Overpressure protection for the whole LNG value chain

Increase the efficiency of your LNG application with the specialist of safety valves

Wide product range that fullfills all requirements and extreme conditions
Global availability from consulting to support
over 200 years of experience in safety valves

Customers that trust LESER LNG products and services

Your Benefits

Cryogenic temperature proven

The tightness of the safety valves is ensured at media temperatures of < -146 °C / 231 °F by precise helium tightness tests based on the standard DIN EN 13648-1 on LESER's own cryo test bench.

Compliant with leading standards

LESER is a long standing partner to the gas industry and complies with technical industry standards such as API 526, NORSOK, NACE 0175 or ISO 15156.

Durable Design

LESER's low-maintenance Durable Design for efficient plant operation.

Offshore proven

The LESER High Alloy level concept and corrosion protection systems according to FROSIO, ISO 12944 C5M and NORSOK M-501 meet the high requirements for corrosion resistance.

Worldwide availability

Global network and regional proximity: Through LESER subsidiaries, sales partners and LESER Authorized Repair Centers (LARCs). They ensure prompt and regional consulting and maintenance in the guaranteed LESER quality.

New standards in Nanothightness

LESER Nanotightness concept for metallic sealing surfaces for highest sealing requirements at cryogenic temperatures.

Case Study

LESER LNG POSVs support high plant efficiency in liquefaction process

The efficiency of the plant was improved by the use of pilot-controlled safety valves (POSV) in the relevant areas. They are, in contrast to spring-loaded safety valves, tight up to the point of tripping and thus meet the requirement of a higher operation pressure in relation to the set pressure of the plant.

Six POSV's now support the efficiency of the LIMUM® technology in the liquefaction plant. LESER's project department supported Linde from the first FEED phase through to the commissioning of the project.

Cryo pilot-operated safety valves

Allow a high efficiency of the system
Linde can be sure that the system is reliably protected against overpressure even under cryogenic media temperatures and adverse external conditions
Proven on LESER’s own Cryo test bench.