HDPE (High Density Polyethylene) Double Wall Corrugated Pipes are
for gravity and low pressure sewerage and drainage, such as waste
water, sanitary sewer and storm sewerage for municipal or
industrial use. The pipes provide important benefits and distinct
advantages for sewer and drainage applications. Double Wall
Corrugated Pipe Features:1.Intensity and Stiffness (ability of
enduring geographical conditions load);2.Hydraulic features
(ability of transporting liquid);3.Sealability (no giveaway,
prevent polluting environment);4.Long Lifespan (corrosion
resistant, resistance to abrasion);5.Easily to
install;6.Comprehensive economical featuresFirst: Intensity and
stiffness. Because plastics embedded pipe is flexible pipe and it
endures the press with the soil around in correct design and
construct that plastics embedded pipe doesn 't need the same
intensity and stiffness as rigid concrete drain pipe.Next: In
hydraulic features, plastics pipe's resistance of fluid is less
than concrete pipe because of it's slippy inner surface. It's
proved by practice that smaller diameter plastics pipe can attain
required the same flow rate than concrete pipe at the same slope.
Plastics pipe can decrease the slope rate at the same diameter
(decrease construction workload ).Third: In sealability, Plastics
pipes' connection is credible. (flexible sealing ring bell and
socket link).Four: Plastics pipe has many advantages in useful
lifespan and corrosion resistant. Sewage and rainwater transported
by embedded pipe is always aggressive, acidity or causticity.
Sewage has powerful corrosiveness for example industrial water.
Plastics embedded pipe has better inoxidizability than metallic
conduit and concrete pipe. Plastics pipe's abrasion resistance is
better.Five: Prominent advantage in installation: light weight,
longer length (less connect), low require for pipe ditch and
foundation, easy connecting and quickly constructing. Plastics
pipe's virtue is prominent in city's crowded area and bad
geological area (for example high ground water level and flaccid
foundation).Last: plastic embedded pipe's virtue is being
discovered in comprehensive economic level. The price of plastic
embedded pipe is higher than concrete pipe. But it is approved by
installation practices in domestic and international market; in all
projects?cost of plastics embedded pipe was lower than concrete
pipe if the design and construction is correct. The cost of double
wall-corrugated pipe is as similar as concrete gripping pipe. Its
price decreases 30%-40% than faucet concrete pipe. Double
wall-corrugated pipe can reduce the construction period. Its
economic feature is apparent.Major technical indicators of HDPE
Double Wall Corrugated pipeDensity: 941kg/m2 ~965 kg/m2
;Refracton coefficient: 1.54nd;Water absorption
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