Common Questions & Technical Insights How do I know if the 0901755A is compatible with my valve

The "/U" suffix typically denotes a "Universal" or retail-packaged version of the exact same flange adapter used in industrial applications

This diaphragm is specifically designed for Honeywell PP901A and PP901B series units often integrated into pneumatic fume evacuation and pressure regulation systems

replacing part numbers LB-65734B and 43J5601

It maintains the same electrical and mechanical specifications as the legacy part

Hydrotherm 02-2406 Aquastat 320788-702 Common Questions & Technical InsightsThe Hydrotherm 02 2406 Aquastat is a mission critical immersion type temperature controller engineered for high performance hydronic systems. Featuring a Single Pole Single Throw (SPST) switching configuration, this rugged aquastat relay provides precise thermal regulation across a broad 40F to 240F operating range. Designed for direct insertion into the medium, the Hydrotherm 02 2406 functions as a reliable high limit or low limit control, ensuring