EDS Dry Screw Vacuum Pumps

The high pumping speeds give more throughput when required. Quick pump down times with higher roughing speeds get the job done quicker with unparalleled uptime.To get more news about Screw pump rotor, you can visit hw-screwpump.com official website.

Innovative and sturdy screw design
The plug and play system and the tapered variable pitch dry screws creates a new benchmark in the screw pump market. This is an intricate piece of engineering with a high tolerance for particulates.

Flexible and safe
The EDS range is safe for use in hazardous environments and is certified to global explosion standards. The pumps high tolerance for particulates make them particularly safe and flexible for the chemical processing industry.

Multiple variants available
Available in water-cooled and air-blasted variants, the EDS range have second-to-none contaminant handling capabilities in the harshest industrial conditions and dirtiest industrial installations.
The EDS is ideally suited for most application with specific variants tailored for the chemical and industrial markets, with a particular focus on the fine chemical and pharmaceutical markets. A few applications include:

Whether lubricating liquids, high viscosities, or hygienic demands: Screw pumps handle media gently, efficiently, and with low pulsation. As a helical cut variant of the gear pump, they are a kind of positive displacement pump. With their unique design, they have some special features.

Screw pumps get their name from the two or three displacing elements, which rotate against one another and have a form similar to the shape of a spindle screw. These self-priming pumps are also called screw pumps, screw compressors or spiral plunger pumps.

The spindle screws rotate against one another in the pump casing. Only one of the spindles is driven. It transfers the torque via a thin hydrodynamic film to one or several rotating, interlocked spindles. Screw pumps that handle non-lubricating liquids or liquids that contain solids require an additional drive that synchronizes the spindles with one another.

Since the spindles are shaped regularly and in the form of a thread, they interlock as gears do. The hollow spaces created are also called cavities; these serve to convey the liquids to be pumped: When the spindles turn, they move the fluid handled within the chambers from the suction side to the pressure side.

The design of screws and casing, which are matched to one another, ensures a hydraulic balance of the high axial and radial forces that occur as well as the long service life of the pump. Handling works in both directions: With the simple reversing of the drive, the handling path can be changed. Depending on the application, there is another advantage: Screw pumps work very quietly.