ZONE VALVE - BALL VALVE COMPRESSION ENDS
HZ1 202 - HZ1 204
Compact ball valve design that allows switch-over time for rotation between A / B zones.
Available with male thread or with compression ends and it is compatible with HER motor actuator HZ1 (12s - 90°).
Designed for a multitude of applications including heat pump systems, floor heating, and HVAC setups, our ball valves serve as the cornerstone of zone management.
  • DIMENSIONS
  • USAGE
  • QUALITY
  • TECHNICAL DATA
  • INSTALLATION
  • DOCUMENTATION
ART. IDENT EAN DN Cu
[mm]
Sw
[mm]
Sw1
[mm]
H
[mm]
H1
[mm]
L
[mm]
L1
[mm]
L2
[mm]
D
[mm]
HZ1 202 1241202 3838963240594 20 22 32 9 84 43 84 42 30 6
HZ1 203 1241203 3838963240600 25 28 41 9 94 46,5 99 49,5 30 6
HZ1 204 1241204 3838963240617 32 35 46 9 100 57 114 57 30 6
HERZ Zone Valves are used in heating and cooling systems such as heat pump systems, floor heating and HVAC
applications as a zone management element.

HERZ ball valve is made from high-quality brass and has identical kvs value through AB-A and AB-B. Valves are
available from dimension DN20 up to DN32.

Designed for a multitude of applications including heat pump systems, floor heating, and HVAC setups, our ball valves serve as the cornerstone of zone management: 

Usage in heat pump systems: diverting the flow from the preparation of domestic hot water and heating circuit:
Nominal pressure: PN10
Max. operating temperature: 110°C (no steam)*
*when Zone valve is used in combination with HERZ motor
actuator, ambient temperature must not exceed 50°C
Min. operating temperature: 0°C (water 0,5°C)
Working stroke angle (turn): 90°
Opening torque (at PN10): ≤ 5 Nm
Leakage rate: 0%

Medium:
Heating water purity in accordance to ÖNORM H 5195 and VDI- Standard 2035. The use of ethylene, or propylene glycol in a mixing ratio of 25- 50% is allowed. EPDM gaskets will be affected by mineral oils lubricants and thus lead to failure of the EPDM seals. Please refer to the manufacturer’s documentation when using ethylene glycol products for frost and corrosion protection.