The HERZ 4037 from HERZ Armaturen is a precision-engineered 3-way control valve made from DZR brass (CW602N) for corrosion resistance and long-term reliability. It enables linear flow regulation of heating and cooling water or air in closed systems, functioning as either a mixing or diverting valve. The valve features EPDM O-rings, a glass-fiber reinforced Teflon seat, and a stainless-steel spindle for smooth, leak-tight operation. It’s designed for integration with HERZ actuators and automation systems, allowing proportional or linear control.

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.

The HERZ 2137 Series from HERZ Armaturen is a durable brass mixing valve for temperature regulation in heating and cooling systems. Available in three-way and four-way configurations, it provides precise mixing or diverting control. Constructed from forged brass (CW617N) with EPDM seals, the valve supports manual operation via a handle or automation using the HERZ 7712 3-point actuator. With a 90° control stroke and a PN10 rating, it delivers smooth and efficient performance in hydronic circuits.

The HERZ F4037 from HERZ Armaturen is a robust cast iron flanged 3-way valve engineered for mixing or diverting water in central HVAC and industrial systems. With PN16 pressure rating and compatibility with HERZ actuators, it delivers reliable, linear flow control in high-capacity circuits. It is ideal for use in injections, throttle, or distribution configurations within heating and cooling networks.