Description

Specifications

stepped coupling and flexible couplings
1) stepped coupling are designed for use on air, water, sewer and gas pipelines.

2) The couplings are wide tolerance product and fit all popular standard pipe sizes, thus dramatically reducing the number of product to be stocked for maintenance purposes.

3) The couplings are suitable for steel, PVC, ductile iron, asbestos cement, GRP, cast iron and concrete pipes. Step Couplings are designed and manufactured to fit on pipes of varying nominal bore where the pipes to be connected on either side excludes the use of the Unifit range.

4) Special reducing step couplings and reducing step flange adapters can be manufactured with reducers built into the product allowing a step across many nominal bores such as from DN*0mm to DN**0mm. 

Available Range 
From DN*0mm - DN**0mm. 

Material of Construction 
1) End Rings - Ductile Iron to BS***9 Grade **0/*2 , **0/7 
2) Sleeves - Ductile Iron to BS***9 Grade **0/*2 ,**0/7 or Steel to SABS ***1 Grade **0WA
3) Coating - Fusion Bonded Epoxy to SABS ***7 , minimum thickness **0 microns, colors in

    RAL***5, RAL***5 , RAL***9 , RAL***5, RAL***1 or others .
4) Bolts - Steel to BS**0 Grade **0M*0 , Carbon steel Grade 8.8, SS**4 or SS**6 

bolts available upon requests.
Bolt coating Dacromet , or Galvanized
Rubber Seal - E.P.D.M. Grade E to BS***4 ***0 Type W&D