Double Circulation unit, Mixing function


  • Compact, all in one design
  • Easy to install
  • Manifold with option of hydraulic separation easily set with a screw
  • Check valve integrated into ball valves return line
  • High flow rate
  • Possible to upgrade with upgrade kit
  • Quick-fit actuator

Double circulation unit Series DDA100 is a compact unit for two separated heating circuits. One with a direct supply, and one with a mixing function. Equipped with two high efficient pumps, a valve with progressive characteristic, actuator, ball valves with thermometers, manifold with by-pass function and a insulation shell. Double circulation unit is a perfect choice for heating pumps, and boilers which are working with radiator and/or underfloor heating.

Product range

DDA111 Reference DN Pump Connection I Connection J Weight [kg] Note
61310100 DDA111 20 Wilo PARA 15/8-75/SC 130mm G 1" G 1" 10,5 One mixing circuit + one direct circuit
Installation support



Installation examples

see data sheet


Technical data

Technical data

Pressure class: PN 6
Working pressure: 0,6 MPa
Insulation: EPP λ 0,041 W/mK
EEI (Energy Efficiency Index), circulation pump: <0,21
Media, Heating water: in accordance with VDI2035
Media, Water/Glycol mixtures: max. 50 % (above 20% admixture, the pump data must be checked)
Media temperature, max.: +110 °C
Media temperature, min.: 0 °C
Ambient temperature, max.: +50 °C
Ambient temperature, min.: 0 °C
Connections, Internal thread (G): ISO 228/1
Connections, External thread (G): ISO 228/1
Material, in contact with water Components: Brass, Cast iron, Steel
Sealing materials: PTFE, Aramid fibre, EPDM

Integrated pump

Wilo PARA 15/8-75/SC 130mm
Pressure class PN10
Power supply 230 ± 10% V AC, 50/60 Hz
Power consumption 10 — 75 W
Enclosure rating IP X4D
Insulation class F
EEI (Energy Efficiency Index), circulation pump ≤0,21 - part 3

Integrated valve

ESBE VRG438, DN20-8 QF
Pressure class PN10
Kvs 8
max. Differential pressure drop 100 kPa (1 bar)
Close off pressure 200 kPa (2 bar)
Leakrate in % of flow <0,05%*
* Differential pressure 100 kPa (1 bar)

Integrated Actuator

ESBE ARA661 Quick Fit
Control signal 3-point SPDT
Power supply 230 ± 10% V AC, 50Hz
Power consumption 5 VA
Running time 90° 120 s
Enclosure rating IP41
Protection class II
LVD 2014/35/EU
EMC 2014/30/EU
RoHS 2015/863/EU
PED 2014/68/EU, article 4.3
ErP 2009/125/EU
ErP 2015
EnEV 2014


Dimensioning guide - Please see data sheet


Please see the Installation instruction
Accessories and Spare Parts

Spare parts

Art No. Reference Designation Note Instruction manual
67000600 67000600 GSP903 ESBE GSP903 Thermometer upgrade set, 2 pcs/package download
67003300 67003300 GSP933 ESBE GSP933 Ball valves incl thermometer DN20 G¾", 2 pcs/package DN20, G¾" download
67003800 67003800 GSP933 ESBE GSP933 Ball valves incl thermometer DN20 G1", 2 pcs/package DN20, G1" download
67006100 67006100 GSP961 ESBE GSP961 Actuator ARA661 120s 230V 3p QF download
67005100 67005100 GSP951 ESBE GSP951 Pump Wilo PARA 15/8-75/SC 130 DN20 download


Art No. Reference Designation Note Instruction manual
66100300 66100300 DVA111 ESBE DVA111 Upgrade kit set with a second mix circuit for transformation from DDA111 to DAA111 download
Download area

Download area

Type Preview Download
Data sheet DDA100 download
Installation instruction DDA100 download
Certificate Declaration of Conformity, DDA100 download
Certificate Declaration of Conformity UK CA, DDA100 download
Certificate Building Product Declaration BPD3, DxA100 download
Certificate EAC certificate (RU) download
Certificate UKRSEPRO certificate (UA) download
Image DDA111, high res download
2D Image DDA111 download
3D drawing (stp file) DDA111, DN20 download