CECS 168-2004 in English

Scope

This regulation is applicable to gray cast iron pipes with socket and clamp connections of DN50mm~DN300mm, internal pressure not greater than 0.3MPa, and temperature not higher than 80℃ in newly built, expanded and renovated civil and industrial buildings and their connections with Casing fittings for domestic drainage pipes, rainwater pipes, and non-corrosive industrial wastewater pipes. For outdoor overhead and buried pipeline projects, after taking relevant measures according to pipeline insulation, anti-corrosion and other requirements, you can also refer to them. This regulation stipulates that the cast iron pipes for building drainage flexible interfaces used should be pipes formed by the centrifugal casting process; the supporting pipe fittings used should be pipe fittings formed by machine-pressed sand casting.