Nexus PWT 100 litre Duplex 2205 stainless steel buffer tank with hygienic Duplex 2205 inner tank, anti-cycling buffer function, thermal storage function and electric-boiler-ready design with heating element.
The RVS Buffertank PWT-100 is a stainless steel buffer tank for heat pump systems, central heating installations and professional HVAC applications. It increases system volume, helps reduce cycling and supports more stable hydraulic operation.
The tank is manufactured from Duplex 2205 stainless steel and designed for long-term use in technical installations. The combination of stainless steel, PU insulation and practical connection options makes this model a durable buffer solution for installers.
With Energy Efficiency Class A, the high-quality PU insulation helps reduce heat loss, keeps stored heat at temperature for longer and supports lower energy consumption in heat pump and heating systems. This makes the Nexus stainless steel buffer range an efficient choice for reliable thermal storage, buffer volume and long-term energy savings.
By adding buffer volume, the heating system can operate more smoothly. This supports stable flow, less frequent start-stop operation of the heat source and reliable long-term system performance.
Technical data - PWT-100
| General | |
| Product type | Duplex 2205 stainless steel buffer tank / electric boiler-ready vessel |
| Rated volume | 100 L |
| Application | Heat pump and heating systems / anti-cycling buffer, thermal storage and optional electric boiler use |
| Installation type | Vertical floor-standing |
| Connection layout | 4 side connections |
| Height [mm] | 995 |
| Tilt dimension [mm] | 1100 |
| Outer diameter [mm] | 470 |
| Inner diameter [mm] | 370 |
| Insulation | CFC-free rigid PU foam |
| Insulation thickness [mm] | 50 |
| Outer casing | Frosted metal, light grey |
| Weight [kg] | 22 |
| Warranty | 5 years |
| Tank | |
| Tank material | Stainless steel Duplex 2205 |
| Max. tank pressure [bar] | 6 |
| Max. tank temperature [deg C] | 95 |
| Connections | ||||
| H | Height | 995 mm | ||
| ØD | Outer diameter | 470 mm | ||
| Ød | Inner diameter | 370 mm | ||
| H | DN 14 | G 3/4" | P&T safety valve | 995 mm |
| B | DN 3 | G 1 1/4" | Connection (inlet / outlet) | 800 mm |
| A | DN 4 | G 1 1/4" | Connection (inlet / outlet) | 200 mm |
| C | DN 5 | G 1/2" | Sensor pocket 1 (12.7 mm) | 700 mm |
| E | DN 8 | G 1 1/4" | Connection (inlet / outlet) | 200 mm |
| F | DN 9 | G 1 1/4" | Connection (inlet / outlet) | 800 mm |
| L | DN 6 | G 1 1/2" | Electric heating element | 360 mm |
| D | DN 7 | G 1/2" | Sensor pocket 2 (12.7 mm) | 300 mm |
| G | DN 2 | G 1/2" | Drain tap | 33 mm |
| Safety requirements |
| The storage vessel must be protected against overpressure at all times. We recommend installing the following safety accessories: * Safety valve and inlet combination * Nexus sanitary expansion vessel model DS-DSV * Nexus expansion vessel model Nexus ERCE The required expansion vessel capacity must be calculated according to the total system volume and operating conditions. |