One-pipe steam systems typically require the 1PS series valves and specialized operators

eliminating the need for field modifications common with universal valves

A current relay like the 117U4131 operates differently than a PTC thermistor

this motorized valve actuator minimizes gear train wear and extends the service life of the motor

Fasco A193 Motor 320819-301 One-pipe steam systems typically requireThe Fasco A193 Motor is a high performance draft inducer blower assembly engineered for precision and reliability in demanding heating applications. Operating at 208 240V, this 1 35 HP shaded pole motor delivers a consistent 3480 RPM, making it a critical component for maintaining proper combustion airflow within residential and commercial furnace repair projects. Designed as a direct OEM replacement for Trane 7021 8591 and X38040050010, the A193