HYDRO FLANGE ADAPTORS & COUPLINGS
Hydro Flange Adaptors 
Flange Adaptors are used to join a plain-ended pipe to a flanged pipe, fitting
or valve giving an effective leak proof seal. They can accommodate a 
considerable amount of deflection without loss of performance.

Harnessed flange adaptors used in conjunction with a flange spigot 
(complete with a tie flange) are an excellent method for providing a 
dismountable joint in a flanged pipeline. This is achieved by replacing four of
the bolts with tie studs. Where necessary the backing ring of the flange 
adaptor is notched to give clearance for the tie studs. 
               
Hydro Couplings
Couplings are used to join plain-ended pipes of the same material together; 
some wide tolerance couplings can join different pipe materials. Couplings 
offer a considerable amount of deflection, which makes them the ideal choice
for underground applications.

The Aifu ‘HYDRO’ Range of Flange Adaptors and Couplings are manufactured
to the highest standards and coated in Plascoat PPA571, this system
complies fully to BS 6920 and is WRAS approved for use with potable water,
offering easy and reliable pipe jointing with a durable long lasting corrosion
protection system.

The ‘S’ range of Flange Adaptors & Couplings are available in sizes to suit
80mm-300mm NB pipes these are a mid range product suitable for PVC, Steel
and Ductile Iron pipes. For sizes above 300mm NB we offer a dedicated range
to suit Ductile Iron pipe only these are available in sizes 350mm-700mm.
Standard flange drilling is PN16.

The HY range of Hydro Flange Adaptors and Couplings have a wide range and
will accommodate most pipeline materials. They are available in sizes to suit
50mm-300mm NB pipe.