Used EDWARDS QDP80 / QMB250 #293597352 for sale

EDWARDS QDP80 and QMB250 pumps are both high performing and reliable rotary vane pumps designed for use in a variety of applications, such as laboratory and process equipment, vacuum furnaces, etching and distillation systems, and thin film deposition. These pumps feature a two-stage compression mechanism, with the first stage sucking gas from the intake and the second stage compressing it against the outlet. They use oil-free, dry-lubricated vanes that are made from high-grade materials for long-term use, and low vibration operation. The direct-drive motor provides max speeds of up to 3,600 r/min, allowing for high-efficiency operation. This makes the pumps capable of producing higher holding and backing vacuums with minimal ultimate pressure. Both the QDP80 and QMB250 have integral gas ballast and anti-suckback valves for additional protection. The gas ballast allows users to control the pumping speed and vacuum level, while the anti-suckback valve prevents contamination of the vacuum system when the pump is turned off. The captured oil in the gas ballast and the patent pending collector system both help reduce the contamination of the oil and improve the performance of the pumps. An isolator between the motor and the pump ensures low noise and vibration operation, while special elastomers reduce wear on the components due to vibration. EDWARDS QDP80 and QMB250 are designed for easy installation, use, and maintenance. Both pumps are provided with a digital display system that provides the user with detailed information about the pump's performance. This includes the pressure, temperature, motor speed, and selected vacuum level. EDWARDS QDP80 and QMB250 are both equipped with standard accessories, such as flexible connectors, foreline traps, and manual valves. These accessories make the installation process easier and provide protection from contamination. Both models are also equipped with stainless steel adapter flanges for connection to external systems. Overall, EDWARDS QDP80 and QMB250 rotary vane pumps are reliable and efficient systems for high vacuum applications. With their advanced design and features, these pumps offer optimal performance and are easy to install and maintain.