Semi-automatic manifold used in laboratory gas management, centralized gas supply, test instruments, petrochemical industry, semiconductor industry, etc. Semi-automatic manifolds are used to adjust and control the uninterrupted gas supply of the middle and small flow compressed gas cylinder manifolds. When the gas on the priority supply side is depleted, the pressure drops, automatically switching to the standby supply side.Select the direction of the handle (left or right) to set the priority supply side and backup supply side. By adjusting the output pressure reducer, the output pressure of the switching device can be set.SpecificationsGas Types: Oxygen, Nitrous Oxide, Carbon Dioxide, Medical Air, and other gasesThe pressure reducer and pipeline are 100% tested for pressure resistance and leakageAll diaphragm valve knobs have “open/close” indication windowsInlet pressure optional: 40bar, 60bar, 160bar, 250barOutlet pressure range optional: 3~6bar, 5~9bar, 9~13bar, 12~16barWorking temperature: -40°C~74°C (-40°F ~ 165°F)Leak rate: 2×10^8atm cc/sec HeMaterials in contact with gas media: SUS316L, Hastelloyor, PCTFE, PTFECV value: 0.1, 0.15Capacity: Customizable to accommodate different cylinder banks