EDSE & EDSV Series Dry Screw Vacuum Pump
EDSE & EDSV Series Dry Screw Vacuum Pump
Product Features and Applications
Key Features:
Oil-free and water-free, dry running makes clean vacuum.
Ultimate vacuum can reach as low as 2Pa (50Hz) and 1Pa (60Hz).
Quiet operation equipped with a special silencer.
No metal contact between the screw and casing for a long lifespan.
Easy operation and maintenance.
Capabilities: Can pump condensable vapors, and when equipped with a purging system, it can pump gas with oil vapor or residue.
Main Applications: Widely used in chemical application, pharmaceutical processing, solvent recovery, crystallization, vacuum coating, petroleum, and the semiconductor market.
Technical Comparisons: EDSE vs. EDSV
Design: EDSE is a same pitch screw pump, while EDSV is a variable pitch screw pump.
Vacuum Speed: EDSV reaches high vacuum more slowly than EDSE.
Operational Limits: EDSV cannot operate between 1ATM to 10,000 Pa for long periods due to high load. It is recommended for working vacuum degrees between 10,000 Pa and its ultimate vacuum.
Energy Consumption: EDSV has lower energy consumption as it approaches ultimate vacuum due to a lower load. The opposite is true for the EDSE series.
Special Model: EDSE-300A
The motor is separated from the gearbox, allowing for specific motor brands to be used.
It is small in size and suitable for industries with low vacuum requirements like plastic blister, packaging, and egg tray industries.
Material Option: Titanium Alloy
Purpose: Designed for special applications under strong corrosion conditions.
Properties: High corrosion resistance, high strength, and good stability.
Mechanism: A dense oxide film forms on the surface of the titanium alloy, providing strong resistance for internal parts.
Suitable Media: Effective for pumping hydrogen chloride, nitric acid, organic acids, alkali, and inorganic salts.
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