Designed for large capacity multi-cylinder or tank installations, these regulators are used on such applications as bakeries, motels, restaurants, and grain dryers. The manifold portion of the assembly consists of two 64 Series regulators and a direct mounted 803 Series indicator.

For high pressure (pounds to pounds) service with the outlet pressure supplied by a Type 64SR that has internal relief protection.

This manifold connects to the inlet of a domestic second-stage regulator, providing a complete automatic changeover assembly. A built-in indicator gives indication of when the changeover has taken place. The unit supplies an outlet pressure of approximately 15 psig (supply cylinder) and 7 psig (reserve cylinder).

Composed of two 67 Series regulators and a special 0-60 psig pressure gauge, the R120 Series delivers a 45 psig outlet pressure on supply and 30 psig on reserve. The gauge, which serves as the changeover indicator, is painted red from 0-35 psig. When the dial reads in the 0-35 psig range, it indicates that the manifold has switched from the supply to the reserve cylinder.

For low pressure service. The second-stage portion has the drip lip vent feature and built-in travel stop to open the internal relief valve.

Large capacity changeover manifold for commercial and industrial applications. It consists of two 64 Series regulators and a 803 Series direct indicator.

The assembly is used primarily in conjunction with either an R422 or a 64SR Series regulator. The standard outlet setting is 15 psig (supply) and 5 psig (reserve).

The R962 Series eliminates gas outage problems by switching from nearly empty cylinder to the reserve cylinder automatically. Gas is withdrawn from the supply cylinder until pressure reaches about 7 psig. The changeover manifold then switches to the full cylinder. A red warning flag appears in the built-in indicator to show the changeover has taken place. Additional protection for the vent may be required for the R962 Series to prevent wheel spray from blocking the vent with mud on mobile installations.

Available with a variety of pigtails and mounting brackets, the R966 Series has a built-in indicator to display when the chageover is made. Remote visual indication is available for all R966's by using the 803 Series.

Gas is withdrawn from the supply cylinder until pressure is reduced to approximately 6 psig. A spring then forces the cam downward, opening the other first-stage inlet fitting and allowing gas to enter the R966 Series from the reserve cylinder. When the changeover (from supply to reserve cylinder) is made, the cam activates a red warning flag in the built-in indicator window to show that the original supply cylinder is empty. The arrow on the chageover knob can then by moved so that it points to the new supply cylinder. The empty cylinder can now be refilled, becoming the reserve cylinder.

All R966's have the 3/4-inch FNPT "drip-lip" vent, making additional protection of the vent unnecessary except on mobile applications where road splatter could block the vent. High capacity internal relief construction keeps appliance pressure at 2 psig or below. An extension on the closing cap acts as a travel stop to open the internal relief valve under emergency conditions.