EOSI - ROTARY SCREW
Class leading ultimate vacuum level and extended operating pressure range
Improved productivity
Class-leading pumping speed and fast chamber pumpdown performance capability
Intelligent control
Closed loop pressure control and active power management
Low cost of ownership
Automatic performance matched to vacuum demand
Quiet operation
Noise levels approximately half that of comparable technologies
Edwards EOSi range is a new generation range of quiet, oil sealed rotary screw vacuum pumps. With Variable Speed Drive (VSD) technology and intelligent control, the EOSi range delivers impressive on-demand performance capability and optimises energy consumption.
EOSi sizes
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| Units | EOS 350i | EOS 585i | EOS 730i | EOS 900i | EOS 1300i | EOS 1600i | EOS 1900i | |
| Peak pumping speed | m³/h | 400 | 560 | 730 | 900 | 1250 | 1590 | 1810 |
| Ultimate vacuum | mbar | 0.35 | 0.35 | 0.35 | 0.35 | 0.35 | 0.35 | 0.35 |
| Shaft power | kW | 5.5 | 7.5 | 11 | 15 | 22 | 30 | 37 |
| Permissible ambient temperature | °C | 0 - 46 | 0 - 46 | 0 - 46 | 0 - 46 | 0 - 46 | 0 - 46 | 0 - 46 |
| Noise level range | dB(A) | 51-65 | 51-65 | 51-73 | 51-76 | 65-75 | 65-79 | 65-80 |
The highly efficient patented oil separator design extends service intervals and reduces maintenance costs. Temperature management control enables unrivalled water handling capability to provide you with the versatility and flexibility you need for your application.
The EOSi range is available in up to 4 variant options to enable you to select the optimal choice for your application:
Standard: designed to deliver the exact performance to match your demand, at the minimum possible lifecycle cost. Intelligent control enables energy reduction of 50% or more compared with conventional solutions.
Q: designed for cycling applications, where chamber pumpdown time is important. The responsive inverter control and special configuration enables even faster chamber pumpdown with optimal energy efficiency.
W: whilst the standard EOSi pumps are able to reliably pump water vapour loads similar to equivalent rotary vane pumps, the W version is designed to pump significantly higher water vapour loads and can offer superior comparative performance where required on applications such as pipeline drying and freeze drying.
QW: combines the special design configuration of the Q version with the water vapour handling capabilities of the W version.
Product Features
PUMP MODULE
Highly efficient oil-sealed rotary screw. Outstanding performance. Robust design. Element life is significantly longer than screw compressors and vane pumpsGUARANTEED OIL RETENTION
Longer life because of managed performance means the vacuum pump never overloads the separators. Innovative and patented design retains oil at <3 mg/m3 even when under the greatest load. In conventional fixed speed vacuum pumps overloaded oil separators lead to oil carryoverEASY TO USE, SIMPLE TO MAINTAIN
The top cover of the oil separator has a unique hinge mechanism. It slips the cover to the side allowing the oil separator filter to be changed easily and quickly. A cleverly designed exhaust pipe enables the condensates to be collected in the discharge pipework at the outletENERGY RECOVERY OPTIONS
Available for larger motor sizes. Helping you to fulfil your energy management and environmental commitments according to ISO 50001/14001ENCLOSURE WITH HOT-COOL ZONES
It isolates all heat producing and temperature critical components (oil separator and element) from all other components. As cool running means higher reliability this feature extends the lifetime of electronic components and leads to a longer Mean Time Between Maintenance(MTBM)INLET CONTROL VALVE
Provides modulating vacuum control in conjunction with the VSD drive to minimize energy consumption
DOCUMENTATION & VIDEOS
