AWWA Has Published C! Updates Include: • High Performance Polyethylene Resin (PE) with Safety Factor ≥ 2. • Zero-leakage allowance for. Plastics Pipe Institute position statment on AWWA C High density polyethylene (HDPE) has been used for municipal and industrial water applications for almost 50 years. HDPE’s heat-fused joints create a leak free.
|Published (Last):||27 June 2014|
|PDF File Size:||10.6 Mb|
|ePub File Size:||1.51 Mb|
|Price:||Free* [*Free Regsitration Required]|
American Iron and Steel Institute.
Updated C906-15 AWWA Standard To Publish Includes PE4710 State-Of-The-Art Resin
Average inside diameter ID can be calculated as follows: Company Profile Email Us. Determine the status of certifications by parties offering to certify products for contact with, or c960 of, drinking water.
Use of Annex A procedures may not always be identical, depending on the certifier. The surge pressure occurring in HDPE 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. The inner surface of the pipe shall give no indications of brittle-like cracking or crazing when examined with the naked eye.
For the PE materials described in this standard, the effective safety factor against transient and sustained pressures is at least 2: Purchaser Options and Alternatives.
Two standards developed under the direction of NSF: Joining methods shall be c9006 of conveying water at the design pressure of the piping system.
The bend-back test Sec. The inside and outside surfaces shall be semimatte to glossy in appearance and free of sticky or tacky material. Each length of pipe shall be visually examined and checked for marking accuracy and legibility. The categorized long-term strength in the circumferential or hoop direction as established from long-term pressure tests in accordance with PPI TR-3 and the methodology contained in ASTM D Pipes are classified in accordance with standard pipe dimension ratios DRs i.
DR 21 may be used only if the designer can operate the water main at working pressure less than 70 psig, or if the surge at 5 fps was attributed to occasional events only with recurring surges at 4 fps or less refer to Table C.
PPI updated position statement on AWWA C906
This derating should also be considered where pipelines are exposed to external elevated temperatures. Through our collective strength we become better stewards of water for the greatest good of the people and the environment. Hydrostatic design basis HDB: Each length of pipe surface shall be visually checked inside and out for defects as described in Sec.
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 awwx all segments of the plastic pipe industry. AWWA is the largest organization of water professionals in the world.
Appendix A Pressure Class Selection Per AWWA C Pressure Class for HDPE
Any indication of cracking or crazing is cause for rejection of the pipe. Five specimens cut equally spaced around the circumference of the pipe in the longitudinal direction shall be prepared and tested in accordance with ASTM D using a cross-head separation speed of 2 in. In the United States, authority to regulate products for use in, or in contact with, drinking water rests with individual states. Description of fitting xwwa. In order to facilitate this procedure, the ring obtained in paragraph 5.
The average specified outside diameter is used for establishing pipe DR using inch—pound units.
PPI AWWA C | C Statement
Alternately, this is confirmed by calculating WPR per Sec. The use of solid-color nonblack or color-striped pipe is allowed. Occasional surge pressures are caused by emergency operations. Occasional pressure surges Pos: This standard restricts the materials used for the manufacture of polyethylene pipe to three standard PE code designations: This standard classifies pipe in accordance with its pressure class PC.
In addition, consultation with PE pipe manufacturers is recommended.