Improve the operating characteristics of your safety valve
The LESER Supplementary Loading System (SLS) is an
accessory that can be installed on new safety valves or
on safety valves already in operation (retrofit). It serves to improve the operating characteristics of the safety valve.
The main applications for the SLS in the pulp and paper
The protection of the drying cylinders
The protection of the steam boiler
Benefits of the Supplementary Loading System
The Supplementary Loading System supports the opening and closing of the safety valve. The LESER Supplementary Loading System improves the operating characteristics of safety valves in the following areas
Higher process productivity due to working pressure up to 97% of set pressure.
Less loss of media when the safety valve opens and closes.
Shorter duration of noise emission
Fully tight up to the set pressure.
Less wear of the safety valve
In the new brochure, LESER describes in detail how it works and also in detail the components and necessary requirements for installing the Supplementary Loading System
Technical Specifications for Supplementary Loading System
Operating Limits Valve Size
DN 25 - DN 400 | 1" - 16"
Operating Limits Pressure Class Inlet Flange
PN10 - PN400 | CL150 - CL2500
Max. operating pressure
Anbau an Type
441 up to DN 400, 457 up to DN 150, 526 up to DN 200
Additionally loaded (compressed air) 4 - 10 bar
PED/ DIN EN ISO 4126-5, PED/ AD 2000-Merkblatt A2, EAC
External energy | Open: 1% opening pressure tolerance | Closed: 3% closing pressure tolerance | Application: Steam, gasses and liquids
There are many ways to get in touch:
Complete our online enquiry form to quickly find the most suitable product. Click Here
Email your enquiry to firstname.lastname@example.org together with any questions. We aim always to respond within the 24 hours.
Speak to one of the LESER UK sales engineers today: +44 (0)117 930 6113
Use the chat box and speak to someone now through the website. We'll reply as soon as we can!