Selecting the right pressure class for high density polyethylene pipe (HDPE) in accordance with AWWA C can be done in two easy steps. AWWA C takes . AWWA C Polyethylene (PE) Pressure Pipe and Fittings, 4 in. Through 63 in. ( mm Through mm), for Waterworks. AWWA C/A Protective Fusion-Bonded Epoxy Coatings for the Interior and Exterior Surfaces of Ductile-Iron and Gray-Iron Fittings. AWWA.

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Like what you are reading? Sign up for our free newsletter. Maximum transient pressure due to the change is given in Table A The maximum awwa c906 pressure allowed equals 1.

AWWA C defines working pressure as “the maximum anticipated, sustained operating pressure applied to the pipe exclusive of transient pressures. A similar awwa c906 can be made for peak pressure during fire flow where velocity may reach 8 fps.

PPI updated position statement on AWWA C – High Country Fusion

DR17 pipe is ok. An engineer is designing a water system that operates at 85 psi and has some runs awwa c906 it where aawa flow velocity is 4 fps. Peak pressure during a surge is equal to the sum of the pumping pressure and the transient awwa c906 pressure. PE HDPE pipes provide zero-leakage, conserving water and preventing raw sewage from entering into waterways or watersheds, and they d906 ideal for both trenchless and trenched installations,” he continued.


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C9906, PPI collaborates with industry organizations that set standards for manufacturing practices and installation methods. Updates in C include: Compare with the maximum total pressure awwa c906 for occasional surge for DR17 of psi. Compare the pipeline working pressure with the pipe’s pressure awwa c906.

The test pressure of DR17 is also psi, which meets the specified test pressure.


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Occasional surges are caused by emergency operations such as fire flows. In this case add Working Pressure and Surge Pressure Example: Peak pressure may be obtained by adding the awwa c906 pressure at the design velocity from Table A-2 to the pumping pressure. PPI is awwa c906 premier technical, engineering and industry awwa c906 resource publishing data for use in development and design of plastic pipe systems.

The demands for installation of new pipelines, and revitalization of the deteriorating water pipe infrastructure are urgent and critical,” stated Tony Radoszewski, president of the PPI, the major trade association representing all segments of the plastic pipe industry. What DR pipe does the engineer use? PPI is the major trade association representing all segments of the plastic pipe industry and is dedicated to promoting plastics as the material of choice for pipe applications. Peak awwa c906 is compared with the maximum total pressure allowed during surge found in Table A News August 3, Transient surge pressure depends awwa c906 the instantaneous change in flow velocity.


The sum equals The C update, expected to be published on September 1,will include enhanced performance high-density polyethylene HDPE resins – PE – that improve the durability and reliability of HDPE pressure pipe used in municipal and industrial water and wastewater systems. The anticipated peak pressure in the pipeline is found by adding the pumping pressure of 85 psi to the surge pressure of The surge pressure occurring in Awwa c906 pipe is significantly lower than surge pressures occurring in cast or ductile iron pipe and is lower than that in PVC pipe of the same DR.

Compare the pumping pressure 85 psi with the available pressure classes in Table A AWWA C takes into account the continuous pumping and transient surge awwa c906 that occur in municipal water awwa c906. According to the Plastics Pipe Institute, Inc. Subscribe I agree to awwa c906 Terms and Privacy Statement.

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