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Technical Design Data / Pipe Materials

Pipe Materials

1 min read

Most rigid and semi-rigid pipe materials can be joined with Viking Johnson coupling products, including:

Asbestos Cement pipe material icon

Asbestos Cement

Cast Iron pipe material icon

Cast Iron

Concrete pipe material icon

Concrete

Ductile Iron pipe material icon

Ductile Iron

GRP pipe material icon

GRP

PE pipe material icon

PE

PE Barrier Pipe pipe material icon

PE Barrier Pipe

PVC pipe material icon

PVC

Stainless Steel pipe material icon

Stainless Steel

Steel pipe material icon

Steel

Of these, the rigid materials with high strength capabilities, such as steel, grey cast iron, ductile iron and concrete can be joined using standard Viking Johnson couplings without revision to our normal fitting instructions.

Certain lower strength materials, such as the lower classes of asbestos cement pipe, may need reduced bolt torques to avoid pipe damage.  Glass reinforced plastic (GRP) pipe is relatively flexible and its structure may be damaged by high gasket pressures.  Reduced bolt torques are also recommended for this pipe material (details available on request).

Polyethylene (PE) pipe is produced in various types and with various performance capabilities.  All exhibit the tendency to creep i.e. change shape when loaded and the use of standard Viking Johnson couplings may result in leakage or pipe pull-out.  Viking Johnson UltraGrip, AquaGrip, AquaFast and AquaShield products are both specifically designed to join PE pipe either to another PE pipe or to flanged equipment or other pipe materials.

1 min read