超高分子量聚乙烯复合管是由超高分子量聚乙烯管和碳钢管经科学的工艺复合而成。其特征是由带法兰的钢管作为加强护层的外层，敷以由超高分子量聚乙烯管作为基体管材的内层，内层超高分子量聚乙烯管的基体管材沿外层管口延伸至法兰端面外缘形成整体的结构，将超高分子量聚乙烯管与碳钢管的特性合二为一，形成了具有耐磨、耐冲击、耐腐蚀、耐高压、自润滑、吸收冲击性能、抗粘结的管路设备，广泛应用于火力发电系统的粉煤灰输送、回水管道，矿山行业的尾矿、泥浆输送，煤炭行业的选煤厂粉煤高压输送、水煤浆高压输送以及其它行业的泥浆，含渣腐蚀性介质输送等领域。
      超高分子量聚乙烯复合管产品特性：
      （1）具有了超高分子量聚乙烯管的所有特性
      由于输送介质和钢管完全有效的隔离，只与超高分子量聚乙烯管层接触，凭借UHMW-PE的独特分子结构，使其具有了超高分子量聚乙烯管的所有特性，如：极高的耐磨特性、优良的化学稳定性、良好的自润滑性、对生物无毒性、独特的耐低温性、表面非附着性等，大大延长管道的使用命。
      （2）极高的耐冲击性超高分子量聚乙烯管本身就具有极高的耐冲击性，其作为加强护层的钢管能有效防止内衬管蠕变，更增加了其对抗冲击、压力、弯曲和强度的能力，具有更强的承受力，比普通的工程塑料管道能承受更高的水压，经测试后能达到6Mpa，且超高分子量聚乙烯复合管不怕磕碰，衬里不会破裂，特别适用于一些环境恶劣的高压输送管路设备。
      （3）保温性好由于超高分子量聚乙烯管导热系数比钢材小1000多倍，可大大降低管路输送保温要求，其温度性能在-50℃到80℃的环境下使用性能良好，这对于寒冷地带流体输送具有重大意义。
      （4）使用寿命长
      超高分子量聚乙烯耐磨管道集两种管材优点和特点于一身，大大提高了使用寿命，目前是其它管材不可比拟的高新技术产品。
      （5）安装简便
      超高分子量聚乙烯耐磨管道主要采用法兰连接，易拆、易卸，安装方便，管节连接处不加任何防腐密封，减少了管路中的故障点，便于维修，大大降低了安装和维修费用，提高经济效益。
      （6）可循环使用
      钢管仅需一次性投资，可将用过的旧钢管修复后衬上超高分子量聚乙烯管层继续使用，每衬一次超高分子量聚乙烯管层相当于金属管寿命的4-5倍。又进一步节约了资金。

Shandong Keli New Materials Co., Ltd. is located in National High-Tech Development Zone in Zibo of Shandong province, covering 100 acres, with 20 million registered capitals, mainly produces high molecular weight polyethylene products. The first processing capacity is 2700 tons per year and the second processing capacity is 5,400 tons per year with a total investment of about one billion Yuan. It was certificated by ISO9001 quality management system in 2010.

There are series of products in the company, four of which are patented products and some are designed first in the world reaching the world advanced level. The main products and features are:

Ultra-high molecular weight polyethylene pipe with diameter of 63-1100mm and the minimum wall thickness of 3mm ; Ultra-thin tube is national initiative;

• Ultra-high molecular weight polyethylene composite reinforced pipe (UHMWPE, wire and HIPVC) raises the pressure capacity rating of the ultra-high molecular weight polyethylene pipe more than one times reaching the world's first industrial production line;

• Ultra-high molecular weight polyethylene plastic composite pipe;

• Ultra-high molecular weight polyethylene plastic composite pipe, the patented product;

• Ultra-high molecular weight polyethylene extruded plank with thickness of 5-20mm and width of 500 mm, also welding according to customers’ needs and intercepting the length according to customers’  demand;

• Corrosion resistant butterfly valve, wedge gate valves, knife gate, initiative in the world;

• High wear resistant impeller pump.

  
  

The unique company welding technology and equipments enable weld of ultra-high molecular weight polyethylene pipe, butt weld and vertical weld of plank, and weld of complex shaped products. The weld strength is equal to or greater than the material strength.

The company combines research and development, production and services together, forming a talent team led by the first-class experts of high molecular weight polyethylene processing, including 6 doctor professors and 3 senior engineers. Besides, there are more than 8 people with master degrees or above. It can provide users with detailed and thoughtful service: ① provide solutions according to their existent pipeline, pump, valve problems; ② providing special design of piping, pumps, valves according to their needs; ③ using a special formula (such as temperature, high wear, etc.) to produce pipeline, pumps and valves meeting the special requirements according to the their medium and working conditions.

The company is the holding company of Shandong Qilu Keli Chemical Institute Co., Ltd. which formerly was the technology industry of Sinopec institute of Qilu branch. In the implementation of “reform stream” in 2007, holding company of China Petroleum authorized Qilu Company to signed the “the agreement of technology and intellectual property use” with us and to cooperate in technology and product markets  for long-term. It began to participate in high molecular weight polyethylene slurry synthesis technology development in 1997, achieving production capacity of 3,000 tons per year in 2004. The company is a National High-tech Enterprise, Shandong Academy Workstation, Shandong Province Joint Graduate Training Base, Zibo City Integrity Enterprise, Zibo City Innovation and Growing-up Industrial Enterprise, Zibo Excellent High-tech Industrial Enterprise in the top thirty, Zibo High-tech Zone Technology-based high-growth small medium enterprise.

Taking technical innovation as the driving force and processing technology development of ultra high molecular weight polyethylene as the core, in accordance with the development strategy of “standardization, specialization, complete, large-scale”, the company will focus on building itself the most advanced processing technology ultra-high molecular weight polyethylene research center and the largest domestic processing base of ultra-high molecular weight polyethylene.