What is the ranking of the top 10 progressive cavity pumps? More detailed?

From the perspective of parts replacement and maintenance, Sunshine Pump Industry saves more than 90% of manpower, material and financial resources compared with traditional pumps. Progressing cavity pump – A pump in which a single screw engages and rotates in an internal threaded groove in the pump body. Twin screw pump – a pump in which two screws mesh with each other to convey liquid.

Triple screw pump – a pump in which multiple screws mesh with each other to transport liquids.

Sunshine (China's well-known trademark, Shanghai famous brand products, good performance in municipal, construction, HVAC, power plant and other fields, Shanghai Sunshine Pump Industry Manufacturing).

Liancheng (China's well-known trademark, stainless steel pump quality is good, in the chemical, steel, food, hydropower and other fields of good performance, Shanghai Liancheng (Group) ****).

Kaiquan (China's well-known trademark, Shanghai's famous trademark, good performance in municipal, construction, HVAC, power plant and other fields, Shanghai Kaiquan Pump Industry (Group)****).

Nanfang (China's well-known trademark, Zhejiang Province's famous trademark, special pump, stainless steel multi-stage pump is very good, Nanfang Pump Industry Co., Ltd.).

Dongfang (a famous trademark in Shanghai, with a large sales volume in the construction field in the past two years, Shanghai Dongfang Pump Industry (Group)****).

Boshan (well-known trademark, famous trademark in Shandong Province, good performance in steel, electricity, coal and other fields, Shandong Bo Pump Technology Co., Ltd.).

New Territories (China Famous Trademark, Zhejiang Famous Brand, Leading Enterprise in Agricultural Water Pump Industry, Zhejiang New Territories Pump Industry Co., Ltd.).

Panda (a famous trademark in Shanghai, with a large sales volume in the construction field in the past two years, Shanghai Panda Machinery (Group)****).

Shuanglun (China's well-known trademark, Shandong Province's famous trademark, in the oilfield, petrochemical, mining, thermal power and other fields of good performance, Shandong Shuanglun shares).

Kenfulai (Guangdong Province Famous Trademark, Guangdong Province Famous Brand, Founder of Liquid Ring Vacuum Pump, Guangdong Province Foshan Water Pump Factory****).

Here are some of the well-known brands recognized in the water pump valve industry, which are widely recognized and have a great reputation. While rankings may vary depending on time and market conditions, the following brands are generally considered to be among the top brands in the valve industry:

The following influential first-line brands of water system valves and industrial valves can be used as a reference, but for reference only: Suzhou Neway Valve Zen Belt Door, Shanghai Guanlong Valve, Shanghai Qizhong Valve, Sanhua, Chaoda, Shentong, Su Valve, Nanfang, Jiang.

First, the word Yao. The above manufacturers are only estimates and references, and the specific situation may vary or fluctuate at any time due to changes in a series of factors such as changes in the market, the size of the competition pattern, and the stability of product quality. As an indispensable key device in industrial production and civil facilities, the quality and reputation of the valve brand directly affect the satisfaction and trust of users.

These brands are known in the valve industry for their innovative technology, high-quality products and reliability. It is important to note that the market and industry are evolving rapidly, and different rankings may vary depending on time and region. For the latest ranking information, it is recommended to refer to industry reports, professional Hehenglu institutions or market research data for more detailed and accurate information.

1. Shanghai Shenquan Pump Industry.

Shanghai Shenquan Pump & Valve Manufacturing Co., Ltd. is a manufacturer specializing in the production and sales of pipeline pumps, sewage pumps, fire pumps, chemical pumps and other water supply and drainage equipment, whose products involve industrial and mining enterprises, agriculture, urban water supply, petrochemical industry, power station, shipbuilding, metallurgy, high-rise buildings, fire water supply, industrial water treatment and pure water, food, pharmaceutical, boiler, air conditioning circulation system and other industries.

2. Jiangcheng pump industry.

Jiangcheng Pump Branch Stool Industry is headquartered in the beautiful northern suburbs of Beijing, the birthplace of Liangzhu culture. The company is the deputy leader of the National Magnetic Pump Professional Committee and one of the drafters of a number of magnetic pump standards. The coal-water slurry magnetic pump produced by the company has obtained a number of national patents.

3. Excellent pump industry.

Excellence Pump Industry is a high-tech enterprise recognized by the national digging debater, specializing in the research and development, production and sales of magnetic pumps and rotary lobe pumps and related products, and is one of the domestic single magnetic pump industry standard formulation units. The main products include: single magnetic pump, double magnetic pump, rotary lobe pump.

4. Hengli pump industry.

Hengli Pump Industry is the birthplace of China's first oil gear pump. Hengli Pump Industry is a national second-level enterprise focusing on R&D and manufacturing of "Hengli" brand volumetric pumps, a key backbone enterprise in Zhongtong pump industry, a national high-tech enterprise, and a famous brand product enterprise in Hebei Province.

5. Liangtian pump industry.

Liangtian Pump Industry completed the shareholding system transformation in 2000. The company is responsible for the Liangtian water pump"The brand is old and has a good reputation"The existing mission is to reload, forge ahead, always adhere to the quality of its own products and enrich and continuously improve its own product line, the existing products have covered all aspects of water supply and drainage, general industry.

6. Yulian pump industry.

Yulian Pump Industry was established in 1958, and began to develop and produce petroleum magnetic pumps, screw drilling tools and other products in 1990.

7. Xunfeng pump industry.

With a history of nearly 40 years, Xunfeng Pump Industry was successfully transformed in 2002, and is an enterprise that works closely with scientific research institutes, is guided by advanced technology and based on the production equipment of scientific research enterprises. The production of three magnetic pumps, asphalt pumps in petroleum, highway asphalt, chemical, electric power and other industrial sectors have been widely used.

8. Shuanglu water pump.

Shuanglu Water Pump is an enterprise specializing in the research, design, manufacture and service of fluid equipment. The main products are magnetic pumps and other pump products, valves, motors, complete sets of water supply equipment series, which are widely used in municipal, water conservancy, construction, fire protection, electric power, environmental protection, petroleum, chemical, mining and pharmaceutical industries.

9. Huangshan Pump Industry.

Huangshan Pump Manufacturing Co., Ltd. mainly provides three categories of products: single magnetic pump, double magnetic pump and triple magnetic pump, and creates a professional brand of "yellow pump" and "RSP" magnetic pump. It has industry-leading technology research and development capabilities.

10. Shenyang Water Pump Factory was founded in 1932 and is the largest manufacturer in China's pump industry.

Northwest Nonferrous Metals Research Institute Northwestern Polytechnical University to ask.

Shanghai Sunshine brand is the only one that has reached the international line at the domestic level, and is the chairman unit of the National Pump Industry Professional and Technical Committee, and has obtained a number of national patents.

Progressive cavity pump (mechanical engineering term).

Progressive cavity pumps are positive displacement rotary lobe pumps, which rely on the volume change of the sealing cavity formed by the screw and bushing to suck in and discharge liquids. Screw pumps are divided into single, double, triple and five-screw pumps according to the number of screws. The screw pump is characterized by stable flow, small pressure pulsation, self-priming ability, low noise, high efficiency, long life and reliable operation; Its outstanding advantage is that it does not form eddy currents when conveying the medium, and is not sensitive to the viscosity of the medium, and can convey high-viscosity medium.

Introduction: Screw pump is a rotary pump that relies on the meshing space formed by the pump body and the screw to transport liquid or pressurize it. Screw pumps are divided into single screw pumps, twin screw pumps and triple screw pumps according to the number of screws. When the driving screw rotates, the driven screw that drives it to mesh rotates together, and the volume of the screw meshing space at one end of the suction cavity gradually increases, and the pressure decreases.

The liquid enters the meshing space volume under the action of differential pressure. When the volume is increased to the maximum and a sealing chamber is formed, the liquid moves continuously axially in the sealing chamber until it exits the chamber. At this time, the volume of the screw meshing space at one end of the discharge chamber gradually decreases, and the liquid is discharged.

The working principle of progressive cavity pumps is similar to that of gear pumps, except that the gears are replaced by screws in the structure. The table shows the characteristics and application range of various progressive cavity pumps. The flow rate and pressure pulse of the progressive cavity pump are small, the noise and vibration are small, and it has the ability to self-prime, but the screw processing is more difficult.

The pump has two configurations, single suction and double suction, but the progressing cavity pump only has a single suction type. The pump must be equipped with a safety valve (progressing cavity pumps do not have to be equipped with one) to prevent damage to the pump or prime mover due to some reason, such as a clogged discharge pipe that causes the outlet pressure of the pump to exceed the allowable value.

The screw pump had to be bought by Woquan Pump Industry, which was very easy to use, and I didn't find any problems so far.