Galvanized steel conduit is a type of wire protection pipe that uses steel pipe as the base and undergoes hot-dip galvanizing or cold galvanizing treatment on its surface. It is commonly used in building electrical installation projects to provide protection and routing channels for wires and cables.
Material: Generally made of carbon steel or low-alloy steel, such as Q235 steel, it has high strength and toughness, and can withstand certain external impact and pressure.
-
Galvanizing process
-
Hot-dip galvanizing: The steel pipe is immersed 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: A layer of zinc is applied to the surface of the steel pipe through electroplating or spraying. The cold galvanized layer is relatively thin, generally ranging from a few microns to more than ten microns. The production cost is low, but its corrosion resistance is not as good as that of hot-dip galvanizing.
-
Product features
-
Strong corrosion resistance: The galvanized layer can effectively prevent the steel pipe from rusting, prolong its service life, and can be used in humid, acid-base and other corrosive environments.
-
High mechanical strength: The steel pipe itself has high strength and hardness, can withstand certain extrusion, stretching 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 wire leakage and short-circuit accidents.
-
Good fire resistance: Steel is a non-combustible material, and galvanized steel conduit has good fire resistance, which can prevent the spread of fire in case of fire and protect the wires and cables.
-
Convenient construction: Galvanized steel conduit is relatively light in weight, easy to carry and install, and can be connected by various methods such as threaded connection, welding, and socket connection, making construction convenient.
-
Specifications and dimensions: Common specifications include DN15, DN20, DN25, DN32, DN40, DN50, etc. The outer diameter ranges from 15mm to 150mm, and there are various wall thickness options. It can be selected according to different usage scenarios and wire and cable laying requirements.
-
Scope of application: Widely used in electrical installation projects in industrial and civil buildings, electric power, communications, transportation and other fields, such as wire laying in buildings, electrical line 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, etc. from entering the pipe; when passing through expansion joints or settlement joints of buildings, corresponding compensation measures should be taken.
