Twin Stage Automatic Changeover Regulators 7525B Series


Body (First Stage) Die Cast Zinc
Body (Second Stage) Die Cast Zinc
Bonnet First Stage Die Cast Zinc
Bonnet, Second Stage Die Cast Zinc
First Stage Nozzle Orrifice Brass
Springs Steel
Valve Seat Discs Resilient Rubber
Diaphragms Integrated Fabric and Synthetic Rubber

These combination automatic changeover, two stage regulators are especially suitable for homes, mobile homes, cottages, construction and other portable two cylinder installations. Empty containers may be replaced without interrupting customer’s gas service.


    • Automatic changeover switches from “service” to “reserve” cylinder automatically without interrupting service.
    • The Second Stage Incorporates wide bonnet drip lip vent to guard against freeze-up when properly installed.
    • With 15 PSIG inlet pressure the second stage, regulator is designed to not pass more than 2 PSIG with the seat disc removed.
    • Allows “reserve” cylinder to supplement the flow of gas from the “service” cylinder during extreme load or severe cold conditions.
    • Incorporates molded diaphragm in second stage regulators.
    • Integral indicator gauge.
    • Change over knob and indicator are integral to the first stage.
    • Select brown finish on first stage.