Motorized zone valve


  • Closing pressure up to 200 kPa
  • Manual operation possible
  • Fast running time
  • Flow direction is from A to B-port.

Series ZRS220 is a range of 2-way motorized zone valve with spring return actuator for use in heating and cooling system. The ZRS220 series is available in DN15-32, PN16 with internal thread connection. The actuator is controlled by 2-point signal with spring return function and is recommended for on/off function, available for 230V AC, 50/60Hz power supply.

The product is intended to be used in closed circuits only.

Product range

ZRS224, Internal thread

ZRS220 front_A-01.png
ZRS120 side_A-01.png Reference DN Kvs max. Differential pressure [kPa] Connection A [mm] B [mm] C [mm] Weight [kg]
43122100 ZRS224 15 3,2 200 G ½" 80 103 21 1,01
43122200 ZRS224 20 4,6 150 G ¾" 89 103 21 1,05
43122300 ZRS224 25 5,7 100 G 1" 93 103 23 1,13
43122400 ZRS224 32 10 80 G 1¼" 105 110 30 1,50
Installation support

Installation example

Installation example


Technical data

Technical data

Pressure class: PN 16
Working pressure: 1,6 MPa
max. Differential pressure drop: see data sheet
Connections: Internal thread (G), ISO 228/1 B
Power supply: 230 V AC, 50/60 Hz
Power consumption: 6 VA
Control signal: 2-point (2-wire spring return)
Enclosure rating: IP44
Protection class: I
Running time: opening: 15 seconds;
closing: 5 seconds
Cable length: 1 meter
Media, Heating water: in accordance with VDI2035
Media, Water/Glycol mixtures: max. 50 %
Media, Water/Ethanol mixtures: max. 28 %
Media temperature, max.: 94 °C
Media temperature, min.: +2 °C
Ambient temperature, max.: +60 ºC
Ambient temperature, min.: 0 ºC
Material, Valve body: Brass CW 614N
Material, Ball: NBR
Material, O-rings: EPDM


PED 2014/68/EU, article 4.3 /
SI 2016 No. 1105 (UK)
LVD 2014/35/EU
EMC 2014/30/EU
RoHS3 2015/863/EU
SI 2016 No. 1101
SI 2016 No. 1091
SI 2012 No. 3032


Please see data sheet


Please see Installation instruction
Accessories and spare parts

Spare parts

Art No. Reference Designation
47120100 47120100 ZRS921 ESBE ZRS921 Actuator 2-point, 230V 2-way
Download area

Download area

Type Preview Download
Data Sheet ZRS220 download
Installation instruction ZRS220 download
Certificate Declaration of Conformity, ZRS220 download
Certificate Declaration of Conformity UKCA, ZRS220 download
Certificate Building Product Declaration BPD3, ZRS220 download
Certificate EAC certificate (RU), ZRS220 download
Certificate Certificate of conformity UA, ZRS220 download
Image ZRS224, high res download
2D Image ZRS224 download