the Copeland 998-0251-00 is rated for 50/60 Hz

The M520 series valves do not have an internal high-fire regulator

Broad Application Range: Rated for use in both residential furnaces and commercial water heating equipment

Simplified Installation: Standard 3/4" NPT threads allow for secure condensate drain line connections

Can I use this valve on other Allied Air brands

Johnson Controls V-4332-1009 Valve THPU32HP7Y the Copeland 998-0251-00 is ratedThe Johnson Controls V 4332 1009 is a high performance 1 2 inch flare valve engineered for precision fluid control in HVAC terminal units and small air handling systems. This three way mixing valve operates on a 4 to 8 psi spring range, allowing for seamless integration with pneumatic control systems. Designed with a 1. 7 Cv PDTC port (Pressure Dependent to Close) and a 2. 3 Cv PDTO port (Pressure Dependent to Open), it provides balanced flow