Maxitrol RV81-1 1/2 Regulator

The Maxitrol RV81-1 1/2 is a high-capacity Straight-Thru-Flow gas regulator engineered for residential, commercial, and industrial gas-fired appliances. Featuring a unique conical valve design, this 1 1/2" NPT appliance regulator significantly reduces frictional resistance, allowing gas to pass through without direction changes. This specific RV81 configuration is rated for a maximum inlet pressure of 1/2 PSI to meet CSA certification standards, though it is manufacturer-tested to handle up to 1 PSI. The non-lockup poppet design is critical for maintaining stable pressure to main burners and can handle massive loads up to 4,500,000 BTU/hr depending on differential pressure. It comes factory-equipped with a 3-6" w.c. outlet spring for precise downstream control. For technicians working in tight mechanical rooms, the 6.4-inch swing radius and high-strength aluminum housing ensure reliable performance in demanding environments without the bulk of cast iron alternatives.

• High Capacity Performance: Straight-Thru-Flow (STF) design provides superior flow rates with minimal pressure drop across the 1 1/2" NPT ports.
• Precision Control: The conical valve allows for accurate and sensitive regulation even at extremely low pressure differentials.
• Broad Compatibility: Fully compatible with natural gas, liquefied petroleum (LP) gas, manufactured, mixed, and LP gas-air mixtures.
• Robust Construction: Durable aluminum body rated for ambient temperatures from -40 to 205°F, ensuring stability in extreme mechanical environments.
• Industry Standard Compliance: ANSI Z21.18 and CSA 6.3 certified for peace of mind in professional HVACR installations.

Is the RV81-1 1/2 a lock-up type regulator?
No, the RV81 is a non-lockup type regulator. It is designed specifically for main burner load applications and should only be used where downstream controls can safely operate at line pressure.

Can I install this regulator in any orientation?
For proper operation and to maintain certification, the RV81 series must be mounted in an upright position only.

What is the maximum emergency exposure limit for this unit?
While its working pressure is much lower, the RV81 has an emergency exposure limit of 5 PSI and a gas containment limit of 25 PSI.

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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.