The Edwards EH250 is a mechanical booster pump designed to enhance vacuum systems by providing high pumping speeds in the pressure range of 0.01 to 1,000 mbar. It operates on the simple Roots principle and is typically used in conjunction with a suitable backing pump to achieve lower system pressures.

Key Features:

• Hydrokinetic Drive: The EH250 utilizes a unique hydrokinetic drive system, allowing the booster pump to start simultaneously with the backing pump. This feature reduces pump-down times by up to 50% compared to conventional direct-drive pumps.
• Automatic Overload Protection: The hydrokinetic drive automatically adjusts the pump’s rotational speed to protect the motor from overload and overheating, ensuring reliable operation even under varying pressure conditions.
• Robust Operation: Designed to handle harsh applications, the EH250 is not damaged by sudden increases in inlet pressure, helping to avoid unscheduled breakdowns and improve overall process performance.

Technical Specifications:

• Pumping Speed: Up to 2,500 m³/h (1,470 cfm) at 50 Hz
• Inlet Connection: ISO 63
• Outlet Connection: ISO 40
• Electrical Supply: 208-230 V, 60 Hz
• Weight: Approximately 61 kg (134 lbs)

Applications:

The EH250 is ideal for applications requiring high pumping speeds and reliable performance, such as:

• Chemical processing
• Research and development
• Industrial vacuum systems