News
Self-anchoring Pipe Fittings Now Available Up To DN300
Posted on 01st Sep 2007
Viking Johnson has added a DN300 (12") size to its patented FlexLock range of self-anchoring pipe couplings and flange adapters - the cost effective, simple and quick alternative to on-site welding, harnessing or thrust blocks.
Suitable for ductile iron or steel pipes, FlexLock has stainless steel teeth moulded into the gasket that grip the outer surface of the pipe as the bolts are tightened. This prevents pipe pullout under pressure yet still allows for angular deflection, making the fittings ideal for pipes installed above ground level or in soft ground.
Uniquely, joints can be dismantled and refitted repeatedly simply by replacing the gasket - especially useful on temporary pipework.
Now available in nominal sizes from DN50 (2") up to DN300 (12"), FlexLock couplings and flange adaptors have pressure ratings of 16bar from DN50 to DN200 and 10bar from DN250 to DN300. Couplings can accommodate total angular deflection of +/- 6 degrees (+/- 3 degrees for flange adaptors).
For protection against corrosion and damage during handling, all components are coated with the thermoplastic polymer Rilsan Nylon 11, which meets WIS 4-52-01 (Part 1) performance standards. Nuts and bolts are coated with PTFE Sheraplex in accordance with WIS 4-52-03.
