WENTA · WBF
Buffer tank
Buffer heat intelligently between source and system.
A buffer tank decouples the heat source from the emission system. That prevents short-cycling of the heat pump, extends service life and raises efficiency. Available from 100 to 5,000 litres, with flanged connections from 800 litres up. For combining several heat sources the compact wall-mounted WBF-A is available.
- up to capacity
- 5000L
- max. temperature
- 95°C
- working pressure
- 10bar
- Prevents heat pump short-cycling
- Flanged connections DN 80 – DN 200 from 800 litres
- Seamless, high-grade insulation
- Twelve capacities from 100 to 5,000 litres
- Wall-mounted version (WBF-A): 40 to 140 litres, 3 bar
For professionals and private customers
Specifications
| Property | Value |
|---|---|
| Capacity | 100 – 5000 L |
| Working pressure | 10 bar |
| Max. temperature | 95 °C |
| Capacity wall-mounted version | 40 – 140 L |
| Working pressure wall-mounted | 3 bar |
| Material | S235JR steel |
| Insulation | high-grade, seamless |
| Heat source | boiler · heat pump · solar |
This product appears on page 8 of the 2026 product catalogue.
Standards & approvals
- TS EN 13445-3
WBF: capacities and main dimensions
| Capacity (L) | Ø D (mm) | Height H (mm) | Primary/secondary | Empty weight (kg) |
|---|---|---|---|---|
| 100 | 490 | 1030 | 1½" | 33 |
| 200 | 590 | 1245 | 1½" | 50 |
| 300 | 590 | 1810 | 2" | 66 |
| 500 | 750 | 1620 | 2½" | 86 |
| 800 | 950 | 1620 | DN 80 | 145 |
| 1000 | 950 | 1980 | DN 100 | 175 |
| 1500 | 1120 | 2250 | DN 125 | 275 |
| 2000 | 1260 | 2250 | DN 125 | 340 |
| 2500 | 1460 | 2200 | DN 150 | 480 |
| 3000 | 1460 | 2600 | DN 150 | 560 |
| 4000 | 1760 | 2300 | DN 200 | 720 |
| 5000 | 1760 | 2700 | DN 200 | 920 |
WBF-A: wall-mounted buffer tank, capacities and main dimensions
| Capacity (L) | Ø D (mm) | Height H (mm) | Connection |
|---|---|---|---|
| 40 | 490 | 480 | 1" |
| 60 | 490 | 680 | 1" |
| 80 | 490 | 865 | 1" |
| 100 | 490 | 1015 | 1" |
| 120 | 490 | 1115 | 1" |
| 140 | 950 | 1265 | 1" |
