Four-way mixing valve ZR 15MA ZR15MA

The Honeywell CENTRA four-way mixing valve ZR is a solid four-way mixing valve made of high-quality grey cast iron GG20 with a control curve in the chrome-plated cylinder plug (DBP and foreign patents), resulting in linear temperature characteristics in the heating flow and return flow boosting to prevent boiler corrosion. The mixing valves are supplied from the factory with the boiler flow set to the left. 
Changeover by simply turning the mixer shaft.

Technical data:
- Housing: Grey cast iron GG 20
- Nominal pressure: PN 6
- Medium: Heating water or for frost and corrosion protection 
  Antifrogen® N water mixture (max. 50%)
- Temperature range: +2...130°C
- Maximum permissible differential pressure: 1.0 bar up to DN 80
- Leakage rate: < 1% of kvs at maximum permissible differential pressure

Note:
To avoid higher leakage rates, mixing valves should not be pressurised with any system inlet pressure. Otherwise, valves are recommended.

Version:
ZR...MA = sleeve version
ZR...FA = flanged version

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