Dry Screw Vacuum Pump

The Bozhong dry screw vacuum pump features a variable pitch, oil-free dry design, widely used in applications requiring oil-free clean vacuum. With pumping speeds ranging from 100 m³/h to 1000 m³/h and ultimate vacuum levels below 10 Pa, it employs cast iron as the standard material. Fluid-handling components are paired with nickel-phosphorus diffusion coating or Hastelloy, significantly extending screw service life and effectively preventing corrosion and seizure incidents on-site.

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Dry Screw Vacuum Pump

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Bozhong Industry - Vacuum Product Catalog -20225.5

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Detailed introduction

Overview

Bo-Zhong dry screw vacuum pumps feature a variable pitch, oil-free dry design, widely used in applications requiring oil-free clean vacuum. Pumping speeds range from 100 m³/h to 1000 m³/h, with ultimate vacuum <10 Pa.

Standard construction is cast iron, with flow-path components available with nickel-phosphorus or Hastelloy coating options. These coatings significantly extend screw life and effectively prevent corrosion-induced seizure. Stainless steel construction is offered as an option for highly corrosive environments.

The pump features stable operation, low power consumption, high efficiency, and excellent vacuum performance.

Characteristics

■ Compact and simple structure with minimal footprint and easy maintenance.

■ Completely oil-free pump chamber delivers clean vacuum. No wastewater or oil discharge during operation, ensuring zero environmental pollution.

■ Nickel-phosphorus or Hastelloy-coated flow components extend screw lifespan and effectively prevent corrosion and seizure.

■ Smooth operation with high efficiency and low noise.

■ Patented screw cooling technology maintains low pump chamber temperatures, suitable for heat-sensitive media applications and effectively preventing high-temperature polymerization.

■ Standard internal pressure relief structure eliminates over-compression and reduces power loss in high-pressure zones.

■ Compatible with nitrogen purge and solvent cleaning modules for online cleaning functionality.

■ Gas dilution module available to further reduce pump chamber temperature and effectively prevent medium condensation.