Diaphragm valves are bidirectional in nature and can be used for on and off throttling valves. It was originally developed for industrial use and with further development it was adapted by the bio-pharmaceutical industry with the use of materials that can sustain any conditions. Technically, there are two main categories of diaphragm valve, one type seals over saddle and the other seals over a seat.
The saddle is the most typical type and the most common in process applications whereas the seat type is more commonly used in slurry applications to minimize blocking issues. Diaphragm valves can be manual or automated. Their application is generally shut-off valves in process systems within various countries. Older generation of these valves is not recommended for regulating & controlling process flows. However, advancements in this area have successfully resolved this problem.
The actuators used in a diaphragm are controlled by various types. For instance, manual pneumatic, hydraulic electric etc., and the most common type used is pneumatic actuators. In this type of valve, air pressure the pilot valve experiences the pressure and in return it raises the diaphragm to open the valve. In scenarios where valve speed accounts the most, pneumatic actuators are used extensively.
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The advantages associated the diaphragm valve includes removal of steam leakage, enables bubble-tight services, offers good chemical resistance owing to variety of linings available. Also, valves are particularly suitable to air-pack the hazardous chemicals and radioactive fluids and the valves do not permit contamination of flow medium which enables their extensive use in food processing, pharmaceutical, brewing and other applications that are unable to control any contamination. Disadvantages include saddle type may prevent full drainage of piping, diaphragm limits the hydrostatic pressure, and it may experience erosion while using extensively in severe throttling services.
The key driving factors responsible for the growth of diaphragm valve market include growth in industrial applications for demineralizing water systems. Additionally, growth in radwaste systems in nuclear facilities and augmenting household service such as vacuum service and food processing is contributing to the market growth in the assessment period.
On the basis of product type, the global diaphragm valve market is segmented into stainless steel diaphragm valve, cast iron diaphragm valve and plastic diaphragm valve. On the basis of applications, the global diaphragm valve market is segmented into industrial, food & beverage, pharmaceutical and biotech.
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On the basis of material type, the global diaphragm valve market is segmented into unlined or rubber line type and fluorine plastic type. Unlined or rubber line type is further segmented into natural rubber, EPDM, FKM and silicone rubber. Fluorine plastic type is further segmented into FEP with EPDM backing, PTFE with EPDM backing and PFA with EPDM backing.
On the basis of geographic segmentation, the global diaphragm valve market spans North America, Europe, China, Japan, Southeast Asia and India. North America is anticipated to grow at a higher CAGR during the forecast period. APAC regions are also predicted to witness a double-digit CAGR during the assessment period owing to increasing startups in the manufacturing sector.
The key players in the global diaphragm valve market include Saunders, NDV, Alfa Laval, George Fischer, Parker Hannifin, GEMU, Aquasyn, KITZ SCT, Marcworks, Hylok, ENG Valves (ITT), Top Line Process, Shanghai Lianggong, BVMG, Rodaff Fluid Tech, Shanghai REMY, City Valve Factory, Hong Ke, Enine Corporation, Liang Jing, CNNC Sufa, and Shanghai Lizao.
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