Vacuum Catalogue - Edwards

Vapour Pumps for Scientific Instruments and R&D ApplicationsData summary vapour pumps3Page130Pump 63/150M 63/150C63/150PPumping speed (M&P/C)Nitrogen l s -1 135 150Hydrogen l s -1 200 225Minimum backing m 3 h -1 5 5pump displacement *Inlet connection ISO63 ISO63Backing connection NW10 NW10Scientific and R&D applications require special vapour pumps andaccessories. It is important to minimize any backstreaming of thevapour pump fluid, and the number of elastomer seals used in systemdesign needs to be kept to a minimum, to give clean pumping withOil charge capacityHeater PowerWeight (M&P/C)60 ml450 W9 kg / 5 kg60 ml450 W9 kg / 5 kgminimal outgassing. For bench-top or transportable instruments,Pump 100/300M 100/300Ccompact air-cooled pumps are essential.100/300P 100/300FEdwards offers a range of vapour pumps and accessories which aredesigned to meet these needs.Diffstak Vapour Diffusion PumpsThe compact water-cooled Diffstak pumps with an integral cooledbaffle offer exceptionally clean pumping with very low backstreaming,reduced outgassing, and a reduction in the number of elastomerseals required for installation.The Diffstak design has been proven over many years with thousandsof pumps installed. They are supplied in two types: standard, andunvalved. (C – collar model pumps).Pumping speed (M&P/C)NitrogenHydrogenMinimum backingpump displacement *Inlet connectionBacking connectionOil charge capacityHeater Powerl s -1l s -1m 3 h -1 2805005ISO100NW25125 ml650 W3005355ISO100 / 6inchNW25125 ml650 WThe Edwards Diffstak 63 (ISO 63 inlet), 100 (ISO100 inlet), 160Weight (M/P/C/F) 12 kg / 13 kg / 12 kg / 13 kg /(ISO160 inlet), 250 (ISO250 inlet), design has been proven over9 kg / 10 kg 9 kg / 10 kgmany years with thousands of pumps installed.The standard Diffstak pumps have integral high vacuum valves and Pump 160/700M 160/700Cwater-cooled baffles, which are supplied as either manually operated160/700P 160/700F(M-model pumps) or pneumatically operated (P-model pumps).Pumping speed (M&P/C)When comparing pumping speeds, note that the speeds quoted forNitrogen l s -1 700 760valved Diffstaks are the speeds above the high vacuum valve, takingHydrogenfull account of the valve's impedance.l s -1 1300 1410The unvalved Diffstaks are for systems requiring the highest possibleMinimum backing m 3 h -1 12 12pump displacementultimate vacuum or for those which do not need a high vacuum valve.All sizes are available with ISO flanges while two sizes are alsoInlet connection ISO160 ISO160 / 8available with CF flanges. (F – ConFlat ® model pump).inchThe complete range is shown in the table below. Refer to thefollowing pages for full technical data for each of the pumps and alsofor full details of installations, spares and accessoriesBacking connectionOil charge capacityHeater PowerNW25250 ml1350 WNW25250 ml1350 WStandardUnvalved DiffstakWeight (M/P/C/F) 26 kg / 27 kg / 26 kg / 27 kg /18 kg / 20 kg 18 kg / 20 kgDiffstak ISO Flange CF Flange63/150M or P 63/150C –Pump 250/2000M 250/2000C100/300M or P 100/300C 100/300F250/2000P160/700M or P 160/700C 160/700FPumping speed (M&P/C)250/2000M or P 250/2000C –Nitrogen l s -1 2000 2130Hydrogen l s -1 3000 3200The following table shows the critical backing and ultimate pressuresMinimum backing mfor the diffusion pump range:h -1 40 40pump displacement *Critical Backing Ultimate Pressure Inlet connection ISO250 ISO250PressureBacking connection NW40 NW40Fluid (mbar) (mbar)Oil charge capacity 500 ml 500 mlSantovac ® 5 0.6 5 × 10 -9Heater Power 2250 W 2250 WSilicone 702 1.2 7 × 10 -6Weight (M/P/C) 59 kg / 60 kg / 59 kg / 60 kg /Silicone 704 0.8 7 × 10 -846 kg 46 kgConFlat ® is a registered trademark of Varian, IncSantovac ® is a registered trademark of Santovac Fluids, Inc, USAShop online at www.edwardsvacuum.com*. For maximum throughput. (63/150M and 63/150P – For applications where maximumthroughput is not required, use an RV3.)