Powerex BT012900AV 3VX Belt for their 10hp to 40hp Enclosed Oil Free Scroll Air Compressors
Powerex recommends changing this belt every 5,000 hours of operation or once per year. The tension of the V-belt should be adjusted during the initial stage and inspected every 2,500 hours afterwards. Proper belt tension is just enough to prevent slippage.
Most Powerex compressor systems that use the BT012900AV belt required multiple belts per scroll compressor pump, so if you have a duplex scoll system with multiple internal pumps you may need to order Qty 4 or more at a time.
When changing the belts it may also be time to replace the internal tip seals or re-grease your pump using Powerex's IP616201AJ Grease Gun Kit. It is also recommended to change the air filter and clean the blower fan and compressor fins.
The BT012900AV 3VX belt was commonly used on the below air compressor models. Note you will need to order two belts per pump, so some scroll air compressors will require at least 4 belts or more: