NBR/Butyl rubber/Neoprene/EPDM/Natural rubber lined pipe and pipe fittings
The outside of rubber-lined pipe is made of steel or hard structure as the pipeline skeleton, and is lined with wear-resistant, anti-corrosion and high-temperature resistant rubber. It is widely used in the transportation and discharge of concentrate tailings in mining, metallurgy, electric power, chemical and other industries. Slag transportation and chemical raw material transportation. The rubber-lined pipe has excellent structure, and the test results of wear value are generally in the range of 0.03~0.20 cm3/1.61km, which is about 3-5 times of that of plastic, and the wear resistance is 4-6 times higher than that of steel pipe; the strength is high and the impact resistance is high; Wide temperature adaptability range, desulfurization rubber line can be used for a long time in the range of -50 °C ~ +150 °C, good lubricity, small loss of running resistance; good anti-aging performance; rubber for conventional acid, alkali and other media Adaptability, no corrosion and scaling; no cracking, reliable connection; easy to install.
Nitrile rubber (NBR) is prepared by copolymerization of butadiene and acrylonitrile. Oil resistant (especially alkane oil) and aging resistance is very good. The acrylonitrile content (%) in the nitrile rubber has five kinds, such as 42 to 46, 36 to 41, 31 to 35, 25 to 30, and 18 to 24. The more acrylonitrile content, the better the oil resistance, but the cold resistance is correspondingly reduced. It can be used for a long time in air at 120 ° C or in oil at 150 ° C. The nitrile rubber lined pipe has good water resistance, air tightness and excellent bonding properties. The nitrile rubber-lined pipe has excellent oil resistance, its oil resistance is second only to polysulfide rubber pipe and fluorine rubber pipe, and has good wear resistance and air tightness.
Henan Liwei Industry Co., Ltd. obtained the special equipment manufacturing license (pressure piping components) issued by the State Administration of Quality Supervision, passed the ISO9001:2015 quality management system certification, ISO14001:2015 environmental management system certification, OHSAS18001:2007 occupational health and safety management System Certification.
The company integrates scientific research, design, manufacturing, sales and service; it has strong technical force, excellent production equipment and complete testing means. At present, there are 68 welding equipment, 21 machine-added equipment, 16 vulcanization equipment, 8 rubber-making equipment, 20 lifting equipment, and 5 x 12-meter vulcanization tanks. The company has a flexible rubber joint, metal expansion joints, air duct compensator joint production capacity of 200,000 sets / year, lined plastic lined plastic 160,000 square / year production capacity.