Over 20 years of R&D and manufacturing of perforated steel strip polyethylene composite pipes

1) For cold water use perforated steel strip polyethylene composite pipe

The perforated steel strip polyethylene composite pipe is a composite pipe with a perforated tube made from welded cold-rolled steel strip as the reinforcing skeleton and compounded with thermoplastic plastic. Due to the introduction of the reinforcing skeleton, the heat resistance and strength of the pipe are significantly improved. In terms of process, this product introduces an adhesive layer between the steel strip and polyethylene, and uses argon protection during steel strip welding to prevent oxidation of the molten steel plate during high-temperature welding, solving the water leakage problem of composite pipes and making the performance of the composite pipe more excellent.

1. Has higher rigidity, impact resistance than plastic pipes, and has a low expansion coefficient and creep resistance similar to steel pipes.

2. Double-sided anti-corrosion, with the same anti-corrosion performance as plastic pipes, and is corrosion-resistant. Operating temperature is increased.

3. Low thermal conductivity.

4. Smooth inner wall, no scaling, head loss is 30% lower than that of steel pipes.

5. Pipe connection uses electrothermal fusion connection, mature technology, and a wide variety of pipe fittings.

6. Lightweight, easy to transport and construct.

7. By adjusting the thickness of the steel plate and plastic, pipes of different pressure grades can be manufactured, and it is very convenient to change the parameters of the reinforcement to produce pipes of various pressure resistance grades.

8. Using plastics with high temperature resistance grades, such as heat-resistant PE-RT polyethylene, random copolymer polypropylene (PP-R), etc., can produce temperature and pressure resistant pipes.

9. High overall reliability of the pipe, with a service life of up to 50 years under normal conditions.

2、Heat fluid use perforated steel strip heat-resistant polyethylene (PE-RT) composite pipe(Dongtai Pipe Industry)

This product is composed of a perforated tube made from welded cold-rolled punched steel strip as the reinforcing skeleton and heat-resistant polyethylene (PE-RT) as the main material. Due to the introduction of the reinforcing skeleton and heat-resistant polyethylene (PE-RT), the pressure resistance and heat resistance of the pipe are significantly improved. This allows composite pipes originally only used for low-temperature (≤40℃) water supply to be used for hot water transportation, secondary heating pipelines, and in industrial fields such as chemical and pharmaceutical industries for transporting some high-temperature media.

3) Application fields

1. Chemical industry: Process and discharge pipes for transporting corrosive gases, liquids, and solid powders in industries such as acid, alkali, salt manufacturing, petroleum, fertilizers, pesticides, pharmaceuticals, chemicals, mining, rubber, and plastics.

2. Oil and gas fields: Gathering and transportation pipelines for oil-containing sewage, gas field sewage, oil-gas mixtures, polymer solution reinjection in oil wells, and secondary and tertiary oil recovery and gathering process pipelines.

3. Mining: Slurry, tailings, ventilation pipes, and engineering pipes.

4. Textile, printing, and paper industries: Process distribution and discharge pipes for transporting corrosive media.

5, Municipal engineering: Urban building water supply and drainage, drinking water, and heating network return water transportation.

6, Non-ferrous metals: Used for transporting corrosive media in non-ferrous metal smelting.

7. Agriculture: Deep well pipes, filter pipes, drainage pipes, ballast water pipes, ventilation pipes, etc.

8. Seawater transportation: Seawater desalination plants, coastal power plants, seawater transportation in port cities, submarine pipelines, and optical cable (cable) conduits.

9. Thermal power engineering: Process water return transportation, waste slag transportation.

10. Highways: Buried water supply and drainage pipes, cable conduits.

Main markets: Where to find perforated steel strip composite pipes in Jiangsu Province: Yangzhou, Nanjing, Xuzhou, Lianyungang, Suqian, Huai'an, Yancheng, Taizhou, Nantong, Zhenjiang, Changzhou, Wuxi, Suzhou. Where to find perforated steel strip composite pipes in Liaoning Province: Shenyang, Dalian, Chaoyang, Fuxin, Tieling, Fushun, Benxi, Liaoyang, Anshan, Dandong, Yingkou, Panjin, Jinzhou, Huludao. Where to find perforated steel strip composite pipes in Shandong Province: Jinan, Qingdao, Liaocheng, Dezhou, Dongying, Zibo, Weifang, Yantai, Weihai, Rizhao, Linyi, Zaozhuang, Jining, Tai'an, Laiwu, Binzhou, Heze. Where to find perforated steel strip composite pipes in Shaanxi Province: Xi'an, Yan'an, Tongchuan, Weinan, Xianyang, Baoji, Hanzhong, Yulin, Shangluo. Where to find perforated steel strip composite pipes in Shanxi Province: Taiyuan, Datong, Shuozhou, Yangquan, Changzhi, Jincheng, Xinzhou, Lüliang, Jinzhong, Linfen, Yuncheng. Where to find perforated steel strip composite pipes in Sichuan Province: Chengdu, Guangyuan, Mianyang, Deyang, Nanchong, Guang'an, Suining, Neijiang, Leshan, Zigong, Luzhou, Yibin, Panzhihua, Bazhong, Dazhou, Ziyang, Meishan, Ya'an. Where to find perforated steel strip composite pipes in Yunnan Province: Kunming, Qujing, Yuxi, Lijiang, Zhaotong, Simao, Lincang, Baoshan. Where to find perforated steel strip composite pipes in Zhejiang Province: Hangzhou, Ningbo, Huzhou, Jiaxing, Zhoushan, Shaoxing, Quzhou, Jinhua, Taizhou, Wenzhou, Lishui. Anhui: Hefei, Suzhou, Huaibei, Fuyang, Bengbu, Huainan, Chuzhou, Ma'anshan, Wuhu, Tongling, Anqing, Huangshan, Lu'an, Chaohu, Chizhou, Xuancheng, Bozhou. Fujian: Xiamen, Fuzhou, Nanping, Sanming, Putian, Quanzhou, Zhangzhou, Longyan, Ningde. Where to find perforated steel strip composite pipes in Gansu Province: Lanzhou, Jiayuguan, Jinchang, Baiyin, Tianshui, Jiuquan, Qingyang, Pingliang, Dingxi, Longnan. Where to find perforated steel strip composite pipes in Guangdong Province: Guangzhou, Shenzhen, Qingyuan, Shaoguan, Heyuan, Meizhou, Chaozhou, Shantou, Jieyang, Shanwei, Huizhou, Dongguan, Zhuhai, Zhongshan, Jiangmen, Foshan, Zhaoqing, Yunfu, Yangjiang, Maoming, Zhanjiang. Guizhou: Guiyang, Liupanshui, Zunyi, Anshun. Where to find perforated steel strip composite pipes in Hebei Province: Shijiazhuang, Handan, Tangshan, Baoding, Qinhuangdao, Xingtai, Zhangjiakou, Chengde, Cangzhou, Langfang, Hengshui. Where to find perforated steel strip composite pipes in Heilongjiang Province: Harbin, Qiqihar, Heihe, Daqing, Yichun, Hegang, Jiamusi, Shuangyashan, Qitaihe, Jixi, Mudanjiang, Suihua. Where to find perforated steel strip composite pipes in Henan Province: Zhengzhou, Kaifeng, Luoyang, Pingdingsh