buffer tank
JPSRR 500 · without insulation
JPSRR Type 500 · High-performance solar buffer storage tank with 2 heat exchangers.
Item No. 121500
- nominal capacity
- 431
- Ø without insulation
- 650 mm
- Height
- 1,630 mm
- Weight
- 134 kg
Tank 121500 Delivery time: approx. 4–6 weeks
As of Oct 28, 2026
EAN 4250659500666
Dimensions and weights
- Ø without insulation
- 650 mm
- Height
- 1,630 mm
- tilt height
- 1,665 mm
- Installation dimensions
- 690 mm
- Weight
- 134 kg
Connections
Letters as shown in the illustration
| Letter | connection | Height | Size | Thread | Angle |
|---|---|---|---|---|---|
| E | Connection 1 Front socket | 220 mm | 1½" | Female thread | 17.63° |
| E | Connection 1 Rear socket | 220 mm | 1½" | Female thread | 117.63° |
| E | sensor sleeve | 220 mm | ½" | Female thread | 91.19° |
| K | Heating Return Return register (1.8 m², bottom) | 220 mm | 1¼" | Female thread | 44.07° |
| F | Connection 2 Front socket | 620 mm | 1½" | Female thread | 17.63° |
| F | Connection 2 Rear socket | 620 mm | 1½" | Female thread | 117.63° |
| F | sensor sleeve | 620 mm | ½" | Female thread | 91.19° |
| J | Heating flow line Register flow (1.8 m², bottom) | 660 mm | 1¼" | Female thread | 44.07° |
| M | Return of Solar Return register (1.8 m², top) | 760 mm | 1¼" | Female thread | 44.07° |
| G | Connection 3 Front socket | 1,010 mm | 1½" | Female thread | 17.63° |
| G | Connection 3 Rear socket | 1,010 mm | 1½" | Female thread | 117.63° |
| G | sensor sleeve | 1,010 mm | ½" | Female thread | 91.19° |
| L | Solar Flow Register flow (1.8 m², top) | 1,200 mm | 1¼" | Female thread | 44.07° |
| H | Connection 4 Front socket | 1,390 mm | 1½" | Female thread | 17.63° |
| H | Connection 4 Rear socket | 1,390 mm | 1½" | Female thread | 117.63° |
| H | sensor sleeve | 1,390 mm | ½" | Female thread | 91.19° |
| I | Top connection Top connection (L=50) | 1,630 mm | 1½" | Female thread | 0° |
Technical Specifications
Volume
- nominal capacity
- 431
heat exchanger
- Heat exchanger Bottom Surface
- 1.8 m²
- Heat exchanger Top Surface
- 1.2 m²
- Operating pressure of storage tanks
- 4.5 bar
- Test pressure of the storage tank
- 7.8 bar
- Max. Pressure heat exchanger
- 6 bar
Miscellaneous
- Installation dimensions
- 690 mm
specification text
ENERGY BUFFER TANK
Buffer tank for all hot water central heating systems. Suitable for: solid fuel and oil-fired boilers, heat pumps, solar systems, and gas or electric instantaneous water heaters. Manufactured from high-quality S235JR steel in accordance with EN 10025 and EC Directive 97/23/EC; exterior with anti-corrosion coating, interior left unfinished. Includes a sensor terminal strip for variable positioning of the sensors.
- Nominal capacity
- 431 L
- Operating pressure of storage tanks
- 4.5 bar
- Test pressure of the storage tank
- 7.8 bar
- Minimum pressure in the storage tank
- +0 bar
- Max. operating temperature
- 95°C
- Min. temperature
- 20 °C
- Heat exchanger Bottom Surface
- 1.8 m²
- Heat exchanger Top Surface
- 1.2 m²
- Max. Pressure heat exchanger
- 6 bar
Features
- 4 x 1½" sockets (system connection on the left)
- 4 x 1½" sockets (system connection on the right)
- System connections, including layer baffle plate
- 1 x 1½" socket (air vent)
- 4 x ½" sockets (standard sockets)
- 4 x 1" Socket (heat exchanger)
- 1 x Center partition plate
The system connection ports are spaced 100° apart. Dimensions without insulation: 650 x 1630 (Ø x H) mm
- Manufacturer
- Juratherm GmbH
- Match Code
- JPSRR 500
- Weight
- ~134 kg
- Tilt height
- 1665 mm
- EAN13
- 4250659500666
Product video
JPSRR 500 in motion
