Product Description GWSP Oil free Scroll Vacuum Pump Working principle: GWSP oil free scroll vacuum pump is constructed with pump head assembly, crank pin assembly, bracket assembly, air flush assembly,and exhaust valve assembly.Two spiral cylinders, one offset and orbiting against the other fixed with an offset of 180° to form several crescent-shaped pockets of different sizes. By means of an eccentric drive, the orbiting scroll is made to orbit about the fixed scroll, reducing the volume of the pockets and compressing gas from outside towards the inside thereby pumping the gas from vacuum chamber. Basic informations: 1) Model: GWSP75 Oil free scroll vacuum pump 2) Ultimate vacuum pressure: 8.0Pa/0.08 mbar (abs.) 3) Max suction capacity: 50Hz-1.0L/s 60Hz-1.2L/s Safety Precautions: The GWSP series oil free scroll vacuum pumps are suitable for clean processes only. Do not pump toxic, explosive, flammable or corrosive substances or substances which contain chemicals, solvents or particles.GEOWELL will not perform maintenance work on pumps which have used special gases or other hazardous substances. Be sure the inlet gas temperature must be lower than 122 °F. Technical Specifications Model GWSP40 GWSP75 GWSP150 GWSP300 GWSP600 GWSP1000 Pumping Speed 50Hz l/s 0.5 1.0 2.0 4.3 8.7 16.6 m3/h 1.8 3.6 7.2 15.5 31.3 59.8 cfm 1.1 2.1 4.3 9.3 18.7 35.8 60Hz l/s 0.6 1.2 2.4 5.1 10.4 20.0 m3/h 2.2 4.3 8.6 18.3 37.4 71.6 cfm 1.3 2.5 5.1 10.9 22.3 42.8 Ultimate Pressure Torr ≤1.1*10-1 ≤6.0*10-2 ≤4.5*10-2 ≤1.9*10-2 ≤7.5*10-3 ≤7.5*10-3 psi ≤2.2*10-3 ≤1.2*10-3 ≤9.0*10-4 ≤3.8*10-4 ≤1.5*10-4 ≤1.5*10-4 Pa ≤15 ≤8 ≤6 ≤2.6 ≤1 ≤1 mbar ≤1.5*10-1 ≤8.0*10-2 ≤6.0*10-2 ≤2.6*10-2 ≤1.0*10-2 ≤1.0*10-2 Noise Level dB(A) ≤54 ≤57 ≤57 ≤60 ≤61 ≤65 Leakage mbar·l/s 1*10-7 Max. Inlet/Exhaust Pressure MPa 0.1 / 0.13 Ambient Operation Temp. ºF 41~104 Motor 1 phase Power kW 0.25 0.55 0.55 0.55 0.75 -- Voltage V 110~115 (60Hz),200~230 (50Hz) -- Speed rpm 1425(50Hz),1725(60Hz) -- Plug North America, Europe, UK/Ireland, India -- Motor 3 phase Power kW -- 0.55 0.55 0.55 0.75 1.5 Voltage V -- 200~230 or 380~415 (50Hz),200~230 or 460 (60Hz) Speed rpm -- 1425 (50Hz),1725 (60Hz) Inlet/Exhaust Flange KF25/KF16 KF40/KF16 KF40/KF16*2 Dimensions 1 phase mm 326*212*253 450*260*296 455*260*296 493*297*334 538*315*348 -- 3 phase mm -- 450*260*296 455*260*296 493*297*334 538*315*348 576*450*402 Net Weight 1 phase kg 15 21 22 29 36 -- 3 phase kg -- 20 21 28 31 54 Cooling Type Air cooled Others With air flush Features & Benefits No oil clean vacuum. No oil back-diffusion, no oil mist exhaust, provide clean vacuum environment Wide product lineup. Pumping speed covers 3~60 m3 /h, limited vacuum level 1~8 Pa Suitable for all type of power supply around the world. 110/220/380/460V, 50/60Hz for choose Low vibration, low noise. 57~65 dB(A), smooth operation High efficiency, ease of maintenance. No water cooled, no oil lubricated, no daily maintenance Quality Control CMM inspection system assures fixed tolarance on dimension&shape Pump Testing Applications Analyzing instrument and device. Spectroscopy/scanning electron microscopy. Space environment simulation machine. Helium Leak detector. Mass spectrometer. Cryopump regeneration. Accelerators/synchrotrons. Food and drug industry. Freezing dryer. Vacuum storage. Medical equipment Low temperat