About Welch Pumps

Welch is a leading pump manufacturer of high quality, durable, vacuum products, which includes diaphragm pumps, rotary vane pumps, and vacuum systems. Welch pumps are designed for a wide range of applications, including laboratory, industrial, and medical uses. With a focus on reliability and performance, Welch provides innovative solutions for various industries, ensuring efficient and effective vacuum processes.

welch Vacuum Pumps

Scroll Vacuum Pump

1 product available

Rotary Vane Vacuum Pumps

8 products available

Belt Driven

6 products available

WOB-L Piston Pumps

9 products available

Diaphragm Pumps

4 products available

Vacuum Gauges and Controllers

1 product available

Fluid Aspiration Systems

1 product available

Vacuum Pump Oils

2 products available

Specialty Vacuum Pumps

1 product available

Applications of Welch Vacuum Pumps

Rotary Evaporator

Welch vacuum pumps are essential for rotary evaporators, providing precise vacuum control from 1-400 Torr. Welch chemical-duty pumps feature solvent recovery and excellent chemical resistance, with options like the RC 6 achieving deep vacuum levels needed for high boiling point solvents. The ChemStar series delivers ultimate vacuum of 2 x 10⁻³ Torr with PTFE-coated wetted surfaces for maximum chemical resistance. Features include electronic vacuum control, automatic vapor detection, and integrated solvent recovery systems. Oil-free options available for sensitive applications, with flow rates up to 40 L/min. Includes RS-232 interface for process documentation and programmable vacuum control for reproducible results.