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Edwards 3 Rotary Vane Vacuum Pump Model: RV8**This unit has been tested to specifications. Vacuum pressure at 2 microns (Pressure gauge not included). Has slight cosmetic blemishes from normal use. See photos for further detailsThe RV series of small oil sealed rotary vane pumps deliver excellent ultimate vacuum pressure, high pumping speeds and superior vapour handling capabilities with quiet operation. With over 300,000 units produced, these pumps offer proven performance that sets the industry standard for R&D and scientific pumping applications. All RV pumps are approved to UL and CSA standards by an external test house and feature our unique mode selector switch, meaning one model is suitable for both high vacuum or high throughput applications.Pump valve has controlled opening on power startup so that the system vacuum will never see a pressure surge on startupThe RV uses a high-quality universal motor to cover the widest possible voltage and frequency range.A one-size Allen key is used to dismantle all parts of the RV pump. All rotor and stator parts are completely interchangeable50Hz9.7 m3h-1 / 5.7 ft 3min-160Hz11.7 m3h-1 / 6.9ft3min-150Hz8.5 m3h-1 / 5 ft 3min-160Hz10 m3h-1 / 5.9 ft 3min-1Ultimate pressure2 x 10-3 mbar / 1.5 x 10-3 TorrUltimate pressure GB I3 x 10-2 mbar / 2.3 x 10-2 TorrUltimate pressure GB II6 x 10-2 mbar / 4.6 x 10-2 TorrUltimate pressure with Fomblin2 x 10-2 mbar / 1.5 x 10-2 TorrMax inlet pressure for water vapour38 mbar / 28.5 TorrMax water vapour pumping rate GB I60 gh-1Max water vapour pumping rate GB II220 gh-1Max allowed outlet pressure0.2 bar gauge / 2.8 psigMax allowed inlet and gas ballast pressure0.5 bar gauge / 7 psigMotor power 50/60Hz450 / 550WPower connector 1-phIEC EN60320 C13Nominal rotation speed 50/60Hz1500 / 1800rpmOil capacity min/max0.45 / 0.75 litresRecommended oilUltragrade 19Inlet flangeNW25Exhaust flangeNW25Noise level48 dB(A) @ 50 HzOperating temperature range12 40 CElectrical Supply1 Ph, 100-120/200-230 VAC 50/60 HzAdditional Prep Fees May Apply