Robertshaw Pressure and Vacuum Regulators
RP-1072 series regulator is restricted to vacuum applications. The range
of pressures under control cannot vary beyond 0 psig and -14.7 psig.
The RP-1065 and RP-1066 diaphragm actuated pressure regulators are designed
with spring adjusted pressure regulators and relief valves for steam
The RP-1070 and RP-1073 bellows actuated pressure regulators are simple,
self-operated and offer sensitive, accurate control of reduced pressures.