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LESER Nanotightness

LESER Nanotightness

The LESER Nanotightness technology for reliable valve function exceeds the tightness requirements of API 527 by 50%

More about LESER Nanotightness
Cool Solutions

Cool solutions

LESER offers safety valves for industrial refrigeration

To cool solutions
Urea-Synthesis Valve

A particular Medium

Urea plants have special safety valves requirements. Here is your solution.

Further Information
POSV for high pressure

Safety valves for high pressure

LESER expands the range for pilot-operated safety valves up to 426 bar/ 6170 psig.

To pilot-operated safety valves
Safety valves for FPSO

FPSO solutions for safety valves

Due to high alloy materials LESER safety valves are extremly corrosion-resistant.

Safety valves for FPSO

Welcome to LESER

Safety valves for all industrial applications

Safety relief valves from LESER reliably protect industrial applications against overpressure. Browse the product range and see some of our references.

LESER UK provides support and service directly from the manufacturer and holds a large stock with local assembly. Ask your LESER sales partner for competent consulting, convenient ordering, fast and punctual delivery and after sales service.

LESER products


LESER China with expert-knowledge about safety relief valves 10.02.2016 LESER China: We are locally available for you

Through our target-oriented activities LESER grows constantly and operates successfully in over 100 countries. In order to show our commitment to China we have founded “LESER China”, a subsidiary 100% owned by LESER in Germany.

LESERs API Alloy Concept for Corrosive Media & Environments 04.02.2016 Application-based Solutions – Our API Alloy Concept for Corrosive Media & Environments

Do you work with corrosive media or in corrosive marine environments? Our safety relief valves designed with the API Alloy Concept are particularly applicable for the highest corrosion-protection demands across all industries....

LESER Authorized Repair Centers (LARC) 26.01.2016 Low Lifecylce Costs with our Repair Centers Worldwide

Do you need quick maintenance, repair or adjustments of your pressure relief valves at low costs? LESER offers with its over 80 authorized repair centers worldwide the perfect solution.

Contacts in your country



Telephone: +49 40 25165 100

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