Caleffi North America has expanded its product offering with a Y-pattern dynamic balancing valve. The new 128 FlowCal Series valves with DZR low-lead brass bodies are now in stock and available for order in North America. This valve series was developed to make flushing, commissioning, cleaning and balancing easy with a cartridge that can be temporarily removed while the circuit is flushed. Factory-installed pressure temperature ports allow for quick flow verification, all in a compact design, the company states.