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
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 |
Installation support
Guidance for installers, Circulation Units
Operation
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 Hybrid | |
| Power supply: | 230 ± 10% V AC, 50/60 Hz |
| Power consumption: | 2 — 52 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 VRG432, 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 VRG432, 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 |
Conformity
SI 2016 No. 1105
EMC 2014/30/EU
RoHS3 2015/863/EU
ErP 2009/125/EU
SI 2016 No. 1091
SI 2012 No. 3032
SI 2010 No. 2617
Dimensioning
Wiring
Accessories and spare parts
Options
| Art No. | Reference | Designation | Note | Data sheet | Instruction manual | |
 |
66001100 | GMA411 | ESBE GMA411 Hydraulic separation for 1 circulation unit. | DN25/32 |  |
|
 |
66001200 | GMA421 | ESBE GMA421 Manifold for 2 circulation units, without integrated hydraulic separator function. | DN25/32 | |
|
 |
66001300 | GMA431 | ESBE GMA431 Manifold for 3 circulation units, without integrated hydraulic separator function. | DN25/32 | |
|
 |
66001400 | GMA441 | ESBE GMA441 Manifold for 4 circulation units, without integrated hydraulic separator function. | DN25/32 | |
|
 |
66001500 | GMA451 | ESBE GMA451 Manifold for 5 circulation units, without integrated hydraulic separator function. | DN25/32 | |
|
 |
66001600 | GMA521 | ESBE GMA521 Manifold for 2 circulation units, with integrated hydraulic separator function. | DN25/32 | |
|
 |
66001700 | GMA531 | ESBE GMA531 Manifold for 3 circulation units, with integrated hydraulic separator function. | DN25/32 | |
|
Spare parts
| Art No. | Reference | Designation | Note | Data sheet | Instruction manual | |
 |
67000600 | GSP903 | ESBE GSP903 Thermometer upgrade set, 2 pcs/package | |
|
|
 |
67003400 | GSP911 | ESBE GSP911 Ball valves incl thermometer DN 25, 2 pcs/package | DN25 | |
|
|
67004000 | GSP911 | ESBE GSP911 Ball valves incl thermometer DN 32, 2 pcs/package | DN32 | |
|
 |
67000700 | GSP912 | ESBE GSP912 Adaptor kit VRG&ARA | Adaptor kit for ESBE valves series VRG and Actuators series ARA. DN20-DN32 | |
|
 |
67000300 | GSP901 | ESBE GSP901 Pump RKA 25/7.5 Wilo | DN32 | |
|
 |
67000400 | GSP901 | ESBE GSP901 Pump UPM3 25-50 Grundfos | DN25 | |
|
|
67000500 | GSP907 | ESBE GSP907 Pump Grundfos Hybrid UPM3 25-70 | DN25-DN32 | |
|
Download area
Download area
| Type | Preview | Download |
| Data sheet | GRA100 |
|
| Installation instruction | GRA100 (de, en, fr, it, pl, sv) |
|
| Installation instruction | GRA100 (cs, ee, fi, ru) |
|
| Instruction | 2-way valve function |
|
| Installation instruction | GRA100, Wilo Pump |
|
| Installation instruction | GRA100, Grundfos Pump |
|
| Installation instruction | ARA661, 3-point |
|
| Installation instruction | ARA639, Proportional |
|
| Certificate | Declaration of Conformity, GRA100 |
|
| Certificate | Declaration of Conformity UKCA, GRA100 |
|
| Certificate | Building Product Declaration BPD3, GRA100 |
|
| Certificate | EAC certificate (RU), GRA100 |
|
| Certificate | Certificate of conformity UA, GRA100 |
|
| Image | GRA112, GRA132, high res |
|
| 2D Image | GRA112, GRA132 |
|
| 3D drawing (stp file) | GRA112, DN25 |
|
Related materials
Related products
Applications
Applications
Circulation unit mixing valve together with actuator to control cooling systems.
Products
GRA200, GRA300
Circulation unit with mixing valve together with actuator to control heating systems.
Products
GRA200, GRA300Quick links