McDonnell & Miller P-3-SS Probe Rod

The McDonnell & Miller P-3-SS (Part Number 179540) is a high-performance 36-inch 316 stainless steel probe rod engineered for precision liquid level management. Designed specifically for use with RS series sensors, this PTFE coated probe provides superior resistance to corrosion and chemical degradation, making it ideal for the demanding environments of industrial boilers and storage tanks. The specialized Teflon coating is a critical feature, as it eliminates the risk of false signals caused by moisture bridging or scale buildup along the rod, ensuring the conductance-type level control system receives accurate data. This liquid level control probe is fully compatible with PCH, PCL, and LPC-2000 series controls. For custom applications, the rod can be cut to length in the field to match specific tank depths. This is a rugged, technician-grade component built to maintain consistent system integrity in high-pressure or high-temperature HVACR operations.

• Corrosion Resistance: Built from 316 stainless steel to withstand harsh boiler chemicals and oxidation.
• Signal Integrity: The PTFE coating prevents bridging, ensuring that the level control only triggers when the liquid actually contacts the probe tip.
• Universal Compatibility: Seamlessly integrates with McDonnell & Miller RS sensors and multiple control modules like the LPC-2000.
• Field Adjustable: The 36-inch length can be trimmed to fit the exact requirements of your specific installation site.

• Which sensors are compatible with the P-3-SS? It is designed for use with McDonnell & Miller RS-1-BR-1 and other RS series remote sensor holders.
• Why is the PTFE coating necessary? The coating acts as an insulator to prevent "false" conductive paths, which can occur if steam or debris coats an untreated rod.
• Can this probe be used in high-temperature applications? Yes, the 316 stainless steel and Teflon construction are rated for standard industrial hydronic and steam system temperatures.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.