Circulation unit, Mixing function

GRF100

  • Perfect control thanks to progressive valve characteristic
  • 180mm pump ready – be free to use favorite pump manufacturer
  • Control the system manually, via actuator or even controller
  • High class, adjustable insulation shell
The ESBE series GRF100 is a circulation mixing unit which is intended for heating circulations where the flow and temperature control are required. Equipped with two shut-off valves with thermometers, check valve and high class isolation shell. The GRF100 is delivered with the 3-way rotary progressive mixing valve, which ensures low oversizing risk and best regulation performances independent from flow rate. 

The ESBE Circulation Unit GRF100 is ready to work with 180mm pumps. The smart adjustable insulation shell makes it sure that any kind of pump will be isolated in a right way. Choose the best system control and select one of the actuators or controllers from ESBE program.

Product range

GRF1x1

GRF111
GRF121
Art.no. Reference DN Connection I Connection J Weight [kg] Note
61240100 GRF111 25 G 1" G 1½" 3,8
61241100 GRF121 25 G 1" G 1½" 4,2 230V, 3 point control signal ARA661
Installation support

Installation examples

Installation examples

Documents

Technical data

Technical data

Pressure class: PN 6
Working pressure: 0,6 MPa
Insulation: EPP λ 0,036 W/mK
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, GRF121: max. +50°C/min. 0°C
Ambient temperature, GRF111: max.°C/min.°C depends on the electronic equipment
Connections, Internal thread (G): ISO 228/1
Connections, External thread (G): ISO 228/1
Material, in contact with water Components: Brass, steel
Sealing materials: PTFE, Aramid fibre, EPDM

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)

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

Conformity

Conformity
LVD 2014/35/EU
EMC 2014/30/EU
RoHS 2011/65/EU
PED 2014/68/EU, article 4.3
EnEV 2014

Characteristics

Characteristics

Valve characteristics VRG430, DN20

Valve characteristics VRG430, DN20
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
67000700 67000700 GSP912 ESBE GSP912 Adaptor kit VRG&ARA Adaptor kit for ESBE valves series VRG and Actuators series ARA. DN20-DN32 download download
67002000 67002000 GSP910 ESBE GSP910 Insulation circulation unit FLEXI download download
Download area

Download area

Type Preview Download
Data sheet GRF100 download
Data sheet GRF100 (cs) download
Installation instruction GRF100 (de, en, fr, it, pl, ru, sv) download
Installation instruction GRF100 (si) download
Certificate Declaration of Conformity, GRF100 download
Certificate Declaration of Conformity UK CA, GRF100 download
Certificate Building Product Declaration BPD3, GRF100 download
Certificate EAC certificate (RU) download
Image GRF111, high res download
Image GRF121, high res download
2D Image GRF111 download
2D Image GRF121 download
3D drawing (stp file) GRF111, DN25 download
3D drawing (stp file) GRF121, DN25 download