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buffer tank

JPSLRR 1000 · without insulation

JPSLRR Type 1000 V2 · Buffer tank with stratification charging system and 2 heat exchangers.

Item No. 1581000

  • Tanks without insulation
nominal capacity
839
Ø without insulation
790 mm
Height
2,043 mm
Weight
218 kg
Tank 1581000 Delivery time: approx. 4–6 weeks

As of Oct 28, 2026

Request for 1581000

EAN 4250659506248

Average of JPSLRR Type 1000 V2

Dimensions and weights

H 2,043 Ø 790 19 12 17 18 15 10 9 6 3 16 13 20 7 4 1
Ø without insulation
790 mm
Height
2,043 mm
tilt height
2,058 mm
Weight
218 kg

Connections

Letters as shown in the illustration

Letter connection Height Size Thread Angle
1 Connection 1 Front socket 310 mm 1½" Female thread 14.5°
Connection 1 Rear socket 310 mm 1½" Female thread 114.5°
3 sensor sleeve 310 mm ½" Female thread 92.72°
18 Heating Return Return register (3.0 m²) 310 mm 1¼" Female thread 36.28°
4 Connection 2 Front socket 745 mm 1½" Female thread 14.5°
Connection 2 Rear socket 745 mm 1½" Female thread 114.5°
6 sensor sleeve 745 mm ½" Female thread 92.72°
7 Connection 3 Front socket 1,027 mm 1½" Female thread 14.5°
Connection 3 Rear socket 1,027 mm 1½" Female thread 114.5°
9 sensor sleeve 1,027 mm ½" Female thread 92.72°
17 Heating flow line Register Flow (3.0 m²) 1,030 mm 1¼" Female thread 36.28°
20 Return of Solar Return register (2.4 m²) 1,170 mm 1¼" Female thread 36.28°
10 Connection 4 Front socket 1,250 mm 1½" Female thread 14.5°
Connection 4 Rear socket 1,250 mm 1½" Female thread 114.5°
12 sensor sleeve 1,250 mm ½" Female thread 92.72°
13 Connection 5 Front socket 1,710 mm 1½" Female thread 14.5°
Connection 5 Rear socket 1,710 mm 1½" Female thread 114.5°
15 sensor sleeve 1,710 mm ½" Female thread 92.72°
19 Solar Flow Register Flow (2.4 m²) 1,710 mm 1¼" Female thread 36.28°
16 Top connection Top connection (L=50) 2,043 mm 1½" Female thread 0°

Technical Specifications

Volume

nominal capacity
839

heat exchanger

Heat exchanger Bottom Surface
3.1 m²
Heat exchanger Top Surface
2.4 m²
WT Content at the bottom
21.7
Heat exchanger Top Capacity
15.7

Print

Heat exchanger Pressure drop at the bottom
274 mbar
Heat exchanger Pressure Loss (Top)
132 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
839 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
2.4 m²
Heat exchanger Top Capacity
15.7 L
Heat exchanger Pressure Loss (Top)
132 mbar
Heat exchanger Bottom Surface
3.1 m²
WT Content at the bottom
21.7 L
Heat exchanger Pressure drop at the bottom
274 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 2040 (Ø x H) mm

Manufacturer
Juratherm GmbH
Match Code
JPSLRR 1000
Weight
~241 kg
Tilt height
2085 mm
EAN13
4250659506248

Product video

JPSLRR 1000 in motion