Edwards EH250 - NEW

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In stock
SKU
NEW_EH250
Weight 152 lbs
Motor Power 3 hp
Pumping Speed 274 m3/h
Ultimate Pressure 7.60 x 102 Torr

Edwards EH250 Mechanical Booster Vacuum Pump - NEW

The EH mechanical booster pump, based on the simple Roots principle, remains the favourite pump for applications where high pumping speeds are required for pressures in the region of 0.01 to 10 mbar. This pump must always be backed by another pump, which can deliver against a high-pressure differential to atmospheric pressure.

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Displacement (swept volume)
50 Hz 310 m3h-1 / 185 ft3min-1
60 Hz 375 m3h-1 / 220 ft3min-1
Effective pumping speed with backing pump
E1M40 or E2M40 240 m3h-1 / 141 ft3min-1
E1M80 or E2M80 274 m3h-1 / 161 ft3min-1
Pressure differential across pump
50 Hz 180 mbar / 140 Torr
60 Hz 150 mbar / 115 Torr
Inlet connection ISO63
Outlet connection ISO40
Rotating speed
50 Hz 2,900 rpm
60 Hz 3,500 rpm
Operating continuous inlet pressure 1,000 mbar / 760 Torr
Maximum outlet pressure 1,000 mbar / 760 Torr
Recommended backing pumps GV80, E1M/E2M40, E1M/E2M80
Electrical supply voltage, 3-ph
50 Hz 220-240V / 380-415V
60 Hz 230V / 460V
Motor power
Hydrocarbon 2.2 kW / 3 hp
PFPE 2.2 kW / 3 hp
ATEX 2.2 kW
Explosion proof 3 hp
Ambient temp. range
Operating 5 to 40°C / 40 to 104°F
Storage -10 to 80°C / 14 to 176°F
Max. operating humidity 90% RH
Recommended oil
Standard version Ultragrade 20
PFPE version Fomblin YVAC 16/6
Oil capacity
Coupling cover 1.5 l / 1.6 qt
Shaft seal reservoir 0.125 l
Weight 69 kg / 152 lb

Specifications

Type Label Description Download
Edwards EH Series - NEW Instruction Manual Download

Need modifications to this item? PTB Sales' expert team of engineers can configure products to your specific needs.

Edwards EH250 Mechanical Booster Vacuum Pump - NEW

A30105934 / A301-05-934  EH250HC  IE3 Asia 50Hz 200V 50Hz
A30105945 / A301-05-945  EH250HC  IE3 EU/CN 50Hz 380-400V 50Hz
A30106934 / A301-06-934  EH250HC  IE3 Asia 60Hz 200V 60Hz 380V 60Hz
A30106946 / A301-06-946  EH250HC  IE3 US 60Hz 230/460V 60Hz
A30107934 / A301-07-934  EH250FX  IE3 Asia 50Hz 200V 50Hz
A30107945 / A301-07-945  EH250FX  IE3 EU/CN 50Hz 380-400V 50Hz 
A30108934 / A301-08-934  EH250FX  IE3 Asia 60Hz 200V 60Hz 380V 60Hz
A30108946 / A301-08-946  EH250FX  IE3 US 60Hz 230/460V 60Hz
A30153935 / A301-53-935  EH250FX  220-240/380-415V 3-phase 50Hz 1.5kW
A30154936 / A301-54-936  EH250FX  230/460V 3-phase 60Hz 2 hp
A30152934 / A301-52-934  EH250IND  200V 3-phase 60Hz
A30151934 / A301-51-934  EH250IND  200V 3-phase 50Hz
A30151945 / A301-51-945  EH250IND  220-240/380-415V 3-phase 50Hz 2.2kW
A30152946 / A301-52-946  EH250IND  230V or 460V 3-phase 60Hz 3 hp

Atlas Copco ZRS250  3-phase 230/460V 60Hz