Used EDWARDS EXT 250H #9002279 for sale

EDWARDS EXT 250H is a high-end mechanical dry-running rotary vane pump developed by the British manufacturer EDWARDS Ltd for a range of industrial applications. The pump has a reliable, durable construction and is designed to handle refrigerants, gasoline, solvents and more efficiently. EXT 250H has a fixed-speed rotary vane, which provides a smooth and quiet operation with maximum efficiency. This pump features a two-stage design for the delivery pressure of up to 19 bar, at the rate of up to 25 l/min. EDWARDS EXT 250H has a cast-iron casing, with an inlet connection of M 12x1.25 and its outlet connection threaded connection with BSPP of 1/4". The shaft and rotor are made of corrosion-resistant stainless steel for long term performance. The motor power supplied to EXT 250H ranges from 220V to 400V, at the frequency of 50-60 Hz, for a maximum motor power of 1.1 kW. The pump is also matched to an IE2 motor, offering a range of options for different speed and motor drive systems. This allows EDWARDS EXT 250H to be customized for specific applications. For reasonable assurances of smooth operation of EXT 250H, the pump must not be operated near failure conditions. EDWARDS EXT 250H should be kept free of lubricants, dirt, debris, or other foreign materials to ensure reliable operation and maximum performance. A Filter screen should be used to prevent particles entering the pump. In terms of maintenance, EXT 250H does not typically require oil, but it should be inspected every 3-6 months for signs of wear. The pump rotor and the mechanical seal should be examined periodically to ensure they are in proper working condition. If necessary, the rotor and other parts should be adjusted, replaced, or lubricated. Additionally, the pump casing should be stripped and inspected for any blockages or foreign materials. Finally, the motor should be checked to ensure it is free of dust and debris. In summary, EDWARDS EXT 250H is a high-end mechanical dry-running rotary vane pump developed for industrial applications. It has a two-stage design offering a maximum delivery pressure of 19 bar and a maximum motor power of 1.1 kW. The pump should be kept free of lubricants, dirt, debris, or other foreign materials, and it needs to be inspected and maintained every 3-6 months for proper functioning.