HERZ DZR DRAIN VALVE

The HERZ 2512 Drain Valve from HERZ Armaturen is a DZR brass ball-type valve designed for filling and draining heating or chilled water systems. It provides full-bore flow, ensuring fast system emptying and refilling with minimal pressure loss.

Equipped with a PTFE-sealed spindle and ball, the valve operates smoothly under high pressure and temperature conditions. The red anodized aluminum locking lever offers visual operation feedback.

It is suitable for installation in hydronic systems with water or water-glycol mixtures up to 50%, complying with PN25 performance standards.

  • 🔹 Body: DZR brass CW617N (EN 12165)
  • 🔹 Ball: DZR brass CW617N, full bore, chrome-plated
  • 🔹 Spindle: DZR brass CW614N
  • 🔹 Seal: PTFE (ball and spindle)
  • 🔹 Locking Bolt: Aluminum, red painted
  • 🔹 Connection: BSP internal thread (ISO 228)
  • 🔹 Nominal Pressure: PN25
  • 🔹 Operating Temperature: -30°C to +110°C
  • 🔹 Medium: Water and water-glycol mixtures (25–50%)
  • 🔹 Sizes: DN15 (½”) – DN20 (¾”)
  • 🔹 Operation: Quarter-turn lever
  • 🔹 Corrosion-resistant DZR brass for long service life.
  • 🔹 High-pressure PN25 rating for durable performance.
  • 🔹 Full-bore flow for efficient system draining and filling.
  • 🔹 PTFE sealing ensures smooth, leak-free operation.
  • 🔹 Compact, maintenance-free design.
  • 🔹 Heating and chilled water circuits.
  • 🔹 System fill and drain points in HVAC installations.
  • 🔹 Heat exchangers, manifolds, and plant room applications.
  • 🔹 Suitable for both commercial and residential systems.
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