
HERZ Brass 3-Way Control Ball Valve (2137 Series)
Forged brass 3-way mixing and diverting valve
The HERZ Calis TS RD from HERZ Armaturen is a thermostatically operated 3-way valve designed for precise temperature regulation in small-scale heating and cooling applications. Its brass body, stainless-steel spindle, and EPDM seals ensure long-term performance. The valve integrates easily with HERZ thermostatic heads, electronic controllers, or thermal drives, providing reliable automatic operation. It is ideal for radiator control, mixing circuits, and single-pipe heating systems.

Forged brass 3-way mixing and diverting valve

DZR brass 2-way control ball valve for hydronic and HVAC applications

Ductile iron lever-operated lug-type butterfly valve for HVAC and water applications.