Diaphragm pump a type of positive displacement pump is also referred to as Membrane pump or Air operated Double Diaphragm Pump (AODD).These pumps displace fluids at a constant rate and volume .It functions by holding a fixed amount of liquid in it and then disperse it through an outlet. They are air driven pumps with an air distribution valve and a pilot valve located in the center section. Liquid through a diaphragm pump usually moves through two manifolds .The market for Diaphragm pumps faces competition mainly from centrifugal pumps market. These pumps are preferred owing to their ability to exhibit high performance when dealing with fluids that have high viscosity and handle change in pressure. They can handle corrosive fluids and maintain high level hygiene standards efficiently.
Diaphragm pump product segment comprises of Air operated diaphragm pumps, Mechanical diaphragm pumps and Hydraulic diaphragm pumps. The end user market include oil and gas market, food and beverage, water and waste water, chemicals, power generation, pharmaceuticals. Other applications include agriculture, automotive, marine etc. Diaphragm pumps can efficiently deal with corrosive fluids and thus help maintain hygiene. Water treatment industry remains the largest buyer for this market followed by oil and gas industry and chemical industry.
Diaphragm pumps exhibit increased market growth owing to less maintenance and high accuracy. Rise in demand for air operated diaphragm pump and metering pump is expected to drive the global market. High demand for environment friendly waste water treatment and disposal along with increased infrastructure modernization will spur the market growth. In addition, demand for automation into processes along with stringent environment related regulations is likely to drive the market.
Diaphragm market is expected to grow as result of economic development and expansion of manufacturing bases coupled with FDI in Asia-Pacific. Low cost raw material availability and rise in end use industry application owing to high domestic as well as foreign investment is expected to drive market in China. On the other hand the U.S diaphragm market is an industry leader owing to advancement in technology and precision in its operations. However, end user market saturation and increasing demand for centrifugal pump market might restrain the market growth for diaphragm pumps. Additionally, technological innovations and large investments in R&D operations will propel the market growth.
The key market players include Delta Group, Del PD pumps, Hermetic, Verderair etc. Some other manufactures include Milton Roy, Idex Corp, Grundfos Water Treatment GmbH etc
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