Preassembled pump group for regulation and circulation of fluid at variable temperature. Allows the circulation of the thermal fluid, coming from the primary circuit, by adjusting its temperature by means of a motorized mixing valve. It is used in general heating and radiant panel systems with flow temperature regulation based on room and outside temperature (also called outside or weather or climate compensated control). The group is composed of a pump, flow/return shut-off valves, motorizable mixing valve, flow/return temperature gauges, anti-thermosiphon check valve, thermal insulation. 07G-09G-03G-05G.DN25 series are fitted for the installation of a differential by-pass valve, while in the 37G-39G-25G-33G-35G.DN25 series the differential by-pass valve can be installed only externally. The 25G.DN25 series is fitted for the installation of a 110 or 130 mm energy metering device. 07G-09G-37G-39G-25G.DN25 series are reversible (the flow line can be exchanged with the return line).
Working temperature range: 590 °C
Max working pressure: 10 bar
Connections: female EN 10226-1/male ISO 228-1
Connection centre distance: 125 mm
Pump: Grundfos UPM3 AUTO L 25-70 180
Grundfos UPM3 AUTO 25-70 180
Wilo Para 25-180/7-50/SC-12
Grundfos UPSO 25-65 180 (Extra EU)
Suitable fluids: water, glycol solutions (max 30%)
Temperature gauge scale: 0120 °C
| CODICE_ARTICOLO | size | Kv | pump | NPC |
|---|---|---|---|---|
| x | - | - | - | - |
| 37G02500U | G 1 1/2 M - G 1 F | 6 | UPM3 AUTO 25-70 180 | 1 |
| 37G02500H | G 1 1/2 M - G 1 F | 6 | Para 25-180/7-50/SC-12 | 1 |
| 37G02500K | G 1 1/2 M - G 1 F | 6 | UPML AUTO 25-105 180 | 1 |
| 37G02500C | G 1 1/2 M - G 1 F | 6 | (Extra EU) UPSO 25-65 180 | 1 |
| 37G02500X | G 1 1/2 M - G 1 F | 6 | SENZA POMPA | 1 |
| 39G02500U | G 1 1/2 M - G 1 F | 10 | UPM3 AUTO 25-70 180 | 1 |
| 39G02500H | G 1 1/2 M - G 1 F | 10 | Para 25-180/7-50/SC-12 | 1 |
| 39G02500K | G 1 1/2 M - G 1 F | 10 | UPML AUTO 25-105 180 | 1 |
| 39G02500C | G 1 1/2 M - G 1 F | 10 | (Extra EU) UPSO 25-65 180 | 1 |
| 39G02500X | G 1 1/2 M - G 1 F | 10 | SENZA POMPA | 1 |
Instruction booklet 
Data sheet 
