Rotary jet pump development history, working principle, structure, characteristics, applications made a more comprehensive introduction. Rotary jet pump structure principle is 1923 by F. W. Krogh suggested that he promoted the Pitot tube principle to the design of the pump so it was called a Pitot pump. The first pump developed using pitot tube principle is open and has many drawbacks. Until the 1920s; people have developed a closed Pitot pump. After the outbreak of World War II, Germany and Britain began to develop rotary jet pumps for the development of rockets and missiles. With the end of World War II, rotary jet pump research fell into a downturn. Until the 1960s, people invented the enclosed runner and the cover, which formed a radial rotating impeller to make the rotary jet pump began to develop and eventually formed the current Pitot-tube principle of jet pump model. At this point, a multitude of industries need a stable, high-pressure pump that can adjust flow rates and work on a full range of lift curves. Such high-pressure pumps are required for cleaning systems in the food industry, and rotary jet pumps happen to meet this requirement. Such cleaning systems are found everywhere in the food industry, such as meat packaging, brewing, canning of fruits and vegetables, and beverage processing. In addition, pumps with such operating characteristics are needed in the paper industry, petrochemical and refinery, and power plants. In this context, the patented rotary jet pump appeared in the United States in the 1960s. By the 1970s, Kobe Corporation produced the first commercial rotary jet pump, and since then rotary jet pumps have started to go to the market and are gradually accepted. In the 1970s and 1980s, there was a worldwide patent climax on rotary jet pumps. Abroad, rotary jet pump has been more satisfactory performance.
CaF2 Window
Calcium fluoride is often used in spectroscopic windows and lenses due to its high transmission from 250nm to 7μm.
Calcium Fluoride (CaF2) Windows commonly used in cryogenically cooled thermal imaging systems.Calcium Fluoride (CaF2) windows for IR and UV applications. Other calcium fluoride (CaF2) components include CaF2 lenses, mirrors, prisms are available
Calcium Fluoride Optical Window
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High average transmittance
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Low chormatic aberrations
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Ideal for UV to NIR applications (180 nm to 8 µm)
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Availabe in 9 sizes from 5.0 mm to 50.0 mm diameter
It is a relatively hard material with extremely low bubble and inclusion content, while providing excellent transmittance through-out the visible and near infrared spectra and down to 350 nm in the ultraviolet.
The material can be Schott, or CDGM optical glass serious. They are low distortion, low scatter, and could be for laser and non-laser applications.
Caf2 Window,Calcium Fluoride Windows,Caf2 Circular Windows,Caf2 Infrared Window
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