Section 2 Construction and installation

2.1.1 Except where otherwise stated in this Chapter, pipes valves and fittings are to be made of steel, cast iron, copper alloy, or other approved material suitable for the intended service.

2.1.2 Where applicable, the materials are to comply with the relevant requirements of Pt 4, Ch 4 Piping and Pressure Vessel Design Requirements.

2.2.1 All pipes for essential services are to be secured in position to prevent chafing or lateral movement.

2.2.2 Long or heavy lengths of pipe are to be supported by bearers so that no undue load is carried by pipe connections or pumps and fittings to which they are attached.

2.2.3 All pipes situated in positions where they are liable to mechanical damage are to be efficiently protected.

2.2.4 After installation, all hydraulic, compressed air and other piping systems together with associated fittings are to be subjected to a running test at the design operating conditions.

2.3.1 Suitable provision for expansion is to be made, where necessary, in each range of pipes.

2.3.2 Where expansion pieces are fitted, arrangements are to be provided to protect against over extension and compression. The adjoining pieces are to be suitably aligned, supported, guided and anchored. Where necessary, expansion pieces of the bellows type are to be protected against mechanical damage.