magnetic level indicator. Its unique design offers considerable advantages over conventional magnetic gauges including accurate step-less reading with all round visibility and the option of high/low…

10mm Bore 94610 Flanged

10mm Nominal Bore, Direct Spring Loaded Enclosed Discharge safety valve for compressed Air and Gases - Metal seal

Type 818

The 818 Range of Atmospheric Discharge Safety Relief Valves for Compressed Air & Gases are available with a choice of 6mm, 8mm, 10mm, 13mm or 15mm Nominal Bore. See datasheet for full details.

Type 848

8mm Nominal Bore Atmospheric Discharge Safety Relief Valve for Compressed Air & Gases

15mm Bore 98010 Flanged

10mm Nominal Bore, Direct Spring Loaded Enclosed Discharge safety valve for liquid applications - Metal seal

Safety Relief Valves

Reliable Protection Against Over-Pressurisation

Seetru's range of safety relief valves

Seetru safety relief valves are known for their reliability, performance, and safety. They are designed to open quickly and completely, and to reseat tightly once the overpressure condition has been relieved. Seetru safety relief valves are also designed to be leak-tight even after repeated popping, even at high pressures.

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Same Day Despatch

Safety Valves from Stock

Same day despatch safety relief valves. Seetru safety valves in stock for quick dlivery

Seetru offers atmospheric and piped discharge relief valves with brass or stainless steel construction. Also available is our LGS and LGS HI-FLOW range, these multi-purpose safety valves are manufactured in bronze and are suitable for liquid, gas, and steam applications. The Seetru P3W Pressure & Temperature Relief Valve provides protection against both excess temperature as well as over pressurisation.

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Industry Solutions

Industry Solutions

Discover more about the wide range of Industries we serve
Seetru serves a wide range of industries;  our products are used in oil and gas, petrochemical,
chemical, power generation, food and beverage, pharmaceutical, shipping, compressor, water
and wastewater treatment, HVAC, and refining.

 

 

Find Seetru Product Solutions for Your Industry

Solutions for Hydrogen

Seetru's range of safety valves and level gauges for the Hydrogen Industry

Seetru manufactures safety relief valves for a wide range of hydrogen applications, including hydrogen generation, hydrogen fuel cells, hydrogen compressors and pumps, hydrogen fueling systems, hydrogen storage, pressure vessels, receivers, and piping systems containing hydrogen, and hydrogen transportation. These valves are designed to protect equipment and personnel from overpressure in the event of a malfunction or other unexpected event.

Seetru safety relief valves are an essential part of any hydrogen system, helping to ensure the safety of equipment and personnel.

Safety Valves for Hydrogen

Solutions for Marine & Offshore

Seetru's range of safety valves and level gauges for marine & offshore

Seetru Limited offers a wide range of products for marine, offshore, and shipbuilding applications. These products are designed to meet the demanding requirements of these industries and are known for their reliability, performance, and safety.

Seetru Limited is a leading provider of safety relief valves, liquid level gauges, and other ancillary valves for marine, offshore, and shipbuilding applications. Seetru’s products are designed to meet the demanding requirements of these industries and are known for their reliability, performance, and safety. Seetru’s products are used by some of the world’s leading marine, offshore, and shipbuilding companies.

Level Gauges for Shipbuilding & Offshore

Seetru Engineering Services

Seetru Engineering Services (SES)

Your testing and refurbishment specialists

About SES

Seetru Engineering Services (SES) are the service arm of Seetru Limited which is a long-established Safety Valve manufacturer of over 70 years.  SES has been founded on the ability to react to customers’ requirements and to deliver total engineering solutions that improve the safety, quality, and value of our customers’ activities.

Today, our pedigree is demonstrated through our skilled people and our patented, unique, and exceptional new products and solutions.

We are seeking to exceed your expectations in all tasks and promote long-term customer relations.

SES workshops are the only LESER Approved Repair Centers in the UK!
Conact Seetru Engineering Services Read more about Seetru Engineering Services

Why safety valve testing and maintenance is essential

Compliance Demands Safety Valve Testing and Maintenance

Safety valve testing and maintenance are essential for:

Preventing equipment damage:

Malfunctioning valves can lead to costly overpressure incidents.

Protecting personnel:

Faulty valves pose safety risks and potential legal liabilities.

Maintaining compliance:

Regular testing meets industry standards and avoids non-compliance issues.

Optimizing production:

Reliable valves minimize shutdowns and improve plant efficiency.
Invest in a maintenance program for safe, efficient, and compliant operations. Treat safety valves as crucial guardians, not just equipment.

Don't Let Pressure Build

Why PED Compliance Demands Safety Valve Testing and Maintenance

The Pressure Equipment Directive (PED) safeguards lives and assets by setting stringent standards for designing, manufacturing, and operating pressure equipment. But even compliant equipment needs a dedicated guardian: the safety valve. Regular testing and maintenance of these critical devices are not just best practices, they’re mandatory under the PED for ensuring optimal safety.

Investing in proper safety valve testing and maintenance isn’t just a legal requirement, it’s a sound business decision. It safeguards personnel, protects valuable assets, and keeps your operation compliant and productive.

Read More about the Pressure Equipment Directive (PED)