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Seetru Limited is a British manufacturer of safety relief valves and liquid level gauges operating since 1949. We are the principal company of the Seetru Organisation, a small integrated group of subsidiaries and associated companies. The Organisation includes LESER UK, and Seetru Engineering Services SES, which specialises in comprehensive safety valve maintenance service, including on-site/in-situ testing and calibration.

Quality, Innovation and Service

We have over 70 years’ of experience in the safety valve industry in which we have consistently delivered quality, innovation, and service.
Our specialist in-house R&D department is continuously improving the Seetru products to deliver the finest products to market. Seetru safety valves and special purpose ancillary valves are for a wide range of compressed air, industrial gas, refrigerants, powder, steam, liquid, and liquefied gas applications.

We also design, engineer, and manufacture liquid level gauges, primarily of two types; sight gauges and magnetic float by-pass gauges.

Safety Valve Services

Through Seetru Engineering Services we can maintain the integrity and efficiency of your safety valve by:

• Safety valve test and refurbishment (in workshop and in-situ);
• Isolation valve test and refurbishment (in workshop and in-situ);
• In-situ safety valve testing;
• On-site engineering works

This could help to reduce replacement costs, emissions, and energy losses to ensure that the functional performance of your safety valves is maintained to protect your pressurised systems.

LESER UK

We also can provide LESER safety valves which are globally recognised for their quality and efficiency, with a range of spring-loaded and pilot-operated safety valves for all industrial applications according to the Pressure Equipment Directive and ASME VIII.