APPLICATIONS - Used as a line regulator or point of use for specialty gas applications. KEY FEATURES - Based on the Series S 20 technology. - Bellow technology provides a large range of accurate outlet pressures in a compact design. - With the rear threads and fixing ring (option) it can be used for wall or panel mounting. - Acetylene version also available. - For use with acetylene, this product must imperatively be installed with a flash back arrestor complying with standard EN 730 located downstream. - The inlet shut off valve reduces the risk of gas dispersion when closed.