Maxitrol RV111-3 Regulator

The Maxitrol RV111-3 is a heavy-duty, 3-inch NPT gas appliance pressure regulator engineered specifically for high-capacity industrial and commercial gas-fired equipment. Utilizing Maxitrol’s original Straight-Thru-Flow (STF) design, this regulator significantly reduces frictional flow resistance to deliver a massive 17,000,000 BTU/hr capacity. It is CSA certified for 1/2 PSI maximum inlet pressure and has been Maxitrol tested for up to 1 PSI, making it an ideal choice for large boilers, steam generators, and industrial furnaces operating on low to medium-pressure gas supplies. The internal conical valve allows gas to pass through without direction changes, ensuring sensitive and accurate regulation even at extremely low pressure differentials. This specific model comes equipped with a 3-6" W.C. outlet pressure spring and is designed for main burner conversion applications where downstream controls can safely operate at line pressure.

Key Benefits of the Maxitrol RV111-3

• High Capacity Performance: Delivers up to 17,000,000 BTU/hr, allowing for the reduction of manifold sizes in high-demand systems.
• Superior Regulation: Advanced straight-thru flow design ensures accurate outlet pressure control with minimal pressure drop.
• Multi-Fuel Compatibility: Suitable for use with natural gas, LPG, manufactured, and mixed gas-air mixtures.
• Rugged Construction: Durable aluminum housing designed for upright mounting in demanding mechanical rooms.
• Industry Compliance: Meets ANSI Z21.18/CSA 6.3 standards for gas appliance pressure regulators.

Common Questions Regarding the RV111-3

Can the RV111-3 be used as a line pressure regulator?
No, this is a non-lockup type appliance gas regulator. It should only be used as a main burner regulator where downstream equipment is rated to handle inlet line pressures. It is not intended for use as a 2 PSI line regulator ahead of low-pressure controls.

What is the proper mounting orientation for this 3-inch NPT regulator?
The RV111-3 must be installed in an upright horizontal position. Multi-positional mounting is only supported on smaller RV series models (RV52 through RV61).

What happens if the inlet pressure exceeds 1 PSI?
Exceeding the 1 PSI Maxitrol tested limit can cause internal damage to the diaphragm or valve seat. For higher inlet pressures, a 325 series or 210 series balanced valve regulator may be required.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.