Application Areas of Spiral Welded Pipes

Features of spiral welded pipes: It can produce large-diameter, thick-walled steel pipes, has strong pressure-bearing capacity, long single pipe length, and the cost is suitable for large pipe diameters. The welding seam is spiral. It mainly focuses on medium and large pipes above DN300, and is mostly used for burial, long-distance transportation, and large steel structures.

1. Long-distance oil and gas pipelines (core uses)

Onshore crude oil and refined oil transportation trunk lines

Natural gas gathering and transportation pipelines, urban high-pressure gas main pipes

Coalbed methane and shale gas transmission pipelines

Advantages: Large-diameter single pipe has large flow rate, can be laid underground, resists ground settlement, and has low comprehensive cost for long-distance projects.

2. Municipal water supply, drainage and water conservancy projects

Large-scale urban water supply main pipe network, raw water transmission pipeline

Rain and sewage diversion large-diameter sewage pipes, sewage treatment plant process pipes

Reservoir water diversion, water diversion projects, irrigation area water pressure pipelines

Sponge city, large pumping station pressure pipe

Applicable scenarios: deep underground burial, large flow, long-distance water transportation, often used for internal and external anti-corrosion (epoxy coal pitch, 3PE anti-corrosion).

3. Electricity and heat pipe network

Thermal power plant circulating water pipes, cooling water pipes

Central heating high-temperature hot water/steam directly buried main pipeline (jacket-protected steel pipe)

Power plant desulfurization, dust removal large diameter ventilation flue, circulating medium pipe

4. Bridges, docks, and pile foundation projects (infrastructure pile foundations)

Bridge pile foundation, highway viaduct pier steel pipe pile

Port pier casings, ship mooring piles, offshore temporary foundation pipe piles

Steel pipe piles for foundation support of high-rise buildings and large factories

Advantages: easy to process and lengthen, thick wall with high bearing capacity, resistance to lateral pressure and soil extrusion, and convenient piling construction.

5. Municipal Infrastructure and Steel Structure

Urban underground comprehensive pipe gallery casing, street pipe jacking

Large tunnel ventilation ducts and exhaust ducts

Large venues, wind power tower foundation supports, large billboard columns

Dam flood control diversion pipes, culvert pressure steel pipes

6. Industrial, mining and chemical industries

Mine tailings transportation and slurry pressure transportation pipelines

Low-pressure transportation pipelines for chemical plant sewage and chemical media

Coal washing plant, metallurgical plant circulating cooling water pipeline

7. Marine and wading engineering

Offshore cofferdams, land reclamation and drainage, blowing and filling and mud drainage pipelines

Offshore platform auxiliary water delivery and mud discharge pipelines

River dredging, dredging and drainage pipes