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buffer tank

JPSLRR 825 · without insulation

JPSLRR Type 825 V2 · Buffer tank with stratification charging system and 2 heat exchangers.

Item No. 158825

  • Tanks without insulation
nominal capacity
680
Ø without insulation
790 mm
Height
1,693 mm
Weight
181 kg
Tank 158825 Delivery time: approx. 4–6 weeks

As of Oct 28, 2026

Request for 158825

EAN 4250659506262

Average of JPSLRR Type 825 V2

Dimensions and weights

H 1,693 Ø 790
Ø without insulation
790 mm
Height
1,693 mm
tilt height
1,711 mm
Weight
181 kg

Connections

No connections have been specified for this tank yet.

Technical Specifications

Volume

nominal capacity
680

heat exchanger

Heat exchanger Bottom Surface
2.8 m²
Heat exchanger Top Surface
1.8 m²
WT Content at the bottom
19.6
Heat exchanger Top Capacity
11.8

Print

Heat exchanger Pressure drop at the bottom
248 mbar
Heat exchanger Pressure Loss (Top)
74 mbar
Operating pressure of storage tanks
4.5 bar
Test pressure of the storage tank
7.8 bar
Max. Pressure heat exchanger
6 bar

specification text

ENERGY BUFFER TANK with 2 heat exchangers and a stratification charging system, resulting in significantly improved stratification behavior

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
680 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 Top Surface
1.8 m²
Heat exchanger Top Capacity
11.8 L
Heat exchanger Pressure Loss (Top)
74 mbar
Heat exchanger Bottom Surface
2.8 m²
WT Content at the bottom
19.6 L
Heat exchanger Pressure drop at the bottom
248 mbar
Max. Pressure heat exchanger
6 bar

Features

  • 1 x 1½" socket (air vent)
  • 5 x 1 ½ " socket (system connection on the left)
  • 5 x 1 ½ " socket (system connection on the right)
  • 2 x deflector plates
  • 2 x mitered pipe DN 40
  • 2 x return layer ducts
  • 5 x ½" sockets (standard sockets)
  • 1 x perforated sheet, 50%
  • 4 x 1" Socket (heat exchanger)

The system connection ports are spaced 100° apart. Dimensions without insulation: 790 x 1690 (Ø x H) mm

Manufacturer
Juratherm GmbH
Match Code
JPSLRR 825
Weight
~206 kg
Tilt height
1740 mm
EAN13
4250659506262

Product video

JPSLRR 825 in motion