PE14_r076 - City

Hexagon head carbon steel metric bolts of the correct diameter shall be used with flanges to BS EN 1092-3:2003. ... British Gas Standard BGC/PS/PL2 Part 1, metric sizes, wall thickness to SDR 11. Fittings. Yellow polyethylene MDPE, heat fusion fittings, socket and butt to BGC/PS/PL2 Part 2. ... hose or tubing to connect gas supply to the header. ................
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