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Galvanized Iron (GI) pipes are steel pipes that have been coated with zinc to make them more resistant to rust and corrosion:
Material: GI pipes are made from mild steel strips or low carbon steel coils.
Coating: The pipes are coated with zinc through a process called galvanization.
Uses: GI pipes are used for a variety of purposes, including water distribution, drainage systems, construction projects, and irrigation systems.
Features: GI pipes are durable, resistant to dust and abrasion, and easy to weld. They are also strong and can withstand high pressure and external impacts.
Classification: GI pipes are classified as light (Class A), medium (Class B), or heavy (Class C). Light pipes are yellow, medium pipes are blue, and heavy pipes are red.
Lifespan: GI pipes can last up to 50 years in rural areas, but their lifespan decreases by 50% in urban polluted regions.
Before construction, you should be familiar with the construction period drawings, relevant technical requirements and acceptance standards, construction methods and technical essentials for various pipeline installations, prepare detailed construction plans, and guide construction; establish a construction quality assurance system to control the quality of each process during the construction process , so as to ensure that the pipeline engineering construction meets the requirements of design and acceptance specifications;
Pipeline cutting: Grinding wheel cutting machine should be used for cutting galvanized steel pipes. The fracture of the pipes should be flat and free of defects such as burrs, and the foundation should be polished with angular sand to remove oxides.
Before the pipeline is prefabricated, the flatness of the nozzle needs to be checked, and the flatness must meet the requirements of the specification.
Casings should be added when pipes pass through walls or floors, and the gap between pipes and casings should be filled with flexible non-combustible materials.
What are GI pipes used for? GI pipes are commonly used to supply water to homes and buildings, and to distribute treated water in rural water supply schemes.
How are GI pipes made? GI pipes are metal tubes covered with zinc to make them more resistant to rust.
How are GI pipes different from black iron (BI) pipes? BI pipes are uncoated and are commonly used to transport natural gas. BI pipes are more fire-resistant than GI pipes and are often used in fire sprinkler systems.
How durable are GI pipes? GI pipes are strong and durable because the zinc coating protects the steel interior. The coating can take damage instead of the steel, and the pipe will rust before the interior. This can increase the life expectancy of GI pipes to 40-50 years.
What are the sizes of GI pipes? GI pipes can range in size from 15 mm to 150 mm.
What are the types of GI pipes? GI pipes can be plain end, threaded, welded, or seamless.
| Size | materials | weight |
| 1 1/2 | galvanize iron steel | 9kls |
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