Pumpfix Constant Basic DN25
PF 2520B - PF2521B
PF 2520B - PF2521B
The pumping set for low-temperature mixed heated circuits allows for the regulation of constant temperature inflow. Suitable for underfloor heating of smaller areas. All CONSTANT DN25 pumping sets have a built-in adjustable bypass from 0 to 50% to protect against excessively high inflow temperatures.
Components:
ball valve with thermometer (0 – 120°C) and check valve - BLUE
ball valve with thermometer (0 – 120°C) - RED
circulation pump
welded steel spacer (black)
3 way thermostatic valve
thermostatic head with contact sensor
insulating shell
connection G3/4” for installation of overflow valve
Components:
ball valve with thermometer (0 – 120°C) and check valve - BLUE
ball valve with thermometer (0 – 120°C) - RED
circulation pump
welded steel spacer (black)
3 way thermostatic valve
thermostatic head with contact sensor
insulating shell
connection G3/4” for installation of overflow valve
| ART. | IDENT | DN | PN | EAN | CIRCULATION PUMP | Kvs | L [mm] |
H [mm] |
L1 [mm] |
L2 [mm] |
L3 [mm] |
L4 [mm] |
L5 [mm] |
L6 [mm] |
G* [in] |
G1** [in] |
| PF 2521B | 1741521 | 25 | 10 | 3838963239642 | WILO PARA 25-180/6–43/SC -12 | 2,6 | 250 | 430 | 209 | 125 | 68 | 16 | 12 | 180 | 1 | 1-1/4 |
| PF 2520B | 1741520 | 25 | 10 | 3838963239635 | WILO PARA 25-180/6–43/SC -12 | 2,6 | 250 | 430 | 190 | 125 | 68 | 16 | 12 | 180 | 1 | 1-1/4 |
