The 493 Series regulator provides primary pressure control of ultra-high purity and corrosive gases in applications requiring ultra-high pressures. Rather than a diaphragm, the regulator uses a robust piston assembly to ensure safe pressure control at high inlet pressures. Available with a variety of options installed at the factory, the CONCOA 493 Series regulator may be configured as a line regulation or a single station manifold with or without purge, low-pressure alarm, or multiple inlets.