Used WELCH 1397 #109987 for sale

WELCH 1397 is a diaphragm-type, two-stage, rotary-drive gas sample-handling pump. It is built to withstand extreme temperatures and is ideal for applications that require a steady, high level of pressure output, such as low-flow sample-handling and vacuum work. This pump has a single-handled rotor assembly powered by a pneumatically operated foot valve and a spring-loaded foot pressure switch, both of which are easy to operate. Its two-stage design offers an efficient lift capability that is especially designed to maintain laminar flow and sustain a constant sample pressure. 1397 has a maximum vacuum and pressure rating of up to 17.5 inHg and 150 psi, respectively. The pump's streamlined design helps keep operation and maintenance costs to a minimum, while its free-standing base and mobility options make it ideal for a number of different applications, including manifold sampling and automation processes. Additionally, its 24- and 32-volt models are capable of operating under an opposed two-stage arrangement, and can be powered by an AC or DC power source. WELCH 1397 is also extremely versatile when it comes to flow control. With an adjustable flow rate valve, this pump can achieve flow rates ranging from 0-2 CFM up to 10 CFM, depending on the type of application. This unique feature allows for a wide range of sample-handling possibilities and makes the pump an excellent addition to any laboratory. Finally, 1397 is equipped with a low-amperage, adjustable Vane Speed Controller to ensure optimal performance and reliability in a range of pressure and vacuum applications. The rotary-drive design makes the motor and drive mechanism easy to service and repair should the need arise. This pump is specifically designed for rugged use and ensures excellent performance in harsh conditions. It is lightweight, dependable and built to last, providing a cost-effective solution to a wide range of fluid handling needs.