Type R130 changeover manifold assemblies are composed of two Type 67C regulators and a special 0 to 60 psig / 0 to 4,1 bar pressure gauge, the Type R130-20 delivers a 45 psig / 3,1 bar outlet pressure on supply and 30 psig / 2,1 bar on reserve.
The gauge, which serves as the changeover indicator, is painted red from 0 to 35 psig / 0 to 2,4 bar. When the dial reads in the 0 to 35 psig / 0 to 2,4 bar range, it indicates that the manifold has switched from the supply to the reserve cylinder.
