The expanders are used to assemble the boiler heat exchanger tubes on the plates. The principle is to achieve a quick connection between the tubes and the tube plate by deformation of the conduit at its end with an expander.
Application: Heat exchanger in thermal power station, nuclear, refinery, petrochemical, etc…
Several models of air driven motor torque controlled rolling motor are available in our catalog. They are equipped with an adjustment of the tightening torque in view of a precise expansion. Stopping the expansion is automatic depending on the settings applied. Their structure is aluminum for increased comfort of use.
The Lokring system allows assembly and maintenance of piping assembly from DN8 to DN80 seamless, this is thanks to a standard range of carbon steel, stainless steel and nickel-copper alloy fittings. Designed to withstand pressures of 270 to 521 bar and temperatures of -29 to 343 ° C for carbon steel fittings, from 115 to 344 bar and from -50 to 425 ° C for stainless steel fittings.
The range of Lokring fittings is tested and qualified according to ANSI / ASME B31-1 B31-3 B31-5 standards.
Lokring is used on various fluid and gas processes in the chemical, petrochemical, pharmaceutical, automotive, marine and paper mills.
Available as standard in gearbox, T, 45 ° and 90 ° elbows, and ANSI flanges for diameters from DN8 to DN80, 10 to 80.