Industrial Uses of Galvanized Pipes

Industrial Uses of Galvanized Pipes
Galvanized pipes are widely used in the industrial sector for fluid transportation, structural support, and equipment support due to their strength, corrosion resistance, and cost-effectiveness. Specific industrial applications are as follows:
1. Industrial Fluid Transportation Pipes
Low-Pressure Fluid Transportation
Used for transporting industrial gases (pressure ≤ 1.6 MPa) such as compressed air, nitrogen, and inert gases, such as air supply pipes for pneumatic tools in workshops and cooling air ducts for machining equipment.
Transporting industrial wastewater and circulating water (non-corrosive), such as cutting fluid recovery pipes in machinery plants and auxiliary cooling water pipes in power plants.
Fuel and Energy Transportation
Low-pressure fuel gas (such as natural gas and liquefied petroleum gas) branch pipes within a factory require threaded, sealed connections to prevent gas leaks.
Low-pressure steam pipes (temperature ≤ 100°C) for small boilers utilize their corrosion resistance to reduce corrosion caused by steam condensate. II. Equipment and Machinery Manufacturing Support
Equipment Frames and Supports
As base frames, guardrails, and operating platform supports for industrial equipment, such as the outer protective frames of machine tools and support columns for assembly lines, the galvanized coating protects against oil and coolant corrosion in the workshop.
Auxiliary structures for heavy machinery, such as the counterweight supports of cranes and hydraulic pipe jackets (protecting internal precision piping) for construction machinery.
Transmission and Conveying Components
Roller shafts and conveyor belt supports for low-speed conveying equipment, such as the auxiliary conveyor frames of mining screening equipment and the material guide pipes of grain processing machinery.
Heat dissipation pipes for equipment cooling systems (non-high-temperature environments), such as the cooling water circulation branches of injection molding machines.
III. Industrial Infrastructure and Temporary Facilities
Plant Networks and Infrastructure
Fire protection pipes (low-pressure fire hydrant systems) within the factory area are galvanized to withstand outdoor or underground environments, reducing the risk of rust and blockage.
Temporary water supply and drainage pipes during factory construction, as well as temporary scaffolding during construction (especially in humid or rainy areas). Warehousing and Logistics Facilities
Warehouse rack support columns and beams (lightweight racks) feature a galvanized coating to resist corrosion from humidity and spilled liquids.
Logistics sorting line frame structures and conveyor rail supports offer both strength and wear resistance.
IV. Metallurgical and Chemical Auxiliary Applications
Metallurgical Auxiliary Piping
In steel mills and non-ferrous metal smelters, these pipes are used to transport non-corrosive auxiliary media, such as blast furnace cooling water pipes (low-pressure sections) and rolling mill descaling water (low-pressure pipelines before high-pressure water).
Lubrication system piping for metallurgical equipment (transporting non-corrosive fluids such as lubricating oil and hydraulic oil).
Chemical Low-Corrosion Applications
These pipes are used to transport neutral or mildly corrosive materials (such as dilute brine and cooling water), or as outer protective casing for highly corrosive pipelines (such as the outer layer of a polytetrafluoroethylene-lined composite pipe).
Chemical storage tank ladders, guardrails, and other auxiliary structures protect against potential corrosion from spray water and humid environments. V. Other Industrial Auxiliary Uses
Painting and electroplating workshops: Used as workpiece hangers and spray pipes (for conveying clean water or weakly alkaline degreasing solutions). The zinc coating can reduce mild corrosion from acid and alkaline mist.
Environmental Protection Equipment: Grid frames for wastewater treatment equipment, draft pipes for sedimentation tanks (for conveying raw, non-strongly acidic/alkaline wastewater), and auxiliary exhaust ducts (low-temperature sections) for waste incineration plants.
Limitations and Alternative Applications
Galvanized pipes are not suitable for highly corrosive environments (such as conveying acids, alkalis, and organic solvents) or high-temperature and high-pressure applications (such as superheated steam and high-pressure chemical fluids). These applications are often replaced by stainless steel, plastic-lined steel, and fiberglass pipes. However, for less corrosive, medium- and low-pressure industrial applications where cost and corrosion resistance are a balance, galvanized pipes remain an economical and practical choice.