The Spec Master HPM6220 series two stage manual change control panels are designed for primary pressure gas control of non-corrosive or toxic, high purity gases up to grade 6.0 purity (99.9999%), on gas distribution systems where constant delivery pressure is required.
■ HPM6221 Series | Two Stage Single Cylinder Piston Manual Gas Change Control Panel, FKM Seal
■ HPM6222 Series | Two Stage Single Cylinder Piston Manual Gas Change Control Panel, EPDM Seal