HERZ DZR AIR VENT

The HERZ 2630 DZR Air Vent from HERZ Armaturen is an automatic air release valve designed to continuously remove trapped air from heating and cooling installations. Constructed from DZR brass (CW617N/CW614N), it provides high corrosion resistance and long service life in closed hydronic systems.

Its float-operated mechanism ensures reliable venting performance, while the ABS cap prevents dirt ingress. The valve includes an optional backflow preventer to facilitate safe maintenance and replacement.

Compliant with EN 1074-4 and ISO 228, the 2630 Series is suitable for HVAC circuits using water or water-glycol mixtures.

  • 🔹 Body: DZR brass CW617N (EN 12165).
  • 🔹 Lid / Backflow Preventer / Adapter: DZR brass CW614N / CW617N.
  • 🔹 Float: Plastic PP.
  • 🔹 Seals: EPDM.
  • 🔹 Cap: ABS plastic (black or red).
  • 🔹 Nominal Pressure: PN12.5.
  • 🔹 Temperature Range: 0°C to +110°C.
  • 🔹 Medium: Water (no steam), glycol mixtures up to 50%.
  • 🔹 Standards: EN 1074-4, ISO 228.
  • 🔹 Reliable automatic air removal prevents corrosion and noise.
  • 🔹 DZR brass construction resists dezincification and scaling.
  • 🔹 Compact design suitable for installation near boilers or risers.
  • 🔹 Optional backflow preventer simplifies service operations.
  • 🔹 Compliant with European HVAC standards.
  • 🔹 Air removal in heating and cooling systems.
  • 🔹 Automatic venting for closed hydronic circuits.
  • 🔹 Use at high points, manifolds, and near boilers or chillers.
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