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buffer tank

JPSLRR 825 · Neodul® silver

Efficiency Class B

JPSLRR Type 825 V2, assembled, silver · Includes 130 mm Neodul® insulation

Item No. 840368

  • Assembled tank
heat loss
83 W
Standby loss
1.99 kWh/24 h
ErP Volume
718
Weight
222 kg
Tank 158825 Delivery time: approx. 4–6 weeks
Insulation 9720825 In stock
Total Delivery time: approx. 4–6 weeks

As of Oct 28, 2026

Request for 840368

EAN 4250659510450

Average of JPSLRR Type 825 V2, assembled, silver

Dimensions and weights

H 1,790 Ø 1,050
Ø with insulation
1,050 mm
Ø without insulation
790 mm
Height including insulation
1,790 mm
Height without insulation
1,693 mm
tilt height
1,740 mm
Weight
222 kg
Insulation thickness
130 mm

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

insulation

Insulation thickness of the jacket (assembled)
130 mm
Insulation color
silver
Fire rating
B2 according to DIN 4102

Energy (ErP)

ErP Class
B
ErP - Heat loss (W)
83 W
ErP – Heat Loss (kWh)
1.99 kWh
ErP - Contents
718

specification text

ENERGY BUFFER TANK with 2 heat exchangers, including insulation with 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.

Insulation Details

Material
Neodul®
Insulation color
Silver
Fire rating
B2 according to DIN 4102
Temperature Resistance
110 °C
ErP Class
B
ErP - Heat loss (W)
83 W

Insulation thickness of jacket (assembled): 130 mm, 110 mm gray EPS (0.032 W/mK), 20 mm polyester fiber fleece (0.040 W/mK)

Cover thickness 150 mm

  • 100 mm EPS, gray, 0.032 W/mK
  • 50 mm polyester fiber fleece 0.040 W/mK

Floor insulation made of high-density fleece

  • 50 mm polyester fiber fleece 0.033 W/mK

Dimensions with insulation

  • 1050 x 1790 (Ø x H) mm
Manufacturer
Juratherm GmbH
Match Code
JPSLRR 825 V2, assembled
Silver

Assembly consisting of

  • JPSLRR Type 825 V2
  • Neodul Insulation Type 825
Weight
~222 kg
Tilt height
1740 mm
EAN13
4250659510450

Composition

Product video

JPSLRR 825 in motion