WEKA check valves of type ClpdV are typically used for gases such as He, Ne, H2, N2 and Ar. They are designed for a nominal pressure of 4 bar and for a temperature range of -20° to 60°C. Standard versions are the nominal widths DN25, DN40 and DN50 with vacuum KF flange connection. Larger nominal widths or other connection variants, such as welding ends or threaded connections, are also possible and are produced according to the customer’s requirements.