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Performance and characteristics of double wall corrugated pipe

HDPE double wall corrugated pipe is a new type of pipe, which is made of polyethylene resin as the main raw material, by adding proper amount of additives, which can be used for outdoor drainage and municipal sewage. The utility model has the advantages of light weight, small drainage resistance, high compressive strength, corrosion resistance, convenient construction, etc. the utility model is an ideal material for replacing cast iron pipes and cement concrete pipes. Has the following characteristics:

First, greatly shorten the construction period and reduce the difficulty of construction

Because the HDPE double wall corrugated pipe quality far lighter than the cement pipe, very easy to plug, so greatly reduce the construction difficulty; and HDPE double wall corrugated pipe for a minimum of 6 m, and 2.5 m a cement pipe, greatly shorten the construction period.

Two, HDPE double wall corrugated pipe to ditch the demand is not high, because the cement pipe for steel pipe, to ensure the socket, the ditch must be smooth, the best foundation layer, and the construction personnel have absolute responsibility. HDPE double wall corrugated pipe for flexible pipe, the bottom of the ditch is not high.

Three, HDPE double wall corrugated pipe on the ground subsidence or not changes in the earth's crust fracture of HDPE tube steel tube elongation was 20 times, six and a half times of PVC, the breaking elongation rate is very high, very strong extension. This means that when the earth's crust is subject to changes in the surface of the earth, the HDPE tube can produce resistance to deformation without fracture. This is far better than the steel pipe, but also better than the obvious brittle PVC tube.

Four, the permeability of HDPE double wall corrugated pipe is much lower than that of the cement pipe, less than 2%, cause two pollution of groundwater, cement pipe inelastic, although with a rubber ring, but poor sealing effect, especially the construction personnel due to cement pipe, the construction is not good, just ignore the effect of lead rubber ring socket, lost, so as to make the tube increase of permeability.

Five, HDPE double wall corrugated pipe with long service life, more than 50 years of PE safety for a period of 50 years, cement Management on service life of 20 years, but it has long been the silicate, acid-base corrosion, life is greatly reduced. All over the country have cement pipes due to sewage leakage caused by ground subsidence, interface fracture, a few years will have to replace the example.

Six, HDPE double wall corrugated pipe inner surface is smooth, with no positive and negative electric core, do not scale cement pipe easy scaling, scaling, so that the pipe diameter, affect the flow.

Seven, HDPE double wall corrugated pipe light weight, easy to transport and installation, no loss of cement pipe quality, not easy to transport and installation, and easy to transport and installation.

Eight, when the pipeline through flow, gradient and depth at the same time, HDPE can compare the two types of small cement pipe, HDPE double wall corrugated pipe inner surface roughness coefficient is 0.009, cement pipe inner surface roughness coefficient is 0.014, according to the world recognized Xie only law, with the flow calculation, HDPE pipe than cement pipe small two models, but in practical application, a model can be suggested. Such as the design of 600 caliber cement pipe can be replaced with a 500 caliber HDPE.

PVC-U double wall corrugated pipe

PVC-U double wall corrugated pipe is a kind of special pipe, which is made of polyvinyl chloride as main raw material. The pipe has the advantages of beautiful appearance, strong pressure resistance, small water resistance and corrosion resistance to acid and alkali. The utility model has the advantages of energy saving, material saving and water saving.

1 product characteristics:

1, unique structure, high strength, compressive strength;

2, the inner wall smooth, friction resistance is small, large circulation;

3, corrosion resistance, leakage resistance, good environmental protection effect;

4, easy connection, good sealing, non uniformity of strong settlement;

5, buried life of more than fifty years.

2, 1, 2 edit application of telecommunication engineering, construction engineering, 3 sewer project 4, project 5, saline chiseling works 6, 7, 8 chemical plants, paper mills irrigation projects 9, 10, 11, highway engineering aquaculture wastewater treatment project.