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AVK Water Fittings

AVK is a leading manufacturer and supplier of a wide range of high quality fabricated, universal and tensile Flange Adaptors and Couplings to suit all pipeline materials for use in any water application from DN40 up to 1600. In addition, AVK manufacture Under-Pressure Tees and pipe repair products from DN15 up to DN1500.

The AVK Supa® Universal Straight Couplings, Step Couplings and Flange Adaptors are suitable for PVC, cast iron, ductile iron, steel GRP, concrete and AC pipes. The Couplings range from DN40 to 400.

Supa Maxi™ is an addition to AVK’s range of Supa® Couplings. It comprises a complete range of large tolerance Universal Tensile Straight Couplings, Step Couplings, Flange Adaptors, End Caps and Transition Couplings to EN 14525 for water and wastewater applications.

Optimum grip and tensile abilities on all pipe materials are secured by means of specially developed grip segments that are suitable for use on PE and PVC pipes, cast iron, ductile iron, steel, stainless steel, GRP, and AC pipes. The segments are mounted to provide maximum durability. The high-quality materials safeguard that the sealing ring does not loose compression over time, and that the coupling stays tensile.

AVK’s Series 258 Tensile Resistant couplings for use in water and waste water reduce installation costs and time; no additional heating or re-rounding equipment is required.
With design focused on ease of installation, these Fittings eliminate the need for additional equipment and are designed to suit all pipeline materials. Size range from DN350 (351-383) to DN1200 (1250 1282).  Strong, robust and easy to use, these fittings form a part of AVK’s extended and updated range of Mechanical Fittings.

AVK’s range of Fabricated Fittings comprises of Non-Tensile Straight Couplings, Step Couplings and Flange Adaptors DN350-1600. The range is suitable for ductile and grey cast iron, steel, PVC and GRP pipes for water and wastewater applications.

AVK’s Fabricated Couplings and Adaptors are designed to facilitate the joining of pipe of matching or differing outside diameter (OD) or for fitting flanged equipment into pipeline systems. The AVK Fabricated Fittings range is highly versatile where any pipe OD or flange variant can be accommodated within the range.

With a tolerance of 7mm ensuring that minor deviations in OD can be accommodated. Angular deflection per seal end is +4 mm < DN600, +3 mm < DN800, +2 mm < DN1600. Increased coating thickness and a range of fastener options including A2 and A4 stainless steel are available for more aggressive installation environments.


AVK UK has a 24/7 emergency same day leak repair service for water and gas mains.

AVK’s rapid response team put emergency orders into action immediately. Alternatively, AVK’s technical team can assist in identifying and recommending the correct repair clamp or fitting for the application.

From AVK’s facility in Hyde they offer either a same day, next day or 2 to 3 day service for a delivery to suit your requirement, via the 24 hour emergency line 0800 202 8228.

Find out more on the AVK website

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