The Agilent MS-631 is a high capacity, single stage, oil-sealed rotary vane pump. The MS-631 features an oil recirculation system, an antibackstream valve which prevents system contamination, and carbon composite vanes for extended pump life. Thanks to its low vibration and its air cooling system the MS-631 is an environmentally-friendly alternative to larger industrial pumps with similar speeds but more noise, vibration, and higher cost of ownership.

The Frame Less version allows you to couple a Roots Pump directly to the inlet flange eliminating the need for a frame. Our reliable MS-631 pump is used in combination with diffusion HV pumps in a wide range of industry applications including metallurgy, heat treatment, vacuum coating, e-beam welding, LNG transportation.

Industry leading vacuum performance with a base pressure of 8 x 10-2 mbar (6 x 10-2 torr)
Highly robust for stringent applications
Steel rotor, special design carbon fibers vanes for extended pump life as well as gas ballast valve for pumping high water vapor content
Compact and easy to install thanks to its smaller footprint compared to pumps of same pumping speed
Highly reliable thanks to the highly efficient oil circulation system
Environmentally friendly with its built-in demister system integrated with a floating valve for oil recovery

Part Number Variant

X3753-64004 MS-631FL high capacity rotary vane pump, frameless version can be directly coupled to a roots pump, 465 cfm free air displacement at 60 Hz, 18.5 kW, 60 Hz, 230/460 V, DN 150 DIN2533 inlet, oil charge not included
X3753-64078 MS-631 high capacity rotary vane pump, 465 cfm free air displacement at 60 Hz, 18.5 kW, 60 Hz, 230/460 V, DN 100 ISO-K, oil charge not included
X3753-64079 MS-631 high capacity rotary vane pump, 465 cfm free air displacement at 60 Hz, 18.5 kW, 60 Hz, 220/380 V, 4 in gas inlet, oil charge not included
X3753-64002 MS-631FL high capacity rotary vane pump, frameless version can be directly coupled to a roots pump, 465 cfm free air displacement at 60 Hz, 18.5 kW, 400/690 V at 50 Hz, 460 V at 60 Hz, DN 150 DIN2533 inlet, oil charge not included
X3753-64006 MS-631FL high capacity rotary vane pump, frameless version can be directly coupled to a roots pump, 465 cfm free air displacement at 60 Hz, 18.5 kW, 60 Hz, 220/380 V, DN 150 DIN2533 inlet, oil charge not included
X3753-64073 MS-631 high capacity rotary vane pump, 390 cfm free air displacement at 50 Hz, 15 kW, 50 Hz, 400/690 V, 4 in gas inlet, oil charge not included
X3753-64092 MS-631FL high capacity rotary vane pump, frameless version can be directly coupled to a roots pump, 465 cfm free air displacement at 60 Hz,18.5 kW, 60 Hz, 230/460V, DN150 DIN2533, thermal protection switch, exhaust filter control pressure switch, oil level protection switch
X3753-64093 MS-631FL high capacity rotary vane pump, frameless version can be directly coupled to a roots pump, 465 cfm free air displacement at 60 Hz, 18.5 kW, 60 Hz, 220/380V, DN150 DIN2533, thermal protection switch, exhaust filter control pressure switch, oil level protection switch
X3753-64076 MS-631 high capacity rotary vane pump, 465 cfm free air displacement at 60 Hz, 18.5 kW, 400/690V at 50 Hz, 460 V at 60 Hz, DN 100 ISO-K inlet, oil charge not included
X3753-64077 MS-631 high capacity rotary vane pump, 465 cfm free air displacement at 60 Hz, 18.5 kW, 60 Hz, 230/460 V, 4 in NPT inlet, oil charge not included
X3753-64000 MS-631FL high capacity rotary vane pump, frameless version can be directly coupled to a roots pump, 390 cfm free air displacement at 50 Hz, 15 kW, 50 Hz, 400/690 V, DN 150 DIN2533 inlet, oil charge not included
X3753-64074 MS-631 high capacity rotary vane pump, 390 cfm free air displacement at 50Hz, 15 kW, 50 Hz, 400/690 V, DN 100 ISO-K inlet, oil charge not included
X3753-64075 MS-631 high capacity rotary vane pump, 465 cfm free air displacement at 60 Hz, 15 kW, 400/690V at 50 Hz, 460 V at 60 Hz, 4 in gas inlet, oil charge not included
X3753-64090 MS-631FL high capacity rotary vane pump, frameless version can be directly coupled to a roots pump, 390 cfm free air displacement at 50 Hz, 15 kW, 50 Hz, 400/690 V, DN150 DIN2533, thermal protection switch, exhaust filter control pressure switch, oil level protection switch
X3753-64091 MS-631FL high capacity rotary vane pump, frameless version can be directly coupled to a roots pump, 465 cfm free air displacement at 60 Hz, 18.5 kW, 400/690V at 50Hz, 460V at 60Hz, DN150 DIN2533, thermal protection switch, exhaust filter control pressure switch, oil level protection switch
X3753-64080 MS-631 high capacity rotary vane pump, 465 cfm free air displacement at 60 Hz, 18.5 kW, 60 Hz, 220/380 V, DN 100 ISO-K, oil charge not included

New, factory warranted pumps available.

Price: POA, please contact us for latest prices

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