The PE-ZKW8*1 polyethylene bundle tube for coal mines, available in various specifications, withstands friction from ores.

PE-ZKW8*1 Coal Mine Polyethylene Tube Resists Ore Friction

PE-ZKW8×1 coal mine polyethylene tube is a type of piping used in underground coal mines. The specific details are as follows:

- Structural Composition

- Core Tube: Made from polyethylene flame-retardant, anti-static material or pure polyethylene particles, formed by extrusion processing into a polyethylene single tube with an outer diameter of 8 mm as the core tube.

- Sheath: A single core tube is externally coated with a layer of polyethylene sheath, providing protection and sealing, ensuring the entire tube has good integrity and protective performance.

- Product Features

- Excellent Performance: Possesses good flame-retardant and anti-static properties. In alcohol spray lamp combustion tests, the maximum single flame combustion time is ≤10s, with an arithmetic mean of 6 tubes ≤3s; the maximum single non-flame combustion time is ≤60s, with an arithmetic mean of 6 tubes ≤20s. The arithmetic mean of surface resistance is ≤1×10⁶Ω, effectively preventing accidents caused by static electricity accumulation.

- Strong Corrosion Resistance: Exhibits good tolerance to chemicals such as acids, alkalis, and salts, enabling long-term stable use in complex underground coal mine chemical environments without being easily corroded.

- Good Flexibility: Soft texture allows bending at any angle according to the actual underground terrain and installation requirements, adapting to different laying environments and facilitating construction and installation.

- Lightweight: Significantly lighter compared to metal pipes, making it easy to transport, handle, and install, reducing labor intensity and improving work efficiency.

- Good Air Tightness: Ensures no leakage during gas transmission within the tube, guaranteeing the accuracy of gas sampling, monitoring data, and the effectiveness of operations such as nitrogen injection.

- Strong Series and Completeness: Can be customized to different lengths according to user needs, with a maximum length of up to 5000 meters. It can also be segmented as required during use, well meeting various application needs in underground coal mines.

- Technical Parameters

- Hydraulic Test: ≥0.63MPa.

- Tensile Strength: ≥9.0MPa.

- Elongation at Break: ≥300%.

- Working Pressure: ≤1.0MPa.

- Operating Environment Temperature: -10℃ to 40℃.

- Relative Humidity: 30% to 90%.

- Application Scenarios

- Gas Sampling: Used for gas sampling at single locations in underground coal mines, transporting air samples from underground to the surface or monitoring points via the tube to detect concentrations of harmful gases such as methane, providing data support for coal mine safety.

- Signal Transmission: Can serve as a simple signal transmission channel, such as connecting simple sensors and other equipment underground, transmitting monitoring signals to receiving devices at a certain distance, enabling monitoring of specific parameters underground.

- Operations Such as Nitrogen Injection: In coal mine fire prevention and extinguishing work, it can be used for low-pressure (below 0.5MPa) operations such as nitrogen injection, delivering nitrogen to specific areas to serve fire prevention, extinguishing, and inerting purposes.

Sales ServiceContact:Manager WangMobile: 16653525597Phone: 0535-7877701