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Edwards GXS250 3Ph 200–230 V 50/60 Hz (LV), Light Duty (shaft seal and gearbox purge, 12 slm), side outlet, on skids

Part number: GS7120000200 Series: GXS series Manufacturer: Edwards Technology: Screw vacuum pumps Industries: Aerospace, Battery manufacturing Applications: Crystal growing, Extruder degassing and extrusion

The Edwards GXS250 is a dry screw vacuum pump with a pumping speed of 250 m³/h and an ultimate pressure below 0.01 mbar. The GXS series is designed for harsh processes in metallurgy, coating and chemistry. Ehrler & Beck advises on selection and service.

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  • Pumping speed 250 m³/h 50 Hz 250 m³/h 60 Hz
  • Ultimate pressure 0.01 mbar
  • Rated motor power 7.5 kW 50 Hz 7.5 kW 60 Hz
Available variants
Variant Part number
3Ph 200–230 V 50/60 Hz (LV), Light Duty (shaft seal and gearbox purge, 12 slm), side outlet, on skids (selected) GS7120000200
3Ph 200–230 V 50/60 Hz (LV), Light Duty (shaft seal and gearbox purge, 12 slm), rear outlet, on castors GS7120050200
3Ph 200–230 V 50/60 Hz (LV), Medium Duty (additionally inlet, gas ballast and exhaust purge with pressure monitoring), rear outlet, on castors GS7120350200
3Ph 380–460 V 50/60 Hz (HV), Light Duty (shaft seal and gearbox purge, 12 slm), side outlet, on skids GS7150000200
3Ph 380–460 V 50/60 Hz (HV), Light Duty (shaft seal and gearbox purge, 12 slm), rear outlet, on castors GS7150050200
3Ph 380–460 V 50/60 Hz (HV), Medium Duty (additionally inlet, gas ballast and exhaust purge with pressure monitoring), side outlet, on skids GS7150300200
3Ph 380–460 V 50/60 Hz (HV), Medium Duty (additionally inlet, gas ballast and exhaust purge with pressure monitoring), rear outlet, on castors GS7150350200
3Ph 380–460 V 50/60 Hz (HV), Medium Duty (additionally inlet, gas ballast and exhaust purge with pressure monitoring), rear outlet, on castors, ATEX category 3, temperature class T2 (explosion-proof version) GS7150351100
3Ph 380–460 V 50/60 Hz (HV), Medium Duty+ (high purge gas flow / solvent flush), side outlet, on skids GS7150400200
3Ph 380–460 V 50/60 Hz (HV), Medium Duty+ (high purge gas flow / solvent flush), rear outlet, on castors GS7150450200

Edwards GXS250 – dry screw vacuum pump

The GXS series combines its own screw technology with high-efficiency drives and advanced temperature control. The GXS250 reaches 250 m³/h and an ultimate pressure below 0.01 mbar; it can be operated continuously up to atmospheric pressure. The motor power is 7.5 kW pump.

Features

  • Shafts supported at both ends (no overhung bearings) for very low vibration and reliable starting even in harsh processes
  • High-efficiency motors with electronic drives for high torque in difficult processes
  • Good powder tolerance; extensive accessories such as inlet filters, automatic inlet isolation valves and silencers
  • Purge gas packages Light Duty, Medium Duty and Medium Duty+ depending on the process

Typical applications

Edwards names, among others, metallurgy (vacuum brazing, electron beam welding, nitriding, low-pressure carburising, sintering, metal injection moulding, investment casting), coating and chemical processes.

Versions of the Edwards GXS250

The 10 versions differ in the mains voltage (LV 200–230 V, HV 380–460 V), the purge gas package (LD, MD, MD+) and the installation (outlet at the side on skids or at the rear on castors); in addition there is an ATEX version (category 3, T2). The gas load and the purge gas quantities for each package are given in the Edwards operating instructions. According to Edwards, the MD+ versions need the optional Pump Display Terminal (PDT) for operation.

Advice and service

Ehrler & Beck supports you in selecting the right version and accessories and carries out maintenance and repair.
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