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tubra®-PGF-C / PGF-T
Solid fuel boiler groups DN 20
Pump assembly DN 20 for solid fuel boilers / stoves with thermostatic return temperature increase. Fixed value 60 °C.
- power range up to 30 kW
- compact fixed-value control valve with kvs = 3.2 m³/h
- integrated expansion element with fixed value 60 °C
- optional (PGF-C) with integrated controller for solid fuel boiler Control Deltatherm FK with speed-controlled pump and target temperature control
- thermal insulation compliant with GEG
tubra®-PGF-C
The basic design is identical to the PGF-T, but with electronic boiler temperature control. The PGF-C provides the required operating conditions of the solid fuel boiler with a fixed return temperature of 60 °C.
tubra®-PGF-T
The PGF-T pump group for solid fuel boilers with thermostatic return temperature boosting controls the return temperature to a fixed value of 60 °C. For this purpose, an expansion element is used in the mixer, which ensures that the return temperature always remains suitable.
The compact boiler group is available with different pumps.
- Pumps: Wilo Para
- Control: with thermostatic return temperature increase ( fixed value 60 °C ) and electronic boiler temperature control
| 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
The pump groups variants for solid fuel boilers
Solid fuel boiler groups DN 25
tubra®-PGF-V
for solid fuel boilers with thermostatically adjustable return temperature increase 40 – 70 °C
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/electronically controlled solid fuel boiler groups
