Tianjin Dingrunda Group CO.,Ltd.

High density polyethylene (HDPE) double-wall bellows is high density polyethylene (HDPE) as the main raw material to add the necessary additives, by extrusion molding processed with a corrugated structure of the pipe, the inner wall is smooth smooth, the outer wall ripples, the inner wall is hollow and tightly connected ring structure. With corrosion resistance, long service life, smooth inner wall, small flow friction resistance, integrated molding, performance is equal advantages.
Polyethylene is a chemically inert material, and because of its unique polymer structure, the bellows are manufactured with the following characteristics:

1 light: polyethylene density of 0.95g/cm3, lighter than water, product rice weight for the traditional cement pipe 1/8, very convenient construction.

(2) do not leak: pipe using a patentdesigned seal ring flexible plug connection, construction is convenient, high safety, will not leak, the cost is lower.

(3) Flexible tube: Unlike traditional pipes, PE double-wallbels belong to flexible pipes, which can release the additional load through certain deformations.

(4) Corrosion resistance: polyethylene is a chemically inert material, can withstand the corrosion of most chemical media.

(5) impact resistance: PE material impact resistance is good, external force impact will not be brittle.

(6) Cold resistance: the low temperature performance of PE material, can be used safely in the temperature range of -40 degrees C to 40 degrees C.

(7) Anti-sinking: PE bellows have good flexibleness, superior anti-ground-based subsidence performance, with excellent engineering value.

(8) anti-ultraviolet: PE bellows outside the wall added a certain composition of carbon black, with excellent anti-ULTRAviolet radiation properties.

(9) wear resistance: PE material is a wear-resistant material, wear resistance for the steel pipe 4 times, long service life.

(10) Non-toxic: PE material is a hygienic non-toxic material, no toxic gas emissions when burning, no "white pollution" hidden dangers.