Maxitrol R500Z-1/2 Valve

The Maxitrol R500Z-1/2 is a high-precision zero governor gas regulator designed specifically for demanding air-gas mixing applications. Featuring a balanced valve design, this 1/2" NPT regulator maintains exceptional stability and responsiveness even during significant inlet pressure fluctuations. It is a critical component for contractors managing industrial burners, nozzle mixers, and proportional pre-mixers where maintaining an outlet pressure close to atmospheric levels is non-negotiable. With a CSA certified maximum inlet pressure of 1/2 PSI and a Maxitrol-tested rating of up to 1 PSI, this unit provides the robust performance needed for both main burner and pilot load applications. The double diaphragm construction ensures precise flow control across a wide range of gases, including natural gas, LP, and mixed gas systems. Engineered with a lightweight aluminum housing, it supports multi-position mounting for versatile field installation while operating within a broad ambient temperature range of -40°F to 205°F.

• Zero Governor Design: Optimized for proportional air-gas mixers, ensuring accurate stoichiometric ratios in combustion systems.
• Balanced Valve Design: Eliminates the traditional "hunting" of pressure, providing a steady output despite upstream inlet pressure variances.
• Multi-Position Mounting: The R500Z series allows for flexible installation angles, though upright mounting is required if a vent limiter is utilized.
• Wide Fuel Compatibility: Fully rated for use with natural gas, manufactured, mixed, and liquefied petroleum gases.

What is the typical outlet pressure range for the R500Z-1/2?
This regulator is designed for zero governor service, typically managing outlet pressures from -1.0" to 1.5" W.C., making it ideal for atmospheric applications.

Can this unit be used as a standard appliance regulator?
While it serves as an appliance regulator, its specialized zero governor internal mechanics are specifically tailored for mixing and flow control rather than standard high-to-low pressure reduction.

Are vent protectors required for this model?
For outdoor installs or specific local codes, a separate vent protector (such as the 13A15) is often required as it is not included with the base regulator.

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.