Armstrong International D24659 Thermostatic Operator Freon This valve features standard 3/8"

This valve features standard 3/8" ODF inlet and 3/8" ODF outlet sweat connections

The 63K46 is an L70-28F sensor

the MARS 44513 provides the overhead required for reliable 24-volt control circuits

Simplified Installation: Standard two-wire termination allows for fast field deployment by service technicians

Armstrong International D24659 Thermostatic Operator Freon This valve features standard 3/8"The Armstrong International D24659 (also identified by part number 6005639) is a heavy duty LV 4W Remote Wall Mounted Thermostatic Operator designed for precise temperature regulation in hydronic heating systems. This non electric thermostatic head features a remote wall mounted sensor and a liquid filled element, ensuring reliable valve actuation based on ambient room conditions rather than local pipe temperature. Built for compatibility with