Maxitrol RV48L Natural Gas Regulator – 1/2 psi In, 3-6 in WC Out, 3/4in FPT

Overview

The Maxitrol RV48L is a purpose built natural gas pressure regulator designed for NG lines that require reliable pressure delivery. It accepts a 1/2 psi inlet and delivers an adjustable outlet range of 3 to 6 inches of water column. This model supports 3/4 inch piping with standard FPT connections, making it suitable for compact residential installations and small commercial setups where steady pressure matters to appliance performance.

Key details include 1-1/16 inch openings compatible with 3/4 inch gas pipes, plus 3/4 inch IN and 3/4 inch OUT female pipe threads. The regulator is labeled RV48L and is designed to operate across a wide ambient range, helping maintain consistent gas delivery across typical living spaces. Its construction follows standard pipe thread sizing, and the arrow on the casting guides proper flow direction during installation.

Important notes on operation and safety

Important: gas pressure regulators will not turn off the flow of gas. Install the regulator with gas flowing in the direction of the arrow on the casting. Do not place this regulator too close to heating equipment or in very cold environments, as temperature extremes can affect the spring resistance inside the unit.

Core specifications

• Gas type and pressure: Natural Gas (NG). Inlet pressure: 1/2 psi. Outlet pressure: 3 to 6 inches water column (WC).
• Pipe thread size: 3/4 inch IN and 3/4 inch OUT FPT. The openings are designed for 3/4 inch gas pipes; interior diameter considerations are recommended before purchase.
• Temperature range: 32°F to 225°F (0°C to 107°C). Suitable for a variety of indoor environments while maintaining performance.

Installation and use tips

• Carefully verify the pipe thread size by interior diameter and reference the pictures provided with the listing to confirm fit.
• Marking and labeling: look for the RV48L model and its specified outlet range (3 to 6 WC) to ensure compatibility with your system.
• Follow the arrow direction for proper installation; ensure there is adequate clearance from heat sources and that gas is flowing as indicated.

Why consider the RV48L

For NG systems that benefit from a dependable, adjustable outlet, the RV48L offers a practical balance of compatibility and performance. While it cannot shut off gas flow, it can help maintain a stable pressure at the point of use, which may support smoother burner operation and more consistent appliance performance in appropriate applications.