Used WELCH 1402 #9291350 for sale

WELCH 1402 is a twin-head rotary-vane mechanical vacuum pump designed for applications requiring high-speed and high-efficiency operation. It is a single-stage, direct-drive oil-sealed rotary-vane mechanical pump that is designed to achieve superior vacuum performance and long life in tough applications. Offering an ultimate vacuum of down to 1 x 10-3 Pa, and pumping speeds of up to 1.2 m3/hr, 1402 delivers reliable vacuum pumping performance in applications such as laboratory use, industrial processing, and high-vacuum electronics assembly. WELCH 1402 is equipped with a unique twin-head system, which allows for superior vacuum performance and greater portability. The dual-head design improves efficiency by allowing for greater pumping speed per stage. Furthermore, the pump allows for continuous operation, since the twin-head design enables one of the heads to always be pumping while the other is being serviced or replaced. The primary components of 1402 include a corrosion-resistant aluminum base, inlet chamber, and frame; a rotary-vane brushed motor; a drive belt; and two sealed chambers with check valves. The rotary-vane brushed motor is responsible for driving the pump, while the belt transmits power from the motor to the shaft of the pump. The individual compartments of the inlet chamber and base are sealed with O-rings to prevent seepage. In addition, the check valves located at the inlet chamber of each sealed section prevent backflow of gas when the pump is shut off or when the pressure drops below atmospheric pressure. WELCH 1402 is designed for use with mineral-based oils and is equipped with an oil view port, so that oil levels can be monitored easily. The oil level should be checked periodically to ensure that 1402 is functioning at peak efficiency. The pump offers a wide variety of features to ensure maximum efficiency. These include a thermal protection switch, which will cut power to the unit if the internal temperature exceeds a preset limit; and a fan-cooled motor, which efficiently cools the pump during operation. Overall, WELCH 1402 is a reliable, efficient, and cost-effective solution for applications requiring reliable vacuum performance and long life. The twin-head design ensures superior performance and greater portability, while the myriad of features provide powerful operation.