Manhole inspection

Helical corrugated steel pipes are continuously formed circular tubes made by rolling galvanized steel strips into a specific wave pattern, bending them into a spiral shape, and allowing the edges to interlock. Invented in the United States in 1896, these pipes have been in use for over a century and are an ideal substitute for cement pipes and reinforced concrete structures.

Helical corrugated steel pipe features

High compressive strength: 1.5~5 times that of the same diameter cement pipe

Lightweight and easy to transport: 1/5 to 1/10 the weight of the same diameter cement pipe

Construction Fast: Pipe sections (adjustable from 1 to 12 meters), clamp fast connection

Helical corrugated steel pipe applications

Drainage: Domestic water discharge, industrial wastewater discharge, road culvert drainage

Passageways: Highway-rail animal and human passageways, vehicle passageways, small open tunnels, and sheltered passageways

Protection: Underground Communication Cables, Gas Pipeline Protection Ducts, Urban Shared Tunnels

Industrial: Coal mine ventilation pipes, coal mine shafts, pile foundation casings, industrial chimneys

Agriculture: Farm well casing pipes, canal irrigation, siphon pipes, grain storage warehouses

Technical Parameters of Spiral Woven Steel Pipe

1. Sheet Material: JS-SGHC Hot-Dip Galvanized Steel Sheet or SS400 or Q235 Hot-Rolled Steel Sheet

2. Steel Plate Thickness: 1.2 ~ 4.2mm

3. Channel Cross-sectional Shape: Circular, Elliptical, Horsehoe, Scoop, etc.

4. Import/Export Forms: Orthogonal, Oblique, Straight Mouth, Oblique Mouth, etc.

5. Soil Filling Height: 0.3~70m 6. Diameter Range: 200~3600mm

7. Tube Joint Type: Clamp Connection.

8. Waveform Parameters: Wave Length x Wave Depth mm <Type: >75x25< >

9. Corrosion Treatment: Hot-Dip Galvanized Thickness 600g/m² (Both Sides)