Circulation unit, Mixing function
GRA200, GRA300
- Outstanding flow control thanks to the progressive characteristic of the valve
- 2 different types of actuator: 3-point or proportional control signal (depending on version)
- QuickFit interface between actuator and valve - no tools needed
- 3 different high efficiency circulation pumps
- Available in 3 sizes: DN20, DN25, DN32
- High class insulation shell
- Pretested and ready to use
- Compact design
The ESBE series GRA200 and GRA300 are circulation units intended for heating circuits where an outstanding flow and temperature control are required. Equipped with two shut-off valves with thermometers, check valve, high class insulation shell and a high efficiency circulation pump. The units are delivered with a 3-way rotary progressive mixing valve which ensures best regulation performances independent from flow rate and low oversizing risk.
The Series GRA200 comes with actuator series ARA661 with 3-point control signal, 230V AC, or actuator series ARA639 proportional control signal,24V AC/DC. The circulation units are available in DN25 and DN32 with either a Wilo or Grundfos pump.
The Series GRA300 with very compact dimensions are equipped with actuator series ARA661. Series GRA300 is available in DN20 with a Wilo pump with PWM control signal.
GRA211



Art.no. | Reference | DN | Pump | Connection I | Connection J | Weight [kg] | Note |
61042100 | GRA211 | 25 | Wilo PARA 25/6 | G 1" | G 1½" | 5,8 | Replaces 61040100 |
61042200 | GRA211 | 32 | Wilo PARA 25/8 | G 1¼" | G 1½" | 6,2 | Replaces 61040400 |
GRA212



Art.no. | Reference | DN | Pump | Connection I | Connection J | Weight [kg] | Note |
61042300 | GRA212 | 25 | Grundfos UPM3 AUTO 25-50 | G 1" | G 1½" | 5,9 | Replaces 61040500 |
61042400 | GRA212 | 32 | Grundfos UPM3 AUTO 25-70 | G 1¼" | G 1½" | 6,1 | Replaces 61040600 |
GRA231



Art.no. | Reference | DN | Pump | Connection I | Connection J | Weight [kg] | Note |
61042500 | GRA231 | 25 | Wilo PARA 25/6 | G 1" | G 1½" | 5,8 | Replaces 61043200 |
61042600 | GRA231 | 32 | Wilo PARA 25/8 | G 1¼" | G 1½" | 6,2 | Replaces 61043300 |
GRA232



Art.no. | Reference | DN | Pump | Connection I | Connection J | Weight [kg] | Note |
61042700 | GRA232 | 25 | Grundfos UPM3 AUTO 25-50 | G 1" | G 1½" | 5,9 | Replaces 61043400 |
61042800 | GRA232 | 32 | Grundfos UPM3 AUTO 25-70 | G 1¼" | G 1½" | 6,1 | Replaces 61043500 |
GRA311



Art.no. | Reference | DN | Pump | Connection I | Connection J | Weight [kg] | Note |
61043600 | GRA311 | 20 | Wilo PARA STG 15/8 | G ¾" | G 1" | 4,5 | Replaces 61043100 |
Install ESBE Circulation unit
Operation

Installation example

Documents
Technical data
Pressure class: | PN 10 |
Working pressure: | 1,0 MPa |
Insulation: | EPP λ 0,036 W/mK |
Media, Heating water: | in accordance with VDI2035 |
Media, Water/Glycol mixtures: | max. 50 % ; water / glycol mixtures are affecting the pump performance. In case of Applications where water / glycol mixtures are used, pump performance should be considered. |
Media temperature - Series GRA211, GRA231: | min. +5°C, max. +100°C |
Media temperature - Series GRA212, GRA232: | min. +5°C, max. +110°C |
Media temperature - Series GRA300: | min. +5°C, max. +100°C |
Ambient temperature: | min. 0°C, max. +55°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 25-130/6-43/SC | |
Power supply: | 230 ± 10% V AC, 50/60 Hz |
Power consumption: | 3 — 43 W |
Enclosure rating: | IP X4D |
Insulation class: | F |
EEI (Energy Efficiency Index), circulation pump: | <0,20 |
Wilo PARA 25-130/8-75/SC | |
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 |
Grundfos UPM3 AUTO 25-50 130 | |
Power supply: | 230 ± 10% V AC, 50/60 Hz |
Power consumption: | 4 — 33 W |
Enclosure rating: | IP44 |
EEI (Energy Efficiency Index), circulation pump: | <0,20 |
Grundfos UPM3 AUTO 25-70 130 | |
Power supply: | 230 ± 10% V AC, 50/60 Hz |
Power consumption: | 2 — 52 W |
Enclosure rating: | IP44 |
EEI (Energy Efficiency Index), circulation pump: | <0,20 |
Wilo PARA STG 15-130/8-60/0 | |
Power supply: | 230 ± 10% V AC, 50/60 Hz |
Power consumption: | 2 — 60 W |
Enclosure rating: | IP X4D |
Insulation class: | F |
EEI (Energy Efficiency Index), circulation pump: | <0,20 |
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) |
ESBE VRG432, 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) |
ESBE VRG432, DN25-12 QF | |
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 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 |
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 |
ESBE ARA639 Quick Fit | |
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
Spare parts
Options
Download area
Type | Preview | Download |
Data sheet | GRA200, GRA300 |
|
Installation instruction | GRA200 |
|
Installation instruction | GRA300 |
|
Installation instruction | GRA200 (DN25/DN32), Wilo Pump |
|
Installation instruction | GRA200 (DN25/DN32), Grundfos Pump |
|
Installation instruction | GRA300 (DN20), Wilo Pump |
|
Certificate | Declaration of Conformity DoC, GRAx00 |
|
Certificate | Declaration of Conformity DoC (UK), GRAx00 |
|
Certificate | Building Product Declaration, GRA200 |
|
Certificate | Building Product Declaration, GRA300 |
|
Image | GRA211 & GRA231, high res |
|
Image | GRA212 & GRA232, high res |
|
Image | GRA311, high res |
|
2D Image | GRA211 & 231 |
|
2D Image | GRA212 & GRA232 |
|
2D Image | GRA311 |
|
3D drawing (stp file) | GRA211 & GRA231, DN25 |
|
3D drawing (stp file) | GRA211 & GRA231, DN32 |
|
3D drawing (stp file) | GRA212 & GRA232, DN25 |
|
3D drawing (stp file) | GRA212 & GRA232, DN32 |
|
3D drawing (stp file) | GRA311, DN20 |
|
Applications
Circulation unit mixing valve together with actuator to control cooling systems.
Products
GRA200, GRA300Return temperature unit designed for solid fuel applications, where a return temperature control is required.
Return temperature unit designed for solid fuel applications, where a return temperature control is required.
Products
GST200Circulation unit with mixing valve together with actuator to control heating systems.
Products
GRA200, GRA300Quick links
New generation ESBE circulation units |