LESER Critical Service Safety Valves UK

LESER Critical Service Safety Valves

LESER Critical Service Safety Valves offer standardized solutions for demanding applications, particularly those involving critical and toxic media. These valves provide optimal and long-lasting corrosion protection for chemical processes, offering a cost-effective and technologically advanced alternative to expensive nickel-based alloys like Hastelloy®.

The use of Polytetrafluorethylene (PTFE), a high-performance plastic renowned for its unique properties, ensures superior protection against corrosion, reducing the total cost of ownership (TCO) while enhancing system safety.

Product Benefits

Superior Design & Manufacturing – Crafted to the highest standards for reliable performance.
Quick Response – Achieve full lift within 10% pressure increase above set pressure for rapid discharge.
Proven Durability – Backed by years of successful service in critical environments.
Tailored Solutions – Developed in close collaboration with plant engineers and service specialists to safeguard processes involving corrosive and toxic media.
Compliance & Global Approval – Meets the stringent requirements of end customers, OEMs, and planners, with worldwide approval from key classification societies.
Worldwide Applicability – Ensures reliable operation in diverse global applications, reinforcing LESER’s commitment to quality and performance.

Technical Data

Type 447 Type 447 is an economical alternative for applications in which there is also a highly corrosive atmosphere in the outlet body which requires the best protection through a PTFE lining.

Type 546 Type 546 is the solution for applications in which activation of the safety valve is very unlikely, due to the large difference between the operating and set pressure.

Type 449 Safety valve with gas flushing system. A second duct system is built around all system components that carry highly toxic media. This second casing is flooded with a carrier gas that neutralises the highly-toxic fluid in the event of a leak. Type 449 can be directly integrated into these carrier gas flushing systems.

Application

Corrosive and aggressive chemicals
Chemical equipment and piping
Chlorine manufacturing and processing
Reducing acids (e.g., hydrochloric acid, acetic acid)
Alkalis and caustic services
MDI systems

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