Weil McLain 383-500-601 Temperature Sensor the switch internal diaphragm or

the switch internal diaphragm or contacts have likely failed

Engineered for low-pressure steam systems

Whether you are performing routine preventative maintenance or addressing a ruptured diaphragm in a critical pneumatic actuator

Non-Linting Design: Features an aerated pilot secondary air intake that prevents lint buildup

This cover is intended for "blind" operation

Weil McLain 383-500-601 Temperature Sensor the switch internal diaphragm orAs a seasoned technician, you know that keeping a hydronic system in check starts with reliable data feeding into the control module. The Weil McLain 383 500 601 is a high precision system temperature sensor designed as a direct replacement component for Ultra Gas and commercial boiler units. This 12k Ohm resistance NTC sensor provides the real time thermal feedback required for proper mod con operation, ensuring the boiler control module can