Diaphragm Vacuum Pumps
Welch Diaphragm Vacuum Pumps – Oil-Free Precision for Laboratories, Industry, and Healthcare
A diaphragm vacuum pump is the ideal solution for creating vacuum without the use of oil. It serves a wide range of applications across medical equipment, laboratories, and industrial processes.
Welch offers a complete range of diaphragm pumps – from standard models to specialized chemical-duty pumps and integrated laboratory vacuum systems.
Each pump is engineered to meet the demanding standards of modern research and production, with a focus on efficiency, reliability, and clean, low-maintenance, oil-free operation.
Experience Welch’s innovation in vacuum technology – achieving vacuum levels from 75 to 150 mbar and air flow rates up to 8.3 m³/h (4.87 CFM).
What Is a Diaphragm Vacuum Pump?
A diaphragm vacuum pump generates vacuum without oil by means of a flexible, oscillating diaphragm.
As the diaphragm moves back and forth, it rhythmically changes the chamber volume, expelling air molecules and gradually creating a stable vacuum.
This technology ensures clean, quiet, and environmentally friendly operation, eliminating the risk of oil contamination.
Welch is renowned for its advanced diaphragm pumps that combine high performance, reliability, and sustainable technology.
