Siemens Building Technology VXG44.15-4 Valve Body 326058-755 What is the difference between

What is the difference between an A belt and a B belt on this sheave

this B5V Gripbelt sheave is manufactured from high-grade gray cast iron and statically balanced to reduce vibration and extend bearing life

Key Benefits Precision Balance: Factory-aligned 5-blade design reduces mechanical stress on the motor shaft

ensuring a secure and conductive connection to the motor frame

Siemens Building Technology VXG44.15-4 Valve Body 326058-755 What is the difference betweenThe Siemens Building Technology VXG44. 15 4 Valve Body is a high performance 1 2 inch 3 way seat valve engineered for precision fluid control in closed circuit HVAC systems. Rated with a 4. 6 Cv flow capacity (4. 0 Kvs), this bronze (CC491K) valve body is designed to handle chilled water and low temperature hot water applications with a maximum operating pressure of PN16 (232 psig). The unit features external metric threaded connections (ISO 228 1)