Flow-balancing valve from Caleffi

The FlowCal valve from Caleffi automatically maintains the flow rate to each terminal unit regardless of differential pressure changes across the circuits. FlowCal has an exclusive flow cartridge made of a scale-resistant, low-noise polymer and a compact, low-lead brass valve body. The valve has union end connections for easier installation and maintenance. There are 16 flow rates available ranging from 1/2 to 10 gpm and connection sizes range are 1/2”, 3/4” and 1” in NPT and sweat connections, as well as 3/4” press connections.