McDonnell & Miller SA53-6 Valve AssemblyMcDonnell & Miller SA53 6 Valve Assembly delivers reliable control for your boiler system. Includes gasket 342800 to ensure a tight seal and long lasting performance in demanding applications. Designed as a true replacement part for 53 series industrial boilers, this valve assembly fits seamlessly into existing McDonnell & Miller hydronic systems, providing consistent pressure control and safe operation. The combination of durable valve components and

this HVAC limit switch protects your furnace from overheating and helps maintain steady performance

This 2-Pole

The unit includes a 4-inch intake air hood and is designed to replace CAS-3 and CAS-4 for simple retrofits

Durable construction withstands demanding industrial environments

the E300 simplifies expansion of monitoring channels and control outputs without rewriting logic

Low flow rate activation for timely controller signals

CE Approved

A smart upgrade for existing oil/gas furnaces

The Erie Controls VT2212G13B020 Zone Valve Body Assembly delivers precise hydronic flow control for heating systems

The Maxitrol R11110-515 Gas Pressure Regulator Spring (MROSCS Leaf Class) is engineered for durability and consistent performance

Bacharach 104-1797 thermocouple delivers reliable

Intuitive labeling and clear wiring paths to speed installs