Hot dipped plastic coating steel corrugated pipes
A green plastic coated steel corrugated pipe in integral style with flange plates is placed on the floor in the workshop.
Hot dipped plastic coated steel corrugated pipe in integral style
Hot dipped plastic coating steel corrugated pipe is a new kind of products. And our company is the one and only manufacture of this product domestic at present. We have already applied for a patent certificate. The base material of this pipe is steel and the interior and exterior surface sides is coated polyethylene (PE) or epoxy (EP). It enjoys the advantage of both plastic pipes and steel corrugated pipes. The advantage contains high mechanical strength, anticorrosion, easy installation, quick construction, long using life etc. It is very suitable for buried pipes instead of cement pipes and box culvert. It is the national popularized environment protection product.
Usage
Municipal engineering and construction: civic buried water (rain or sewage) drainage, utility tunnel, cable protection, checking well, tower crane cofferdam, vertical pile shell.
Road and Railway: culvert, passage, bridge, tunnel overhaul, temporary road, leakage well, etc.
Coal mine: minerals transferring pipes, passages for persons and machines, mine shaft, etc.
Public construction: power plan flue pipes, granary, cement bin, gasometer, fermentor, wind, turbine corrugated steel sleeve pipe, etc.
Martial use: military channel, air defence channel, exit channel.
Product advantage
The hot dipped plastic coating steel corrugated pipes have both rigidity and flexibility. The construct is reasonable for loading. The loading to it will be uniform distribution. It is deformation resistant.
The strength of hot dipped plastic coating steel corrugated pipe is much higher than similar type common plain pipes. The construction use this pipe can save much material and reduce works invest cost.
Hot dipped plastic coating steel corrugated pipe is the best resistant to soil corrosion. The protection property is much better than hot dipped galvanized or bitumen coating.
Hot dipped plastic coating steel corrugated pipe is strengthen anti-corrosion and anti-flush to fluid. Its property is much higher than any paint coating even galvanized.
The coating thickness of hot dipped plastic coating steel corrugated pipe is more than 0.35mm and the adhesion is very strengthened. It’s alike lining a layer of plastic. The technology is much better than electro-static or other spraying coating.
Hot dipped plastic coating steel corrugated pipe can be constructed directly and no need to painting or coating in the fieldwork. It simplified the process of construction.
The suitable using area of hot dipped plastic coating steel corrugated pipe is enlarged. It’s suitable use for any buried pipe lines. To choose different technology and coating materials, the pipes are suitable use for various fluids and environment e.g. anti-corrosion, anti-alkali, high temperature, air flowage.
Integral corrugated steel pipe is the optimum combination of strength, flexibility and performance
Our company is a professional manufacture of corrugated steel pipe. In the following we intend to give customers the detailed description of integral corrugated steel pipe.
Integral corrugated steel pipe is made of a whole corrugated steel plate without a joint. It’s high strength, light weight, low cost with a long service life. Compared to assembled corrugated steel pipe it’s more convenient to install and there is no leakage. The construction period is shorter. Of course there are some shortcomings. Integral corrugated steel pipe is not easy to transfer than assembled steel pipe. The diameter and length are limited, whole round pipe ￠0.3m-￠2.5m, while assembled round pipe ￠3m-￠6m, and the pipe wall thickness is 2.0mm to 8.0mm.
Integral corrugated steel pipe is applied to culverts, infiltration wells of highways, railways and waterways, temporary bridge load-bearing structure, underground pipeline, reconstruction and reinforcement of bridge and culvert.
Technical advantages:
High strength: the strength of corrugated steel pipe is 1.5-3 times of cement pipe and it has a long service life.
Light weight: corrugated steel pipe is 1/15-1/5 of the same specification of cement pipe.
Convenient construction: In the site there is no need to use high-duty machinery; it’s fast and easy to construct.
Axial direction: corrugated steel pipe is applied to the settlement of more serious occasions.
Corrugated steel pipe can improve the phenomenon of dislocation that happens in the land-based structures and embankment, so as to improve the degree of comfort.
Environment production and low carbon: reduce or abandon the use of cement, sand, gravel, wood, it is conducive to environmental production and reduced the carbon emissions.
Convenient maintenance: In a considerable part of environment corrugated steel pipe even can without maintenance. It is significant to reduce post-operational costs.
Similar to other corrugated metal pipes, helical corrugated metal pipe has also the corrugation shape. Corrugations add the structural strength and stiffness to culverts. More over, helical corrugated metal pipe has the special corrugation - annular pattern corrugations, which not only make the culverts more strong and stiff, but also reduce the roughness of flow through the pipe.
Helical corrugated metal pipe specifications
Code DN (mm) Thickness (mm) Corrugation (mm) Galvanization (g/m2) Using life (years)
HCMP-1 300-400 1.6-2.0 68 × 13 ≥300 ≥100
HCMP-2 500-800 1.6-2.8 68 × 13 ≥300 ≥100
HCMP-3 700-1200 1.6-4.2 68 × 13 ≥300 ≥100
HCMP-4 1400-1600 2.0-4.2 68 × 13, 75 × 25, 125 × 25 ≥300 ≥100
HCMP-5 1700-2400 2.8-4.2 68 × 13, 75 × 25, 125 × 25 ≥300 ≥100
HCMP-6 2500-3600 3.0-4.2 75 × 2,5 125 × 25 ≥300 ≥100
As a professional company devoted to providing our customers optimal corrugated steel pipe solutions, we accept customization on pipe diameter and wall thickness, either galvanized and asphalt coating or polymer coated steel is OK.
Anticorrosive corrugated steel pipe is the best choice for harsh environment
We can offer anticorrosive corrugated steel pipe that used in harsh environment because of its superior corrosive resistance. Our anticorrosive corrugated steel pipe can be divided into galvanized pipe, aluminized type 2 coating, polymer-laminated coated and asphalt coated corrugated steel pipe.
Galvanized or zinc-coated steel is the standard finish of all corrugated steel pipe and it performs well in low-abrasion conditions. The galvanized corrugated steel pipe can be serviced for 25 years without damage.
Aluminized type 2 coating can offer much more corrosion resistance than galvanized products. It has the characteristics of aluminum of high strength and low cost. The service life can be up to 75 years.
Polymer-laminated coating is the ideal choice for the most aggressive environments. It is a tough, heavy-gauge film that is laminated to both sides of galvanized steel to produce a corrosion and abrasion barrier. Polymer laminate corrugated steel pipe can stand up to high concentrations of acids and alkalis. The service life can be more than 100 years.
Asphalt coating is often coated after fabrication or after installation. It is used to reinforce the pipe in the sites where the three coatings available (galvanized, ALT2 and polymer) on steel delivered to pipe fabrication facilities may not be the best match for the site conditions.
Special type corrugated steel pipe in different shapes can meet customers’ requirements
Our company can supply corrugated steel pipe available in different shapes. They refer to non-standard circular corrugated steel culvert pipe that buried under the road, railway and it is made by corrugated metal coils or corrugated steel pipe assembled of corrugated plate. The shapes can be oval, dustpan, horseshoe shape. They are widely used in highway, railway culverts, channels, bridges, temporary pavement, drainage channels and a variety of mine roadway retaining wall supporting projects.
Material of plate: SS400 or Q235 hot rolled steel plate
Thickness of the plate: 2.0-7.0mm
It can be divided into integral type and assembled type according to the assemble form.
According to the sectional shape of channel it is available in round, oval, arched, horseshoe shape, dustpan-shaped and pear shaped.
By the form of import and export: orthogonal, oblique, straight, oblique mouth
Filling height: 1.5-60m
Diameter of span: 0.5-12m
Section of pipe connection form is divided into: inner flange connection, flange joints, plate lap, and clamp connection.
Waveform parameters (wave pitch*wave depth): 150*25, 200*55, 150*50, 150*65, 300*110, and 400*180.
Anti-corrosion treatment: hot dip galvanizing antiseptic treatment of ≥ 63 μm, secondary corrosion is generally added asphalt coating
Years of use are for more than 100 years.
The selection process
According to the diameter, height of filling culvert to select the waveform parameters.
According to the filling height, special anti-corrosion requirements to choose steel plate thickness.
According to the conditions of transport, installation environment to choose assembled form.
Application of arched corrugated steel pipe:
Highway and railway: bridge, culvert, channel tunnel, culvert tunnel overhaul, temporary pavement, infiltration wells.
Municipal construction: common channel, optical cable protection, drainage ditch, tower crane, vertical pile shell.
Coal mine: mineral transporting pipeline, and mining machinery, shaft passage.
Civil: power plant smoke pass, warehouse grain reserves, fermentation tank, and wind power.
Military: military sidewalk, air defense channel and evacuation routes.
From home and abroad application situation, corrugated culvert pipe has a strong ability to adapt; has great advantages to replace the traditional method so the application prospect is very considerable.
Spiral rib pipe can solve your storm water problems with the improved hydraulics
Spiral rib pipe is our innovative flexible metal pipe that combines the proven strength of corrugated metal pipe with the flow capacity of a smooth inner wall. That is to say the product has two layers: the first layer is a smooth interior corrugated steel pipe and the second layer is a smooth steel liner providing for improved hydraulics. It is also called smooth wall spiral rib pipe or double wall corrugated steel pipe. It is economical and easy to install. It combines the advantages of many piping varieties into one revolutionary product. Spiral rib pipe is lightweight, easy to use and install, high strength, long-lasting and with superior performance therefore it is the perfect pipe that used for storm water sewer systems, culverts and drainage systems.
Spiral rib pipe features and benefits
Revolutionary hydraulic design: Spiral rib pipe has better hydraulics than the traditional metal pipe and manning’s n factor is 0.012 therefore it is allowed to be used interchangeably with concrete pipe and plastic pipe without affecting flow capacity.
Strength and durability: Spiral rib pipe is stiffer than HDPE pipe so it is less inclined to deflect and fracture. It maintains the project grade longer than concrete pipe due to the positive joint connection and long pipe lengths. Various metals and coatings are available depending on site conditions. Customers can match the metal and coatings with the site conditions to achieve the best engineering design service life and economic efficiency.
Cost savings on installation: Steel spiral rib is only weighs only 10% as much as concrete pipe while the aluminum spiral rib weighs only 3% as much. With the weight reduction it is easy to install and can save a lot of money on labor costs.
Versatility: Spiral rib can be fabricated in virtually any length or diameter. Our company can supply non-standard pipe size to meet your projects.
Applications
Can be used for pipes and culverts
Drainage systems
Storm water systems
To suit the applications in construction, our spiral rib pipe comes in different diameters and lengths of six meters or longer. The thicknesses range from 1.6mm to 2.8mm. The material can be galvanized or aluminized type 2 steel and is about 1/12th the weight of concrete pipe.
O.D. (mm) I.D. (mm) Ring stiffness rank
SN8 SN10 SN12.5
≥8KN/m2 ≥10KN/m2 ≥12.5KN/m2
External Diameter (mm) External Diameter (mm) External Diameter (mm)
200 200 224 224
300 300 325 325
400 400 438 438
500 500 539 539
600 600 644 644 644
700 700 745 745 745
800 800 852 852 852
900 900 963 963 963
1000 1000 1063 1063 1063
1100 1100 1173 1173 1173
1200 1200 1273 1273 1273
1300 1300 1385 1385 1385
1400 1400 1485 1485 1485
1500 1500 1585 1585 1585
1600 1600 1693 1693 1693
1700 1700 1793 1793 1793
1800 1800 1893 1893 1903
2000 2000 2105 2105 2121
2200 2200 2307 2307 2323
2400 2400 2527 2527 2533
2500 2500 2629 2629 2635
2600 2600 2729 2729 2743
2700 2700 2848 2848 2858
2800 2800 2958 2958 2973