Maxitrol RV91-2 1/2 Regulator

The Maxitrol RV91-2 1/2 is a high-capacity gas pressure regulator engineered for commercial and industrial gas-fired equipment. Featuring a 2 1/2" NPT connection, this straight-thru flow design appliance regulator utilizes a unique conical valve that minimizes frictional resistance. This internal geometry allows gas to pass through without direction changes, ensuring sensitive regulation even at low pressure differentials. The RV91-2 1/2 is CSA certified for a 1/2 PSI maximum inlet pressure and has been Maxitrol tested for up to 1 PSI. It reliably maintains a 3-6" wc outlet pressure range, making it a critical component for large boilers, furnaces, and rooftop units. This non-lockup type regulator is suitable for natural gas, LP, and mixed gas applications. Technicians should note that is must be mounted in an upright position for proper operation and is identical to the RV91-2 1/2-CSA model in performance and construction.

• High Flow Capacity: The straight-thru flow pattern significantly reduces pressure drop, allowing for smaller manifold sizing in high-demand systems.
• Precise Regulation: The Teflon-coated conical valve provides accurate control from full flow down to pilot flow on main burner gas trains.
• Rugged Construction: Built with a high-strength aluminum housing and synthetic coated fabrics for the diaphragm to withstand an ambient temperature range of -40 to 205°F.
• Appliance Safety: CSA certified to meet ANSI Z21.18 standards for gas appliance pressure regulators.

Can the RV91-2 1/2 be used as a line pressure regulator?
No, this is a non-lockup appliance regulator intended for main burner only applications. It should not be used as a line regulator ahead of low-pressure controls where dead-end lock-up is required.

What is the maximum inlet pressure rating?
While CSA certified for 0.5 PSI (1/2 PSI), the unit is Maxitrol tested to handle up to 1 PSI. Internal damage may occur if exposed to pressures exceeding 25 PSI.

In what orientation should this regulator be installed?
The RV91 series must be installed in an upright horizontal position only. Multi-poise mounting is not recommended for this specific model size.

This item is not eligible for free shipping.

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.