Urgent: Instrument cable protective sleeve

The commonly used types are galvanized pipes and fiberglass pipes; you can check their prices online – they should be quite cheap, as the materials are readily available.

Industrial instrument cable protection tubes are generally made of galvanized steel pipes; the price of steel depends on the weight, as it is also sold by ton.

Instrument cable protection tubes are generally made of galvanized steel pipes

The cables are all connected using galvanized steel pipes, and the protective tubes made of galvanized steel are connected via cylindrical pipe threads. The connections must ensure electrical continuity throughout the system. The angle at which the protective tubes are bent, as well as their bending radius, must comply with the requirements specified in the project construction guidelines. The bends in the protective tube should have no dents, cracks, or significant bending; the interior of the tube must be clean and free of burrs, while its openings should be smooth with no sharp edges. The cable must not be damaged during insertion into the tube. Furthermore: Instrument signal cables and electrical cables should be laid separately, with a distance of at least 1000 mm between them, to prevent \"electrical\" interference with the instrument signals. When instrument signal cables and electrical cables are laid together, they should be arranged at a right angle

We use galvanized pipes, and we also use flexible hoses. They shouldn’t be expensive.

According to the specifications for installing anti-riot steel pipes, flexible pipes are used to connect steel pipes with instruments; they are usually of 4-inch or 6-inch diameter. Multi-core cables also use pipes with a diameter of over 1 inch

I wonder if aluminum alloy pipes are used, and which is cheaper, aluminum alloy pipes or galvanized pipes?

The price of steel is around 7,000 yuan.

The vast majority use GB/T3091-2008

Sewn galvanized pipes; steel prices are subject to market conditions