PEX to DIN 16892/93, WRC approved, ASTM F876, F877 with protective conduit. Hot water booster pump suction and discharge, and using insulation. Hot water supply and return distribution risers for all sizes and using insulation.Ĭold and potable water distribution pipe work up to DIA 90 mm. Rising mains from transfer pumps, and using mechanical joints.Ĭold and potable water riser pipework for all sizes, and using insulation for the cold water line. Pipe work from water tanks (at all levels) up to suction of the transfer pumps, fire pumps and fire pump test pipe. Non-Potable water piping, and using solvent cement jointsįor DN65 & larger Copper pipes & fittings to ASTM B – 88 Type Lįor DN 50 & smaller BSEN-1057, R250 plain Underground incoming pipe work between incoming water meter and RCC. UPVC class E pipes to BS-3505, & fittings to BS 4346 Underground incoming pipe work up to the main water meter Smooth bore, single, solid-wall drain, waste, and vent Bell and Spigot with electro-heat fused fittings. The method statement covers all horizontal and vertical domestic water system installations in all areas of the project, using various types of material as per specifications and also as per the below table: Material Name It gives details of how to carry out the work and what health and safety issues and controls are necessary.
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