
HERZ Differential Pressure Controller – DZR Brass Body (4002 / 4202 Series)
Compact differential pressure controller with adjustable setpoint for small and medium systems.
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.

Compact differential pressure controller with adjustable setpoint for small and medium systems.

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