WELCH is manufacturer of an innovative range of vacuum pumps, modular systems and network solutions for use in laboratory (laboratory vacuum pumps) and industry (industrial vacuum pumps). As an expert in vacuum applications, the company offers comprehensive advisory service for customized pumps. Pump types include dry scroll pumps and diaphragm pumps, rotary vane pumps, oil diffusion pumps and turbomolecular pumps. WELCH also manufactures standard and custom flanged components, chambers and valves to provide the best vacuum environment for all processes. In addition we design and construct vacuum networks, e.g. centralized vacuum systems with distribution to multiple outlets. The range of service maintenance and training provided by WELCH is extensive and, with subsidiary companies, agents and service partners in more than 40 countries, our reach is worldwide.