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Emjay® Barbed Insert Fittings are designed for use on polyethylene pipe manufactured to SABS-533 specifications (class 3 or class 6). When properly used with this specification of pipe, these fittings will not increase the pipe diameter by more than 10% as recommended by the South African Bureau of Standards. Any additional increase in pipe diameter beyond this can cause stress cracking, especially in pipe not made to specification or of inferior quality. These fittings are manufactured with a unique (and registered) barb configuration which is designed to take maximum advantage of the memory of polyethylene pipe, making it possible for the pipe to return to it’s original size between barbs and thus maximising the effectivity of the barbs and improving the strength of the join.

The standard Emjay® Insert Fittings are made of black nylon, which is a tough and durable material. The reason these fittings are made black is to ensure the maximum resistance to UV degradation and to prevent the egress of red light into the pipe which could promote algae development. These fittings have been tried and tested for over 35 years in the harsh South African sun and are still going strong.

Emjay® Insert fittings are also available in green. These Green Fittings are made from polypropylene and are ideal for applications where a more rigid, non-hydroscopic fitting is required. Propropylene is also more resistant to chemicals and fertilizers than nylon. We add a high quality UV stabilizer to the material during the manufacturing process to minimise UV degradation caused by sunlight.

It is recommended that suitable clamps are used on all Emjay® Barbed Insert fittings to prevent fittings blowing out under pressure.

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