Trane CTR3018 Contactor 319848-301 Can I use these flanges

Can I use these flanges on high-temperature hydronic heating systems

or audible humming during operation

High-Flow Capacity: 3/4" x 3/4" NPT threading facilitates maximum BTU throughput for large-scale heat exchangers

ensuring the circuit is interrupted well before winding insulation reaches critical failure temperatures

Trane CTR3018 Contactor 319848-301 Can I use these flangesThe Trane CTR3018 Contactor is a heavy duty, 3 pole HVAC contactor engineered for high demand switching in commercial and industrial Trane equipment. Rated for a 32 Amp Full Load Amperage (FLA), this 32A 3P contactor with auxiliary contacts provides reliable power management for compressors, condensers, and high capacity air handlers. As a direct Trane OEM replacement part, the CTR3018 ensures electrical integrity and precise mechanical operation