Circulation unit, Mixing function

GRA100

  • Outstanding flow control thanks to the progressive characteristic of the valve
  • Ready to use with most controllers available on the market
  • High class insulation shell
  • One size fits all – auto adapt + progressive characteristic

The ESBE series GRA100 is a circulation mixing unit intended for heating circulations where an outstanding flow and temperature control are required. Equipped with two shut-off valves with thermometers, check valve, high class insulation shell and high efficiency circulation pump. The GRA100 is delivered with a 3-way rotary progressive mixing valve and actuator. The Circulation Mixing Unit ensures best regulation performances independent from flow rate and low oversizing risk thanks to progressive valve characteristic, as well as the working possibility with most controllers available on the market.

Product range

GRA111

Art.no. Reference DN Pump Connection I Connection J Weight [kg] Note
61040100 GRA111 25 Wilo 25/6 G 1" G 1½" 5,7 230V, 3 point control signal ARA661
61040400 GRA111 32 Wilo 25/7,5 G 1¼" G 1½" 6,4 230V, 3 point control signal ARA661

GRA112

Art.no. Reference DN Pump Connection I Connection J Weight [kg] Note
61040500 GRA112 25 Grundfos 25-50 G 1" G 1½" 5,8 230V, 3 point control signal ARA661
61040600 GRA112 32 Grundfos 25-70 G 1¼" G 1½" 6,5 230V, 3 point control signal ARA661

GRA131

Art.no. Reference DN Pump Connection I Connection J Weight [kg] Note
61043200 GRA131 25 Wilo 25/6 G 1" G 1½" 5,7 24V, Proportional signal ARA639
61043300 GRA131 32 Wilo 25/7,5 G 1¼" G 1½" 6,4 24V, Proportional signal ARA639

GRA132

Art.no. Reference DN Pump Connection I Connection J Weight [kg] Note
61043400 GRA132 25 Grundfos 25-50 G 1" G 1½" 5,8 24V, Proportional signal ARA639
61043500 GRA132 32 Grundfos 25-70 G 1¼" G 1½" 6,5 24V, Proportional signal ARA639
Installation support

Guidance for installers, Circulation Units

Operation

Operation

Installation examples

Installation examples
Technical data

Technical data

Pressure class: PN 6
Working pressure: 0,6 MPa
Insulation: EPP λ 0,036 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, Water/Ethanol mixtures: max. 28 %
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

Grundfos UPM3 25-50
Power supply 230 ± 10% V AC, 50/60 Hz
Power consumption 2 — 34 W
Enclosure rating IP X4D
Insulation class F
EEI (Energy Efficiency Index), circulation pump <0,20
Grundfos UPM3 25-70
Power supply 230 ± 10% V AC, 50/60 Hz
Power consumption 2 — 53 W
Enclosure rating IP X4D
Insulation class F
EEI (Energy Efficiency Index), circulation pump <0,20
Wilo Yonos Para 25/6-130 RKA
Power supply 230 ± 10% V AC, 50/60 Hz
Power consumption 3 — 45 W
Enclosure rating IP X4D
Insulation class F
EEI (Energy Efficiency Index), circulation pump <0,20
Wilo Yonos Para 25/7,5 RKA
Power supply 230 ± 10% V AC, 50/60 Hz
Power consumption 3 — 76 W
Enclosure rating IP X4D
Insulation class F
EEI (Energy Efficiency Index), circulation pump <0,21

Integrated valve

ESBE VRG430, DN20-8
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)
ESBE VRG430, DN25-12
max. Differential pressure drop 100 kPa (1 bar)
Close off pressure 200 kPa (2 bar)
Leakrate in % of flow < 0,05%*
* Differential pressure 100kPa (1 bar)

Integrated Actuator

ESBE ARA661
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
ESBE ARA639
Control signal Proportional
Feedback signal, "U" 2-10 V AC
Power supply 24 ± 10% V AC/DC, 50/60 Hz
Power consumtion - Operation AC: 5 W / DC: 2,5 W
Power consumption - Dimensioning AC: 11 VA / DC: 6 VA
Running time 90° 15/30/60/120 s
Enclosure rating IP41
Protection class II
LVD 2014/35/EU
EMC 2014/30/EU
RoHS 2011/65/EU
PED 2014/68/EU, article 4.3
ErP2009/125/EU
ErP2015
EnEV2014

Dimensioning

Dimensioning
Dimensioning guide - Please see data sheet

Wiring

Please see the Installation instruction

Valve characteristics VRG430, DN20

Valve characteristics VRG430, DN20

Valve characteristics VRG430, DN25

Valve characteristics VRG430, DN25
Accessories and Spare Parts

Options

Art No. Reference Designation Note Data sheet Instruction manual
66001100 66001100 GMA411 ESBE GMA411 Hydraulic separation for 1 circulation unit. download download
66001200 66001200 GMA421 ESBE GMA421 Manifold for 2 circulation units, without integrated hydraulic separator function. download download
66001300 66001300 GMA431 ESBE GMA431 Manifold for 3 circulation units, without integrated hydraulic separator function. download download
66001400 66001400 GMA441 ESBE GMA441 Manifold for 4 circulation units, without integrated hydraulic separator function. download download
66001500 66001500 GMA451 ESBE GMA451 Manifold for 5 circulation units, without integrated hydraulic separator function. download download
66001600 66001600 GMA521 ESBE GMA521 Manifold for 2 circulation units, with integrated hydraulic separator function. download download
66001700 66001700 GMA531 ESBE GMA531 Manifold for 3 circulation units, with integrated hydraulic separator function. download download

Spare parts

Art No. Reference Designation Note Data sheet Instruction manual
67000600 67000600 GSP903 ESBE GSP903 Thermometer upgrade set, 2 pcs/package download download
67003400 67003400 GSP911 ESBE GSP911 Ball valves incl thermometer DN 25, 2 pcs/package DN25 download download
67004000 67004000 GSP911 ESBE GSP911 Ball valves incl thermometer DN 32, 2 pcs/package DN32 download download
67000700 67000700 GSP912 ESBE GSP912 Adaptor kit VRG&ARA Adaptor kit for ESBE valves series VRG and Actuators series ARA. DN20-DN32 download download
67004400 67004400 GSP910 ESBE GSP910 Insulation, Circulation unit DN 25/32 download download
67000100 67000100 GSP901 ESBE GSP901 Pump RKA 25/6 Wilo DN25 download download
67000300 67000300 GSP901 ESBE GSP901 Pump RKA 25/7.5 Wilo DN32 download download
67000400 67000400 GSP901 ESBE GSP901 Pump UPM3 25-50 Grundfos DN25 download download
67000500 67000500 GSP901 ESBE GSP901 Pump UPM3 25-70 Grundfos DN32 download download
Download area

Download area

Type Preview Download
Data sheet GRA100 download
Installation instruction GRA100 (de, en, fr, it, pl, sv) download
Installation instruction GRA100 (cs, ee, fi, ru) download
Instruction 2-way valve function download
Installation instruction GRA100, Wilo Pump download
Installation instruction GRA100, Grundfos Pump download
Installation instruction ARA661, 3-point download
Installation instruction ARA639, Proportional download
Certificate Declaration of Conformity, GRA100 download
Certificate Building Product Declaration BPD3, GRA100 download
Certificate EAC certificate (RU) download
Image GRA111, GRA131, high res download
Image GRA112, GRA132, high res download
2D Image GRA111, GRA131 download
2D Image GRA112, GRA132 download
3D drawing (stp file) GRA111, DN25 download
3D drawing (stp file) GRA111, DN32 download
3D drawing (stp file) GRA112, DN25 download
3D drawing (stp file) GRA112, DN32 download
3D drawing (stp file) GRA131, DN25 download
3D drawing (stp file) GRA131, DN32 download
3D drawing (stp file) GRA132, DN25 download
3D drawing (stp file) GRA132, DN32 download
Applications

Applications

Circulation unit mixing valve together with actuator to control cooling systems.

Products

GRA100

Circulation unit with mixing valve together with actuator to control heating systems.

Products

GRA100