EH250 FX IE3 Asia 50HZ 200V 50HZ A30107934
EH250 FX IE3 Asia 50HZ 200V 50HZ A30107934 EH250 Mechanical Booster Pump EH Mechanical Booster Pump EDWARDS Mechanical Boosters Kuala Lumpur (KL), Malaysia, Selangor, Sri Petaling Distributor, Supplier, Supply, Supplies | Glovac Sdn Bhd
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Overview:
The EH mechanical booster pumps feature the unique hydrokinetic drive, providing an efficient power transmission with benefits in economy, performance and compactness. The hydrokinetic drive provides pump down times cut by 50%, when compared with direct drive pumps, no bypass lines or pressure switches required, universal voltage motors, reduced capital and operating costs, air cooled motors – with water cooled options, and quiet, minimum vibration.

 The EH mechanical booster pumps, based on the simple Roots principle, remain the favourite pumps for applications where high pumping speeds over 3000 m3h‑1/1776 ft3min-1 are required in the pressure region of 0.01 to 50 mbar/0.0075 to 37.5 Torr. These must always be backed by another pump which can deliver against a high pressure differential to atmospheric pressure. Operating at relatively low pressures, the mechanical booster pump is not exposed to the same concentrations of corrosive process media as is the backing pump, which makes it highly reliable.

Features & Benefits:
-  Performance – fast pump down time due to unique hydrokinetic drive. 
-  Increased productivity – faster pump down time. 
-  More performance for less – larger displacement than equivalent competitor models. 
-  Stable operation – optimised clearances and after coolers. 
-  Simplicity – Continuous operation at all pressures. 
-  Simple installation – no need for pressure switches, bypass lines or variable frequency drives. 
-  Reliability – automatic overload protection, reliable shaft seal design. 
-  Safe operation – automatic overload protection. 
-  Robust operation even for harsh duties – proven shaft seal design to protect pumping mechanism and gearbox from cross-contamination. 
-  High uptime and low maintenance – internal evacuation of gearboxes extends shaft seal life. 
-  Reassurance. 
-  Peace of mind – industry proven with large installed base.

Technical Data:
Displacement (swept volume)  
50Hz 310 m3h-1 / 185 ft3min-1
60Hz 375 m3h-1 / 220 ft3min-1
Effective pumping speed with backing pump  
E2M40 240 m3h-1 / 141 ft3min-1
E2M80 274 m3h-1 / 161 ft3min-1
Pressure differential across pump  
50Hz HC & FX 0-180 mbar / 0-140 Torr
60Hz HC & FX 0-150 mbar / 0-115 Torr
Inlet connection ISO63
Outlet connection ISO40
Rotational speed  
50Hz 0-2900 rpm
60Hz 0-3500 rpm
Operating continuous inlet pressure 0-1000 mbar / 0-760 Torr
Maximum outlet pressure 1000 mbar / 760 Torr
Recommended backing pumps GV80, E2M40, E2M80, ES100, 212J
Motor power  
Hydrocarbon 2.2 kW / 3 hp
PFPE 2.2 kW / 3 hp
ATEX 2.2 kW
Explosion proof 3 hp
Ambient temperature range  
Operating 5 to 40°C / 40 to 104°F
Storage -20 to 80°C / 14 to 176°F
Maximum operating humidity 90% RH
Recommended oil  
Standard version Ultragrade 20
PFPE version Fomblin YVAC 16/6
Oil capacity  
Coupling cover 1.5 litre
Shaft seal reservoir 0.125 litre
Weight 75 kg / 165 lb

Hydrocarbon Prepared – HC
Standard pump for use with Ultragrade oil. Oil supplied with the pump

PFPE Prepared - FX
These pumps are assembled and tested using PFPE fluid. PFPE (Fomblin®) to be purchased separately

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