Thomas Unifit universal pipe couplings are designed to accommodate plain ended pipes
with different outside diameters. One fitting is able to connect a wide variety of
pipe materials including steel, ductile iron, PVC, cast iron, GRP and asbestos cement
pipes, amongst others. The range is designed and manufactured under a strict quality
management system and the products meet the requirements of SANS 1808-2 of the South
Africa Bureau of Standards. All products in the range have a test pressure of 24bar
on water (9bar on gas) and are suitable for 16bar working pressure for water (6bar
on gas). Higher pressures up to 64bar are available on request.
Longer barrels, higher pressures, different coatings, special stainless steels and
specialized rubber compounds are some of the non-standard components available. We
are able to design and manufacture special couplings according to customer requirements.
An extensive range from DN15 mm - DN700mm exists for:
UNIFIT Long Barrel Couplings are designed specifically for the connection of GRP
& HDPE pipe. Barrel lengths are specified to cater for HDPE expansion & contraction
JUNIOR COUPLINGS are used for the quick and easy connection of galvanized mild steel
pipes from DN15 - 50mm.
For joining plain ended pipes of similar or dissimilar materials, UNIFIT Universal
Couplings have wide sealing tolerances ensuring all popular pipe materials can be
connected. From DN40 - 700mm.
UNIFIT Step Couplings are used for connecting pipes of different nominal bore and
different pipe material. From DN40 - 3000mm. Restraining cleats and harnesses can
be provided to prevent step couplings moving. Double bolt sets are available for
SPECIALS are available. Customers can specify special materials for bolts, rubbers
seals, sleeve and end rings. Higher pressure ratings are available up to 64bar. Special
corrosion protection coatings and dimensions can be made to order for all products.
UNIFIT Steel Flange Adaptors are available in any flange drilling from PN6 to PN64
and any nominal bore from DN40 - 3000mm. Restrained Flange Adaptors are also available.
UNIFIT External Test Caps are suitable for all rigid pipe materials. Sockets for
pipe testing can be added as required. Sizes from DN40mm - 3000mm.
For joining flanged pipeline components to plain ended pipes, UNIFIT Universal Flange
Adaptors have wide sealing tolerances and a universal flange drilling to suit T1000/3
& T1600/3. From DN40 to DN300mm.