The Herz 1420281 is a genuine Herz differential pressure controller, designed for automatic balancing of differential pressure in heating and cooling systems. Featuring a nominal diameter of DN15 and a nominal pressure of PN16, this controller ensures stable operation with a Kvs value of 2.5 m³/h. It is suitable for maximum operating temperatures up to 120°C and handles a maximum differential pressure of 2.5 bar. Constructed with a durable brass body, stainless steel spindle, and EPDM seals, it offers reliable performance in HVAC applications. Includes measuring points for accurate system monitoring.