PRODUCT SPECIAL ISSUE
Flame retardant / antistatic
The antistatic and flame retardant components of polyethylene pipes used in coal mines are evenly distributed in the pipe body, so the antistatic and flame retardant performance indicators will not be affected by the long use time. The antistatic and flame retardant properties are in line with national standards and are suitable for specific places where flammable and explosive underground.
Lightweight / easy to install
The density of polyethylene pipes used in coal mines is small, and the unit weight is only 1/8 of steel pipes and 1/3 of glass steel pipes. Therefore, polyethylene pipes used in coal mines are easy to transport and install. Use in underground can greatly reduce the labor intensity of workers and improve Work efficiency.
Good resistance to aging and fast cracking
Polyethylene pipes used in coal mines have good anti-aging properties, are not easy to embrittle, and have good toughness, absorb impact energy, and their elongation at break exceeds 350% 6. They have good resistance to rapid cracking and can effectively avoid fracture accidents.
Resistant to corrosion and scale
Polyethylene pipes for underground coal mines are highly resistant to corrosion and non-scaling. They are especially suitable for conveying high-alkali water in the underground, and water containing calcium, magnesium and other ions. Save the cost of anti-corrosion and descaling, and the service life is much longer than the comprehensive economic benefit of steel pipes is 6-8 times.
The inner wall of the polyethylene pipe used in coal mines is smooth, the absolute absolute roughness is 2/5 of the steel pipe, and the transportation resistance is small. Under the same conditions, the transportation capacity can be increased by 30%.