To assess AquaShield Coupling and Flange Adaptors as manufactured by Viking Johnson.
The AquaShield Couplings and Flange Adaptors are designed for barrier pipes carrying waste and potable water through brownfield sites. AquaShield is approved to a working pressure of 16 Bar (water) and a vacuum pressure of -0.8 Bar.
AquaShield comprises of the liner body, manufactured from ductile iron, coated in black Rislan Nylon 11. The liner body features a tubular section, with an impermeable outer membrane to be inserted into the barrier pipe. Three clamp bands are placed on the exterior of the barrier pipe and tightened with stainless steel bolts to provide the necessary compression force to form a tight seal.
This schedule specifies the requirements for the AquaShield Couplings and Flange Adaptors as manufactured by Viking Johnson for the use on barrier pipes with a nominal diameter 90mm, and SDR 11 or SDR 17.
Full details can be found in the Assessment Schedule.
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