KEMus 10 and KEMus 25 are 2-stage direct acting regulators with two independent spring loaded units built together in series. Standard features include gas loss protection, safety shut-off valve (OPSO) and a safety diaphragm. It is fitted with an inlet strainer. An optional safety internal relief valve avoids triggering the shut-off valve in case of thermal expansion, transient pressure surges, or creep leakages from the regulator. Gas loss protection together with an optional integrated flow controller limit the maximum gas flow.