Machine Design

Screw-Type Vacuum Pump

The ScrewLine SP250 oil-free gascompression screw-type vacuum pump supports applications that require varying pumping speeds in the same plant.

An alternative to oil-sealed piston vacuum pumps, the units reportedly require less maintenance and eliminate contamination of back-oil migration and emissions. Other advantages include elimination of contaminated waste water through air cooling, less particle deflection and buildup with screw-compression stage, and the ability to accommodate boosters for higher speeds at lower pressures.

Leybold Vacuum USA, 5700 Mellon Rd., Export, PA 15632, (800) 764-5369,

Hide comments


  • Allowed HTML tags: <em> <strong> <blockquote> <br> <p>

Plain text

  • No HTML tags allowed.
  • Web page addresses and e-mail addresses turn into links automatically.
  • Lines and paragraphs break automatically.