This cast iron steam valve is rated for saturated steam service and is commonly field-configured with various pilots

Structural Integrity: Designed to resist deformation under high thermal loads

Most failures are caused by improper leveling during installation

high-specification solution for modern HVAC electrical protection

This is a 12K NTC thermistor

MARS 50319 Transformer R-134A This cast iron steam valveThe MARS 50319 Transformer is a heavy duty, multi tap HVAC control transformer engineered for versatile voltage step down in commercial and residential climate systems. As a 50VA NEMA Class II power source, this unit provides the necessary 24VAC output to drive thermostats, contactors, and integrated circuit boards. The primary side supports 120 208 240 480V inputs, making it a "truck stock" essential that can replace a wide range of OEM or Honeywell