HERZ Differential Pressure Controller – Cast Iron Body (F 4007 Series)
Flanged differential pressure controller maintaining constant system pressure balance.
HERZ DZR PICV (STANDARD)
The HERZ 4006/4206 Standard PICV from HERZ Armaturen is a compact, high-precision balancing and control valve that automatically maintains a constant design flow rate, independent of pressure variations in the system. It provides hydronic stability, operational simplicity, and extended reliability.
- 🔹 DZR brass housing with EPDM diaphragm and seals.
- 🔹 Stainless-steel spindle and internal components.
- 🔹 4 mm actuator stroke; compatible with HERZ actuators.
- 🔹 Linear control characteristic.
- 🔹 Flow capacity: up to 5200 l/h.
- 🔹 Differential pressure: up to 6 bar.
- 🔹 Operating pressure: 25 bar.
- 🔹 Temperature range: -20°C to 130°C.
- 🔹 Compact and easy to install in return or supply lines.
- 🔹 Pressure-independent flow regulation ensures constant hydronic balance.
- 🔹 Reduces commissioning time and eliminates manual balancing valves.
- 🔹 Minimizes system noise and prevents overflows or undersupply.
- 🔹 Delivers energy-efficient comfort and operational reliability.
- 🔹 Fan coils, chilled beams, radiant panels, and air-handling units.
- 🔹 Suitable for commercial, institutional, and residential hydronic networks.
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PN25 ductile iron flanged commissioning valve for high-pressure HVAC and process water systems