This valve is specifically designed for Section I steam boilers and pressure vessels where the operating pressure does not exceed 15 PSI

The thermistor violet lead identification simplifies circuit tracing during 24VAC diagnostic procedures

making it a versatile HVAC replacement part

Direct OEM Compatibility: Replaces discontinued MNT2266 and MNT2266B numbers without requiring field modifications or hole redrilling

This 1-inch Watts 40XL-4-150 unit features a 4-inch extension thermostat with a specialized thermo-bonded coating to minimize mineral buildup and ensure consistent thermal response in rigorous environments

Belimo ECON-ZIP-SELF Actuator R-134A This valve is specifically designedThe Belimo ECON ZIP SELF is a comprehensive economizer control kit designed for seamless integration with packaged rooftop units (RTUs). This field installable solution includes the LF24 SR spring return actuator, delivering 35 in lb of torque to ensure reliable damper positioning for free cooling and demand control ventilation (DCV). Built on the ZIP Economy platform, the controller features a high visibility logic module that simplifies setup with a