Welded Flange Pipes - Flanges are machined to an established 'undersize' specific to the pipe spigot, heated and shrink fitted to the pipe barrel. Subsequently they are welded to create a strong jointing system.
Cast Flange Pipes - These pipes are cast in our foundry as a single unit using our advanced Lost Foam method
Note
Due to the rigid nature of the joint and the risk of excessive bending moment being imposed it is advised that flanged pipework is not used in buried pipelines.
Flanged Joints are rigid but can act as a restrained joint, reducing the requirement of thrust blocks and external restraining devices. However it should be noted that the use of Flanged Joints as a buried pipeline is not recommended.
