Compact automatic flow-balancing valves from Caleffi
Caleffi’s FlowCal compact automatic flow-balancing valves maintain a fixed flow rate within varying system differential pressure ranges with this low-lead, dezincification-resistant brass valve. There is a choice of 16 fixed-flow cartridges, which automatically control the flow rate to each emitter regardless of differential pressure changes. The valves have a compact design featuring 1/2”, 3/4” and 1” union-end connections and choice of NPT, sweat and press fittings. They incorporate a flow cartridge made of an anti-scale, low-noise polymer.