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About This Item

 

Full Description

This standard describes the requirements for materials, equipment, certification, and procedures for the field application of spray-in-place polymeric (SIPP) linings to the interior of existing potable water pipelines. The water pipelines to be renewed may be constructed of pipe materials such as steel, ductile iron, cast iron, asbestos cement, and concrete. Related work required for performing a complete contract is also generally described.

The standard covers all polymeric materials used in spray-in-place applications including epoxies, polyurethanes, polyureas, and hybrids of these compounds.

The in-situ spray application of polymeric linings is appropriate for pipe sections that can be lined with a computerized spray rig. The umbilical hose of the rig is inserted through the pipeline and then withdrawn progressively and uniformly using a computerized winch and spray head that applies the lining on the pipe surface to provide a continuous, smooth lining of uniform thickness.
 

Document History

  1. AWWA C620-19

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    viewing


    Spray-In-Place Polymeric Lining for Potable Water Pipelines, 4 In. (100 mm) and Larger

    • Most Recent
  2. AWWA C620-07 (R2017)


    Spray-Applied In-Place Epoxy Lining of Water Pipelines, 3 in. and Larger

    • Historical Version