EDP250 50/60Hz, Bareshaft Pump A70543000
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Overview:
EDP pumps are based on Edwards’ oil-free, non-contacting, award-winning, reverse claw mechanism. They provide consistent vacuum at high efficiencies and low costs of ownership. Dry pumps completely eliminate all problems of process contamination and creation of polluted effluent, which are experienced with traditional wet vacuum pump technologies.
Features & Benefits:
Technical Data:
EDP pumps are based on Edwards’ oil-free, non-contacting, award-winning, reverse claw mechanism. They provide consistent vacuum at high efficiencies and low costs of ownership. Dry pumps completely eliminate all problems of process contamination and creation of polluted effluent, which are experienced with traditional wet vacuum pump technologies.
Features & Benefits:
- Staged compression for optimum temperature profile within the pump and no requirement for cooling gas injection
- Inherently free draining
- Able to handle liquid or particulate carryover
- Short gas path eliminates particulate build-up and corrosion - Edwards’ patented design
- Can flush with solvents, water or steam
- No internal valves to block or corrode and no interstage condensers to create potential for corrosion
- Simple robust construction with ample power ensures reliable operation even during process upsets
- Non-contacting mechanisms gives long life and high reliability
- Pump flammable gases safely
- Pump corrosive gases without corroding
- Designed for long life and easy maintenance - Minimum of 25 years life expectancy
- Lower cost of ownership
Technical Data:
| Maximum pumping speed | |
| 50 Hz | 260 m3h-1 / 153 ft3min-1 |
| 60 Hz | 320 m3h-1 / 188 ft3min-1 |
| Capacity at 10 mbar (7.5 Torr) | |
| 50 Hz | 255 m3h-1 / 150 ft3min-1 |
| 50 Hz | 315 m3h-1 / 185 ft3min-1 |
| Ultimate vacuum | |
| 50 Hz | 0.5 mbar / 0.4 Torr |
| 60 Hz | 0.2 mbar / 0.2 Torr |
| Maximum back pressure | |
| Standard | 1150 mbar / 2.2 psig |
| Optional* | 1300 mbar / 4.4 psig |
| Power consumption at 10 mbar (7.5 Torr) | |
| 50 Hz | 6.0 kW / 8.0 hp |
| 60 Hz | 6.0 kW / 8.0 hp |
| Standard motor (380 – 400 V, 3 ph, 50 Hz) | |
| 50 Hz | 11 kW |
| 60 Hz | 15 kW |
| Standard motor (200 – 460 V, 3 ph, 60 Hz) | |
| 50 Hz | 15 hp |
| 60 Hz | 20 hp |
| Cooling water flow rate (adjustable) | |
| 50 Hz | 1 – 10 l min-1 / 0.3 – 2.6 gal min-1 |
| 60 Hz | 1 – 10 l min-1 / 0.3 – 2.6 gal min-1 |
| Cooling water supply pressure | 2 – 10 barg / 29 – 145 psig |
|
Seal purge flow (maximum), regulated to 0.3 - 0.5 barg (5 – 7 psig) |
20 l min-1 / 0.7 ft3min-1 |
|
Seal purge supply pressure (minimum - maximum) |
2 – 10 barg / 29 – 145 psig |
| Noise (max. with exhaust silencer) | |
| 50 Hz | 78 dB(A) |
| 60 Hz | 79 dB(A) |
| Weight (with frame and standard motor) | |
| 50 Hz | 756 kg / 1667 lbs |
| 60 Hz | 848 kg / 1870 lbs |
| Inlet | 3’’ ANSI / DN80 |
| Outlet | 2’’ ANSI / DN50 |
| Pumping mechanism | 3 stage reversed claw |
