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HDPE PIPE PE
High density polyethylene (HDPE) has been used for municipal and industrial water application for almost 50 years. HDPE’S heat-fused joints create a leak free, self restraint, monolithic pipe structure that allows the pipe to be pulled from one area to another with minimum disruption to traffic or the environment; the fused joint will also eliminate infiltration into the pipe and infiltration into the environment. HDPE has other benefits which include chemical, abrasion, fatigue, seismic and corrosion resistance.
HDPE has been used in drinking water pipe applications for almost 50 years and has been gaining approval and growth in municipalities ever since. HDPE is specified and approved in AWWA C901, AWWA C906, NSF 14, NSF 16 and ASTM D3035. Also, HDPE has been used for sewer pipe applications for more than 30 years. Independent testing of HDPE in sewer service for 25 years showed no significant changes in the material’s physical or chemical properties. Also, HDPE’S unique characteristic has made it the product of choice for numerous mining pipe applications. It is a proven product in rugged terrains, extreme climates and changing site environments. HDPE is also preferred in industrial pipe applications because the hazardous nature of some chemicals being transported in industrial pipe applications is protected by HDPE is also preferred in industrial pipe applications because the hazardous nature of some chemicals being transported in industrial pipe applications is protected by HDPE’S fused joint.
Lab-Tests
The laboratory measures: outside diameter, Ovality, thickness of curtain and continuous monitoring of physical surfaces of pipe during production.
This test is done in order to monitor reaction of pipes against stable hydrostatic pressures in a stable temperature. Every inflection indicates deficiency in pipes like: disruption, and any leakage.
In the test high pressure implement on the pipes, so that in 60 to 70 seconds will be burst. The type of disruption shows indicators like: quality of row materials, proper extruder temperatures and proper cooling of pipes after production, Best type of disruption in the test is timidity and distortion in canary beak.
In the test, a sample the pipes in particular length is heated in a period of time in a standard way. Difference between length before and after heating are calculated as percentage of variation of length based on primary length. The maximum variation is up to 3%.
In the test resistance of row/ primary materials against demolition because of oxidation with O2 is measured. The oxidation process should take more than 20 minutes time.
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