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tubra®-PGF-V
Solid fuel boiler groups DN 25
Pump group for solid fuel boilers with thermostatic adjustable return temperature boost 40 – 70 °C.
- power range up to 40 kW
- Compact thermal control valve adjustable from 40 – 70 °C, kvs=4.6 m³/h
- integrated temperature sensors – position in flow and return
- smooth running ball valves with floating ball
- ball valve spindles exchangeable from the front
- integrated fitting piece for heat meter or tubra®-mag-jet magnetite separator
- thermal insulation compliant with GEG
tubra®-PGF-V
The PGF-V pump group for solid fuel boilers with thermostatic return temperature boosting ensures reliable maintenance of the return temperature between 40 °C – 70 °C. The return temperature can be adjusted via a thermostatic valve.
tubra® variants DN 25 Groups
The compact boiler group is available with different pumps.
- Pumps: Wilo Para and without pump
- Regulation: with thermostatic adjustable
Return temperature increase 40 – 70 °C
| Typ | tubra®-PGF T / C | tubra®-PGF V | tubra®-PGF E / KR | tubra®-PGF E / KR |
|---|---|---|---|---|
| Nominal size | DN 20 | DN 25 | DN 25 | DN 32 |
| Nominal capacity at 2.5 m residual head | 30 kW kvs 3,2 | 40 kW kvs 4,6 | 70 kW kvs 8 | 80 kW kvs 12 |
| Dimensions H x W x D | 405 x 330 x 180 mm | 440 x 250 x 210 mm | 440 x 250 x 210 mm | 440 x 250 x 210 mm |
| Center distance | 125 mm | 125 mm | 125 mm | 125 mm |
| max. working pressure | 3 bar | 3 bar | 3 bar | 3 bar |
| max. working temperature | 115 °C | 115 °C | 115 °C | 115 °C |
| Temperature return flow | 60 °C | 40 - 70 °C | PGF E: Actuator 230V 3-point PGF KR: Actuator with integrated fixed-value control 20-90 °C | PGF E: Actuator 230V 3-point PGF KR: Actuator with integrated fixed-value control 20-90 °C |
| Connections tank side | Rp 3/4 | Rp1 / G1 1/2 AG | Rp1 / G1 1/2 AG | Rp1 / G1 1/2 AG |
| Connections tank side | Rp 3/4 | G1 1/2 AG | G1 1/2 AG | G2 AG |
| Gravity brake | 2 x 20 mbar | 20 mbar | 20 mbar | 20 mbar |
| Flow coefficient mixer | 3,2 m3/h | 4,6 m3/h | 8 m3/h | 12 m3/h |
tubra® accessory selection
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Product portfolio
Boiler circuit
The pump groups variants for solid fuel boilers
Solid fuel boiler groups DN 25/32
tubra®-PGF-E/PGF-KR
for solid fuel boilers with mixer and servomotor for electronic return temperature control
Return flow lifting groups DN 20/25/32
tubra®-RHG T/E/KR
Thermal/electronic Controlled solid fuel boiler groups
