Galvanized steel conduit is a type of wire protection pipe that takes steel pipe as the base material and has been treated with hot-dip galvanizing or cold galvanizing on the surface. It is commonly used in building electrical installation projects to provide safe and reliable protection and laying channels for electric wires and cables.

Detailed Introduction

Material: Generally made of high-quality carbon steel or low-alloy steel, such as Q235 steel, which has high strength and toughness and can withstand certain external impacts and pressures.

- Galvanizing process

- Hot-dip galvanizing: Immerse the steel pipe in molten zinc liquid to form a relatively thick zinc layer on its surface. The hot-dip galvanized layer has strong adhesion and good corrosion resistance, with a thickness usually ranging from tens of microns to hundreds of microns. It is suitable for environments with high corrosion resistance requirements.

- Cold galvanizing: Apply a zinc layer on the surface of the steel pipe through methods such as electroplating or spraying. The cold galvanized layer is relatively thin, generally ranging from a few microns to ten microns. It has high production efficiency and low cost, but its corrosion resistance is not as good as hot-dip galvanizing.

- Product features

- Strong corrosion resistance: The galvanized layer can effectively prevent the steel pipe from rusting, extend its service life, and can be used in corrosive environments such as humidity and acid and alkali.

- High mechanical strength: The steel pipe itself has high strength and hardness, can withstand certain extrusion, tensile and bending stresses, is not easy to deform, and protects the internal wires and cables from damage.

- Good insulation performance: The steel pipe itself is a good insulator, and the galvanized layer also has certain insulation performance, which can effectively prevent electric leakage and short circuit accidents of wires.

- Good fire resistance: Steel is a non-combustible material, and galvanized steel conduit has good fire resistance. It can slow down the spread of fire when a fire occurs and protect the safety of wires and cables.

- Convenient construction: Galvanized steel conduit is light in weight, easy to carry and install. It can be connected by screw thread, welding, socketing and other connection methods, with high construction efficiency.

- Specifications and dimensions: Common specifications include DN15, DN20, DN25, DN32, DN40, DN50, etc. The outer diameter ranges from 15mm to 150mm, and there are multiple options for wall thickness, which can be selected according to different usage scenarios and laying requirements of wires and cables.

- Scope of application: It is widely used in electrical installation projects in industrial and civil buildings, electric power, communication, transportation and other fields, such as wire laying in buildings, electrical circuit protection in factory workshops, street lamp cable protection, etc. It is especially suitable for places with high requirements for wire and cable protection and harsh environments.

- Installation precautions: During installation, avoid excessive bending or stretching of the steel pipe to prevent damage to the zinc layer; the connection parts should be well sealed to prevent rainwater, dust and other substances from entering the pipe; corresponding compensation measures should be taken when passing through expansion joints or settlement joints of buildings.