First understand the working principle of the screw pump, there is a dynamic schematic online you can click to watch:
Does anyone know the screw pump?
Screw pump brand, according to online searches, the following information for reference:
Screw pumps domestic brands
1, Shanghai Zhongcheng Pump CNSP
Shanghai Zhongcheng Pump Industry Manufacturing Co. "CNSP" Zhongcheng pump industry is a well-known brand in the screw pump industry.
2, Huangshan Industrial Pump RSP
Huangshan Industrial Pump Manufacturing Co., Ltd. is mainly engaged in the provision of single-screw pumps, twin-screw pumps and three-screw pumps three major categories of products, the creation of the "yellow pump" and "RSP" screw pump professional brand.
3, Tianjin Pump Industry Machinery Group CTP
Tianjin Pump Industry Machinery Group Limited is the birthplace of China's first screw pump. The main products are single, double and triple screw pumps.
4, Hangzhou Xinglong Pump
Xinglong Pump is headquartered in the northern suburbs of Hangzhou, Liangzhu culture birthplace of the bottle kiln town. Enterprises is the national screw pump professional committee vice chairman of the unit, one of the drafters of a number of screw pump standards. The screw pump for coal water slurry produced by the enterprise has won many national patents.
5, Chongqing Pearl
Chongqing Pearl Electromechanical Co., Ltd. is a state-recognized high-tech enterprises, specializing in screw pumps and rotor pumps and related products, research and development, production and sales, is one of the domestic screw pump industry standards. The main products include: single screw pumps, twin screw pumps, rotor pumps.
Screw pump foreign brands
1, Germany Netzsch
Headquartered in Bavaria, Germany, Netzsch Group has more than 130 years of history, is the world's leading machinery manufacturing group. The main products of Netzsch (Lanzhou) Pumps Co., Ltd (NLP), a wholly-owned enterprise of Netzsch Group in China, are progressive cavity pumps.NLP adopts the advanced technology and scientific management mode of Germany, and with the help of computerized ERP network management system and advanced imported numerical control rotor machining equipments, NLP carries out the design, production, sales and service of NEMO pumps (i.e., progressive cavity pumps) in accordance with Netzsch's standards in Germany.
2, Germany Seepex Seepex
Seepex seepex company's headquarters is located in central Germany, Portlope, created by Fritz Seeberger in 1972, is mainly engaged in the research and development and production of progressive cavity pumps, crushing and cutting machines and control systems and in the global scope of sales and after-sales service, with a number of single-screw innovation and patented technology. The company owns a number of innovations and patents for single screw technology. With more than 630 employees worldwide, the company has become a leading supplier of fluid material handling and processing equipment. 2004 saw the establishment of the third global manufacturing center in Shanghai's Nanhui Industrial Park in Pudong, China, to provide even better service to customers in China.
3, Britain Mono Mono
Britain Mono Mono group headquarters and the main manufacturing plant is located in Manchester, England. The plant is mainly responsible for the production of progressive cavity pumps, components, grinding machines, screens and oilfield products. Mono pumps were successfully developed in London in 1935. The Mono pump was developed in London in 1935 and has remained an industry leader in the design and manufacture of this pump category. 2002 saw the start of production of general purpose components for progressive cavity pumps, and 2004 saw the start of operations at the manufacturing site in the Jiading Madong Industrial Park in Shanghai. 2003 saw the acquisition of Mono by National Oilwell Varco (NOV).
4, Germany Leistritz Leistritz (also translated as: Leistritz)
Germany Leistritz company was founded in 1905, headquartered in Nuremberg, Germany, is the world's largest multi-screw pump manufacturers. Its products include twin-screw pumps, three-screw pumps and five-screw pumps.2004 Leistritz established Leistritz Machinery (Taicang) Co.
5, the United States Colfax Colfax
The United States Colfax Pumps Group is currently the world's pump industry's leading manufacturers of industrial pumps and fluid control systems, but also the world's largest manufacturer of screw pumps. Its leading products include three-screw pumps, twin-screw pumps, and single-screw pumps, and it owns the world's well-known brands in the pump industry, including Allweiler, Imo Pump, Houttuin, Warren, and Zenith.In 2004, it invested in the National High-Tech Development Zone in Wuxi, Jiangsu Province, and set up the Wuxi Colfax Pumps Co.
6, Germany Bornemann bornemann
Germany Bornemann Bornemann is located in Hannover, Germany, Oberkochen, was founded in 1853. External bearing twin-screw pump in 1934 applied for a number of patents. 1960 and the successful development of three-screw pumps, 1966 is the eccentric screw pump, 1985 for the multi-phase pump. Today, the main products are twin screw pumps. 2004 August in the Tianjin Economic-Technological Development Area set up a production of wholly-owned subsidiary: Bornemann Pump Systems (Tianjin) Co., Ltd. and in September 2005 formally put into production. 2012 Germany Bornemann Pumps by the U.S. ITT Pumps Group with 267 million U.S. dollars to buy, become a member of the ITT pumps empire.
The above is the domestic and foreign mainstream screw pump brand introduction, comprehensive look at the foreign brand screw pump quality is better, but the price is also super expensive; domestic independent brand screw pump part of the manufacturers in the industry has also formed a characteristic, trustworthy. But those cheap goods on the market is best not to buy.