It specifically monitors flue venting

The Resideo 50001137-001 Cover Plate Assembly is a professional-grade solution for technicians looking to provide a clean

This "water seal" prevents high-temperature saturated steam from directly entering the Bourdon tube of your boiler pressure gauge or Pressuretrol controller

For the flare version

Efficient Heat Transfer: Optimized for maximum BTU output

Schneider Electric (Erie) VS2415 Valve Body It specifically monitors flue ventingThe Schneider Electric (Erie) VS2415 Valve Body is a robust, high temperature solution specifically engineered for low pressure steam applications up to 15 psi and hydronic systems. Featuring a 1 inch sweat connection and a high capacity 5. 0 Cv rating, this two position zone valve body is the standard for contractors managing fan coil, baseboard, and air handler terminal units. Built with forged brass and high grade stainless steel trim, the VS2415