Drystar 80 SSP & Silencer

Edwards DRYSTAR 80 dry vacuum pump is configured for easy of installation and commissioning while providing a clean, robust and cost effective alternative to traditional oil-sealed pumps.

Features and Benefits

  • Extended periods between user intervention to achieve maximum uptime
  • No exhaust filters to service offering lower consumable cost and inventory
  • Available in hydrocarbon or PFPE fluid (for oxygen) versions making it suitable for a wide range of applications and environments
  • Continuous pumping from atmosphere
  • Consistent performance in demanding applications


  • Vacuum metallurgy processes
  • Heat treatment carburisation
  • Thin film coating technologies
  • Pharmaceutical freeze drying
  • Refrigeration and air conditioning system evacuation, drying, and backfilling
Technical data  
Peak Pumping Speed 50 Hz 80 m3h-1 (47 cfm)
Peak Pumping Speed 60 Hz 94 m3h-1  (56 cfm)
Ultimate Pressure <3x10-2 mbar (<2x10-2 Torr)
Power @ ultimate pressure 3.6 kW (4.8 hp)
Power @ peak pumping load 5.8 kW (7.8 hp)
Electrical supply 200-230V 3Æ 50/60Hz  or  380-460V 3Æ 50/60Hz
Inlet connection ISO40
Outlet connection NW40
Cooling method Water
Cooling Water flow rate 1 lmin-1 (0.26 galmin-1)
Max cooling Water supply pressure 8 bar (116 psig)
Cooling Water DP across pump 2.1 bar (30 psig)
Cooling Water temp 5-35 °C (41-95 °F)
Cooling Water inlet ½” Quick connect coupling
Cooling Water outlet ½” Quick connect plug
Purge gas pressure 0.5 bar (6-8 psig)
Purge gas light duty 15 slm
Purge gas connection ¼” Quick connect coupling
Weight 145 kg (320 lbs)
Noise (with exhaust silencer)  
Exhaust back pressure 1.3 bar (18 psig)
Lubrication volume 0.4 l (0.1 gal)
Hydrocarbon lubrication SHC629
PFPE lubrication YVAC 25/6