Piping systems for rehabilitation of underground gas supply networks - Polyethylene (PE) material
Piping systems for rehabilitation of underground gas supply networks - Polyethylene (PE) material
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1 Scope This document specifies requirements and test methods for pipes and fittings which are part of piping systems for the rehabilitation, by means of renovation and trenchless replacement, of underground gas supply networks. It is applicable to polyethylene (PE) pipes, fittings and assemblies, as manufactured and as installed. It is not applicable to the existing pipeline. This document is applicable to the following technique families for renovation, intended to be used at an operating temperature of 20 °C as a reference temperature:
lining with continuous pipes; lining with close-fit pipes.
This document is applicable to the following technique families for trenchless replacement, intended to be used at an operating temperature of 20 °C as a reference temperature:
pipe bursting and pipe extraction; horizontal directional drilling and impact moling.
This document is applicable to:
PE solid wall single layered pipes (nominal outside diameter, d n
Другие стандарты BS