WEH Quick Connectors for function, leak and pressure testing from vaccuum up to 2,000 bar are easy to operate without hand-tightening. The Test Connectors are designed for easy connection to threads, beads, tubes, hoses etc. without twisting, turning or hand-tightening and substantial time saving for connection and disconnection. A large variety of Gas Filling Connectors are available for gas filling applications. WEH offers gas fittings for many cylinder standards, i.e. CGA, DIN, etc. WEH Check Valves for liquid and gaseous media are suitable for highly demanding applications and available in stainless steel, galvanised steel and brass. WEH High pressure valves for oxygen and inert gases are designed for filling, evacuating and mixing of gases to setup complex valve systems. Imprint: https://www.weh.com/imprint