Stratification buffer tank SLS Stratification buffer tank SLS

Stratification buffer tank SLS

The clever buffer tank ...


Product description of heating buffer tanks SLS with perfect heat stratification


Heating buffer with patented thermal and hydraulic stratification system for the in- and outlet connections, provides an excellent stratification of the warmth in the buffer. Available standard sizes 500, 800, 1000, 1500, 2200, 2500, 3000 und 5000 litres, all types either with one or two or without solar heat exchanger.

Energy perfect stored in layers – energy optimized and quick responsive


There are various possible energy sources for this new kind of buffer concept. The buffer tank system with its pioneering role cleverly stores the energy in layers. Thus, the contributions of different heat generators can be combined and retrieved by each type of consumer load.

Our stratification element guarantees a constantly stable layering and therefore highest effcicieny of the tank. The in- and oulet of tank water is provided by an internal stratification element SLS® in the bottom and in the top of the tank. The water sorts itself there, untroubled by pump volume streams, according to the principles of gravity in order to layer itself almost flow-less into the corresponding temperature zones. The generated heat flows through the tank almost like through a pipe and is therefore immediately ready for discharge. Thus, we have a perfect and extremely fast system. It takes over the surplus of energy, prevents the usual heat loss that occurs with standard buffer tanks and releases the stored heat according to your needs.

It are these aspects that characterize a modern tank. The Solarbayer stratificaton system completes every heat generator in a perfect way and without any control units. The system operates maintenance free and with high operating reliability. Due to the easy integration it offers an enormous reduction of installation efforts and of installation costs. For the connection of solar system the tanks could be equipped with either one or two solar heat exchangers. Thus, a perfect operation of the solar systems with highest solar gains is enabled.



Take advantage of these benefits

  • connections arranged in 90° angle, possible installation in the corner
  • perfect for all heating systems, where heating buffering is required
  • either with one or two or without solar heat exchangers available
  • suitable for battery installations with more buffers in one row or according to the Tichelmann system
  • max. tank charging temperature: 95°C
  • high quality steel S235JR
  • solid construction with overlap welding
  • double welding at the straight bead
  • available either with foam insulation or with fleece insulation ISO-B1, 100 mm
  • installation of an electric heating element possible




Successful detail solutions


Buffer tank SLS Buffer tank SLS without solar heat exchanger
Buffer tank SLS-S Buffer tank SLS with one solar heat exchanger
Buffer tank SLS-2S Buffer tank SLS with two solar heat exchangers
Buffer tank SLS Plus Buffer tank SLS Plus without solar heat exchanger
Buffer tank SLS-S Plus Buffer tank SLS Plus with one solar heat exchanger
Buffer tank SLS-2S Plus Buffer tank SLS Plus with two solar heat exchangers




Technical data

Technical data buffer tank SLS, without heat exchanger, insulation ISO-B1

data buffer tank   500 800 1000 1500 2200 2500 3000 5000
nominal volume approx. L 489 801 934 1505 2219 2439 2924 4997
height with insulation [A] mm 1720 1910 2090 2220 2170 2320 2770 2870
height without insulation [B] mm 1645 1835 2015 2145 2095 2245 2695 2795
tilted dimension mm 1700 1950 2100 2250 2300 2450 2900 3100
diameter with insulation [C] mm 850 990 990 1200 1450 1450 1450 1800
diameter without insulation [D] mm 650 790 790 1000 1250 1250 1250 1600
weight kg 73 115 130 193 258 273 335 625
max. operating temperature °C 95 95 95 95 95 95 95 95
max. operating pressure bar 6 6 6 6 6 6 6 6
max. size of electric heating element (optional) kW 6 9 9 9 9 9 9 9
data insulation   500 800 1000 1500 2200 2500 3000 5000
insulation type   polyester fiber fleece, jacket PVC silver
insulation thickness mm 100
standby heat loss kWh/24h 2,26 2,59 2,80 3,61 4,39 4,64 5,39 7,04
energy efficiency class   C C C C -- -- -- --
product label   PDF PDF PDF PDF -- -- -- --
connection with dimensioning   500 800 1000 1500 2200 2500 3000 5000
[1] de-airing   oben (1½"IG)
[1a] sensor   oben (½"IG)
[2] flow line boiler/heating mm 1515
(1½"IG)
1690
(1½"IG)
1870
(1½"IG)
1935
(1½"IG)
1850
(2"IG)
2000
(2"IG)
2450
(2"IG)
2480
(2"IG)
[3] flow line boiler/heating mm 1515
(1½"IG)
1690
(1½"IG)
1870
(1½"IG)
1935
(1½"IG)
1850
(2"IG)
2000
(2"IG)
2450
(2"IG)
2480
(2"IG)
[4] sensor / thermometer mm 1420
(½"IG)
1590
(½"IG)
1770
(½"IG)
1835
(½"IG)
1845
(½"IG)
1875
(½"IG)
2325
(½"IG)
2350
(½"IG)
[5] sensor / thermometer mm 1120
(½"IG)
1290
(½"IG)
1370
(½"IG)
1435
(½"IG)
1445
(½"IG)
1505
(½"IG)
1825
(½"IG)
1850
(½"IG)
[6] electric heating element (optional) mm 1000
(1½"IG)
1060
(1½"IG)
1140
(1½"IG)
1125
(1½"IG)
1175
(1½"IG)
1205
(1½"IG)
1415
(1½"IG)
1500
(1½"IG)
[7] sensor / thermometer mm 670
(½"IG)
730
(½"IG)
770
(½"IG)
835
(½"IG)
845
(½"IG)
845
(½"IG)
945
(½"IG)
1070
(½"IG)
[8] sensor / thermometer mm 340
(½"IG)
370
(½"IG)
370
(½"IG)
435
(½"IG)
545
(½"IG)
545
(½"IG)
545
(½"IG)
570
(½"IG)
[9] return boiler/heating mm 140
(1½"IG)
170
(1½"IG)
170
(1½"IG)
235
(1½"IG)
320
(2"IG)
320
(2"IG)
320
(2"IG)
340
(2"IG)
[10] return boiler/heating mm 140
(1½"IG)
170
(1½"IG)
170
(1½"IG)
235
(1½"IG)
320
(2"IG)
320
(2"IG)
320
(2"IG)
340
(2"IG)

technical data buffer tank SLS PLUS, without heat exchanger, doppelte Wärmedämmung ISO-B1

data buffer tank   500 800 1000 1500 2200 2500 3000 5000
nominal volume approx. L 489 801 934 1505 2219 2439 2924 4997
height with insulation [A] mm 1840 2030 2210 2340 2290 2440 2890 2990
height without insulation [B] mm 1645 1835 2015 2145 2095 2245 2695 2795
tilted dimension mm 1700 1950 2100 2250 2300 2450 2900 3100
diameter with insulation [C] mm 1090 1230 1230 1440 1690 1690 1690 2040
diameter without insulation [D] mm 650 790 790 1000 1250 1250 1250 1600
weight kg 73 115 130 193 258 273 335 625
max. operating temperature °C 95 95 95 95 95 95 95 95
max. operating pressure bar 6 6 6 6 6 6 6 6
max. size of electric heating element (optional) kW 6 9 9 9 9 9 9 9
data insulation   500 800 1000 1500 2200 2500 3000 5000
insulation   double polyester fiber fleece, jacket PVC silver
insulation thickness mm 220
standby heat loss kWh/24h 1,33 1,52 1,68 2,17 2,58 2,72 3,16 4,02
energy efficiency class   A A A B -- -- -- --
product label   PDF PDF PDF PDF -- -- -- --
connection with dimensioning   500 800 1000 1500 2200 2500 3000 5000
[1] de-airing   oben (1½"IG)
[1a] sensor   oben (½"IG)
[2] flow line boiler/heating mm 1515
(1½"IG)
1690
(1½"IG)
1870
(1½"IG)
1935
(1½"IG)
1850
(2"IG)
2000
(2"IG)
2450
(2"IG)
2480
(2"IG)
[3] flow line boiler/heating mm 1515
(1½"IG)
1690
(1½"IG)
1870
(1½"IG)
1935
(1½"IG)
1850
(2"IG)
2000
(2"IG)
2450
(2"IG)
2480
(2"IG)
[4] sensor / thermometer mm 1420
(½"IG)
1590
(½"IG)
1770
(½"IG)
1835
(½"IG)
1845
(½"IG)
1875
(½"IG)
2325
(½"IG)
2350
(½"IG)
[5] sensor / thermometer mm 1120
(½"IG)
1290
(½"IG)
1370
(½"IG)
1435
(½"IG)
1445
(½"IG)
1505
(½"IG)
1825
(½"IG)
1850
(½"IG)
[6] electric heating element (optional) mm 1000
(1½"IG)
1060
(1½"IG)
1140
(1½"IG)
1125
(1½"IG)
1175
(1½"IG)
1205
(1½"IG)
1415
(1½"IG)
1500
(1½"IG)
[7] sensor / thermometer mm 670
(½"IG)
730
(½"IG)
770
(½"IG)
835
(½"IG)
845
(½"IG)
845
(½"IG)
945
(½"IG)
1070
(½"IG)
[8] sensor / thermometer mm 340
(½"IG)
370
(½"IG)
370
(½"IG)
435
(½"IG)
545
(½"IG)
545
(½"IG)
545
(½"IG)
570
(½"IG)
[9] return boiler/heating mm 140
(1½"IG)
170
(1½"IG)
170
(1½"IG)
235
(1½"IG)
320
(2"IG)
320
(2"IG)
320
(2"IG)
340
(2"IG)
[10] return boiler/heating mm 140
(1½"IG)
170
(1½"IG)
170
(1½"IG)
235
(1½"IG)
320
(2"IG)
320
(2"IG)
320
(2"IG)
340
(2"IG)

technical data buffer tank SLS-S, 1 heat exchanger, insulation ISO-B1

data buffer tank   500 800 1000 1500 2200 2500 3000 5000
nominal volume approx. L 485 796 927 1499 2211 2431 2914 4988
height with insulation [A] mm 1720 1910 2090 2220 2170 2320 2770 2870
height without insulation [B] mm 1645 1835 2015 2145 2095 2245 2695 2795
tilted dimension mm 1700 1950 2100 2250 2300 2450 2900 3100
diameter with insulation [C] mm 850 990 990 1200 1450 1450 1450 1800
diameter without insulation [D] mm 650 790 790 1000 1250 1250 1250 1600
weight kg 98 139 160 221 309 325 400 710
max. operating temperature °C 95 95 95 95 95 95 95 95
max. operating pressure bar 6 6 6 6 6 6 6 6
max. size of electric heating element (optional) kW 6 9 9 9 9 9 9 9
data insulation   500 800 1000 1500 2200 2500 3000 5000
insulation   polyester fiber fleece, jacket PVC silver
insulation thickness mm 100
standby heat loss kWh/24h 2,29 2,61 2,82 3,36 4,41 4,66 5,41 7,06
energy efficiency class   C C C C -- -- -- --
product label   PDF PDF PDF PDF -- -- -- --
data heat exchanger   500 800 1000 1500 2200 2500 3000 5000
surface 3,0 3,5 4,0 4,5 5,0 5,0 5,0 5,0
volume L 18,7 21,5 24,5 27,6 30,6 30,6 30,6 30,6
pressure drop (2 m³/h) mbar 123 155 203 223 239 239 239 239
transmission power (bei 20 K; 1m³/h; TSP=25°C) kW 40 46 53 59 66 66 66 66
max. operating pressure bar 10 10 10 10 10 10 10 10
max. operating temperature °C 110 110 110 110 110 110 110 110
recommended minimum collector surface 10 14 17 23 31 34 38 50
connection with dimensioning   500 800 1000 1500 2200 2500 3000 5000
[1] de-airing   oben (1½"IG)
[1a] sensor   oben (½"IG)
[2] flow line boiler/heating mm 1515
(1½"IG)
1690
(1½"IG)
1870
(1½"IG)
1935
(1½"IG)
1850
(2"IG)
2000
(2"IG)
2450
(2"IG)
2480
(2"IG)
[3] flow line boiler/heating mm 1515
(1½"IG)
1690
(1½"IG)
1870
(1½"IG)
1935
(1½"IG)
1850
(2"IG)
2000
(2"IG)
2450
(2"IG)
2480
(2"IG)
[4] sensor / thermometer mm 1420
(½"IG)
1590
(½"IG)
1770
(½"IG)
1835
(½"IG)
1845
(½"IG)
1875
(½"IG)
2325
(½"IG)
2350
(½"IG)
[5] sensor / thermometer mm 1120
(½"IG)
1290
(½"IG)
1370
(½"IG)
1435
(½"IG)
1445
(½"IG)
1505
(½"IG)
1825
(½"IG)
1850
(½"IG)
[6] electric heating element (optional) mm 1000
(1½"IG)
1060
(1½"IG)
1140
(1½"IG)
1125
(1½"IG)
1175
(1½"IG)
1205
(1½"IG)
1415
(1½"IG)
1500
(1½"IG)
[7] sensor / thermometer mm 670
(½"IG)
730
(½"IG)
770
(½"IG)
835
(½"IG)
845
(½"IG)
845
(½"IG)
945
(½"IG)
1070
(½"IG)
[8] sensor / thermometer mm 340
(½"IG)
370
(½"IG)
370
(½"IG)
435
(½"IG)
545
(½"IG)
545
(½"IG)
545
(½"IG)
570
(½"IG)
[9] return boiler/heating mm 140
(1½"IG)
170
(1½"IG)
170
(1½"IG)
235
(1½"IG)
320
(2"IG)
320
(2"IG)
320
(2"IG)
340
(2"IG)
[10] return boiler/heating mm 140
(1½"IG)
170
(1½"IG)
170
(1½"IG)
235
(1½"IG)
320
(2"IG)
320
(2"IG)
320
(2"IG)
340
(2"IG)
[11] flow line heat exchanger mm 800
(1"IG)
830
(1"IG)
990
(1"IG)
935
(1"IG)
1045
(1"IG)
1045
(1"IG)
1195
(1"IG)
1240
(1"IG)
[12] return line heat exchanger mm 240
(1"IG)
270
(1"IG)
270
(1"IG)
335
(1"IG)
445
(1"IG)
445
(1"IG)
445
(1"IG)
470
(1"IG)

technical data buffer tank SLS-S PLUS, 1 heat exchanger, double insulation ISO-B1

data buffer tank   500 800 1000 1500 2200 2500 3000 5000
nominal volume approx. L 485 796 927 1499 2211 2431 2914 4988
height with insulation [A] mm 1840 2030 2210 2340 2290 2440 2890 2990
height without insulation [B] mm 1645 1835 2015 2145 2095 2245 2695 2795
tilted dimension mm 1700 1950 2100 2250 2300 2450 2900 3100
diameter with insulation [C] mm 1090 1230 1230 1440 1690 1690 1690 2040
diameter without insulation [D] mm 650 790 790 1000 1250 1250 1250 1600
weight kg 98 139 160 221 309 325 400 710
max. operating temperature °C 95 95 95 95 95 95 95 95
max. operating pressure bar 6 6 6 6 6 6 6 6
max. size of electric heating element (optional) kW 6 9 9 9 9 9 9 9
data insulation   500 800 1000 1500 2200 2500 3000 5000
insulation   double polyester fiber fleece, jacket PVC silver
insulation thickness mm 220
standby heat loss kWh/24h 1,34 1,53 1,69 2,18 2,59 2,73 3,17 4,03
energy efficiency class   A A A B -- -- -- --
product label   PDF PDF PDF PDF -- -- -- --
data heat exchanger   500 800 1000 1500 2200 2500 3000 5000
surface 3,0 3,5 4,0 4,5 5,0 5,0 5,0 5,0
volume L 18,7 21,5 24,5 27,6 30,6 30,6 30,6 30,6
pressure drop (2 m³/h) mbar 123 155 203 223 239 239 239 239
transmission power (bei 20 K; 1m³/h; TSP=25°C) kW 40 46 53 59 66 66 66 66
max. operating pressure bar 10 10 10 10 10 10 10 10
max. operating temperature °C 110 110 110 110 110 110 110 110
recommended minimum collector surface 10 14 17 23 31 34 38 50
connection with dimensioning   500 800 1000 1500 2200 2500 3000 5000
[1] de-airing   oben (1½"IG)
[1a] sensor   oben (½"IG)
[2] flow line boiler/heating mm 1515
(1½"IG)
1690
(1½"IG)
1870
(1½"IG)
1935
(1½"IG)
1850
(2"IG)
2000
(2"IG)
2450
(2"IG)
2480
(2"IG)
[3] flow line boiler/heating mm 1515
(1½"IG)
1690
(1½"IG)
1870
(1½"IG)
1935
(1½"IG)
1850
(2"IG)
2000
(2"IG)
2450
(2"IG)
2480
(2"IG)
[4] sensor / thermometer mm 1420
(½"IG)
1590
(½"IG)
1770
(½"IG)
1835
(½"IG)
1845
(½"IG)
1875
(½"IG)
2325
(½"IG)
2350
(½"IG)
[5] sensor / thermometer mm 1120
(½"IG)
1290
(½"IG)
1370
(½"IG)
1435
(½"IG)
1445
(½"IG)
1505
(½"IG)
1825
(½"IG)
1850
(½"IG)
[6] electric heating element (optional) mm 1000
(1½"IG)
1060
(1½"IG)
1140
(1½"IG)
1125
(1½"IG)
1175
(1½"IG)
1205
(1½"IG)
1415
(1½"IG)
1500
(1½"IG)
[7] sensor / thermometer mm 670
(½"IG)
730
(½"IG)
770
(½"IG)
835
(½"IG)
845
(½"IG)
845
(½"IG)
945
(½"IG)
1070
(½"IG)
[8] sensor / thermometer mm 340
(½"IG)
370
(½"IG)
370
(½"IG)
435
(½"IG)
545
(½"IG)
545
(½"IG)
545
(½"IG)
570
(½"IG)
[9] return boiler/heating mm 140
(1½"IG)
170
(1½"IG)
170
(1½"IG)
235
(1½"IG)
320
(2"IG)
320
(2"IG)
320
(2"IG)
340
(2"IG)
[10] return boiler/heating mm 140
(1½"IG)
170
(1½"IG)
170
(1½"IG)
235
(1½"IG)
320
(2"IG)
320
(2"IG)
320
(2"IG)
340
(2"IG)
[11] flow line heat exchanger mm 800
(1"IG)
830
(1"IG)
990
(1"IG)
935
(1"IG)
1045
(1"IG)
1045
(1"IG)
1195
(1"IG)
1240
(1"IG)
[12] return line heat exchanger mm 240
(1"IG)
270
(1"IG)
270
(1"IG)
335
(1"IG)
445
(1"IG)
445
(1"IG)
445
(1"IG)
470
(1"IG)

technical data buffer tank SLS-2S, 2 heat exchangers, Wärmedämmung ISO-B1

data buffer tank   500 800 1000 1500 2200 2500 3000 5000
nominal volume approx. L 483 793 924 1494 2207 2427 2907 4980
height with insulation [A] mm 1720 1910 2090 2220 2170 2320 2770 2870
height without insulation [B] mm 1645 1835 2015 2145 2095 2245 2695 2795
tilted dimension mm 1700 1950 2100 2250 2300 2450 2900 3100
diameter with insulation [C] mm 850 990 990 1200 1450 1450 1450 1800
diameter without insulation [D] mm 650 790 790 1000 1250 1250 1250 1600
weight kg 136 200 217 294 396 413 494 803
max. operating temperature °C 95 95 95 95 95 95 95 95
max. operating pressure bar 6 6 6 6 6 6 6 6
max. size of electric heating element (optional) kW 6 9 9 9 9 9 9 9
data insulation   500 800 1000 1500 2200 2500 3000 5000
insulation   polyester fiber fleece, jacket PVC silver
insulation thickness mm 100
standby heat loss kWh/24h 2,4 2,71 2,92 3,73 4,51 4,76 5,51 7,16
energy efficiency class   C C C C -- -- -- --
product label   PDF PDF PDF PDF -- -- -- --
data heat exchanger   500 800 1000 1500 2200 2500 3000 5000
surface top 0,9 1,5 1,5 2,4 2,4 2,4 3,8 4,2
volume top L 5,5 8,9 8,9 14,7 14,7 14,7 23,3 25,7
pressure drop (2 m³/h) top mbar 42 75 75 118 118 118 187 225
transmission power (at 20 K; 1m³/h; TSP=25°C) top kW 12 20 20 32 32 32 50 55
surface bottom 3,0 3,5 4,0 4,5 5,0 5,0 5,0 5,0
volume bottom L 18,7 21,5 24,5 27,6 30,6 30,6 30,6 30,6
pressure drop (2 m³/h) bottom mbar 123 155 203 223 239 239 239 239
transmission power (at 20 K; 1m³/h; TSP=25°C) bottom kW 40 46 53 59 66 66 66 66
max. operating pressure bar 10 10 10 10 10 10 10 10
max. operating temperature °C 110 110 110 110 110 110 110 110
recommended minimum collector surface 10 14 17 23 31 34 38 50
connection with dimensioning   500 800 1000 1500 2200 2500 3000 5000
[1] de-airing   oben
(1½"IG)
[1a] sensor   oben
(½"IG)
[2] flow line boiler/heating mm 1515
(1½"IG)
1690
(1½"IG)
1870
(1½"IG)
1935
(1½"IG)
1850
(2"IG)
2000
(2"IG)
2450
(2"IG)
2480
(2"IG)
[3] flow line boiler/heating mm 1515
(1½"IG)
1690
(1½"IG)
1870
(1½"IG)
1935
(1½"IG)
1850
(2"IG)
2000
(2"IG)
2450
(2"IG)
2480
(2"IG)
[4] sensor / thermometer mm 1420
(½"IG)
1590
(½"IG)
1770
(½"IG)
1835
(½"IG)
1845
(½"IG)
1875
(½"IG)
2325
(½"IG)
2350
(½"IG)
[5] sensor / thermometer mm 1120
(½"IG)
1290
(½"IG)
1370
(½"IG)
1435
(½"IG)
1445
(½"IG)
1505
(½"IG)
1825
(½"IG)
1850
(½"IG)
[6] electric heating element (optional) mm 1000
(1½"IG)
1060
(1½"IG)
1140
(1½"IG)
1125
(1½"IG)
1175
(1½"IG)
1205
(1½"IG)
1415
(1½"IG)
1500
(1½"IG)
[7] sensor / thermometer mm 670
(½"IG)
730
(½"IG)
770
(½"IG)
835
(½"IG)
845
(½"IG)
845
(½"IG)
945
(½"IG)
1070
(½"IG)
[8] sensor / thermometer mm 340
(½"IG)
370
(½"IG)
370
(½"IG)
435
(½"IG)
545
(½"IG)
545
(½"IG)
545
(½"IG)
570
(½"IG)
[9] return boiler/heating mm 140
(1½"IG)
170
(1½"IG)
170
(1½"IG)
235
(1½"IG)
320
(2"IG)
320
(2"IG)
320
(2"IG)
340
(2"IG)
[10] return boiler/heating mm 140
(1½"IG)
170
(1½"IG)
170
(1½"IG)
235
(1½"IG)
320
(1½"IG)
320
(1½"IG)
320
(1½"IG)
340
(1½"IG)
[11] flow line heat exchanger bottom mm 800
(1"IG)
830
(1"IG)
990
(1"IG)
935
(1"IG)
1045
(1"IG)
1045
(1"IG)
1195
(1"IG)
1240
(1"IG)
[12] return line heat exchanger bottom mm 240
(1"IG)
270
(1"IG)
270
(1"IG)
335
(1"IG)
445
(1"IG)
445
(1"IG)
445
(1"IG)
470
(1"IG)
[13] flow line heat exchanger top mm 1320
(1"IG)
1440
(1"IG)
1550
(1"IG)
1735
(1"IG)
1735
(1"IG)
1655
(1"IG)
2095
(1"IG)
2220
(1"IG)
[14] return line heat exchanger top mm 1120
(1"IG)
1160
(1"IG)
1270
(1"IG)
1345
(1"IG)
1445
(1"IG)
1355
(1"IG)
1615
(1"IG)
1660
(1"IG)
[15] flow line boiler/heating mm 900
(1½"IG)
930
(1½"IG)
1100
(1½"IG)
1075
(1½"IG)
1130
(2"IG)
1130
(2"IG)
1330
(2"IG)
1410
(2"IG)
[16] flow line boiler/heating mm 900
(1½"IG)
930
(1½"IG)
1100
(1½"IG)
1075
(1½"IG)
1130
(2"IG)
1130
(2"IG)
1330
(2"IG)
1410
(2"IG)
[17] return line boiler/heating mm 670
(1½"IG)
730
(1½"IG)
890
(1½"IG)
835
(1½"IG)
925
(2"IG)
925
(2"IG)
1075
(2"IG)
1150
(2"IG)
[18] return line boiler/heating mm 670
(1½"IG)
730
(1½"IG)
890
(1½"IG)
835
(1½"IG)
925
(2"IG)
925
(2"IG)
1075
(2"IG)
1150
(2"IG)

technical data buffer tank SLS-2S PLUS, 2 heat exchangers, doppelte Wärmedämmung ISO-B1

data buffer tank   500 800 1000 1500 2200 2500 3000 5000
nominal volume approx. L 483 793 924 1494 2207 2427 2907 4980
height with insulation [A] mm 1840 2030 2210 2340 2290 2440 2890 2990
height without insulation [B] mm 1645 1835 2015 2145 2095 2245 2695 2795
tilted dimension mm 1700 1950 2100 2250 2300 2450 2900 3100
diameter with insulation [C] mm 1090 1230 1230 1440 1690 1690 1690 2040
diameter without insulation [D] mm 650 790 790 1000 1250 1250 1250 1600
weight kg 136 200 217 294 396 413 494 803
max. operating temperature °C 95 95 95 95 95 95 95 95
max. operating pressure bar 6 6 6 6 6 6 6 6
max. size of electric heating element (optional) kW 6 9 9 9 9 9 9 9
data insulation   500 800 1000 1500 2200 2500 3000 5000
insulation   double polyester fiber fleece, jacket PVC silver
insulation thickness mm 220
standby heat loss kWh/24h 1,36 1,55 1,74 2,23 2,64 2,78 3,22 4,08
energy efficiency class   A A A B -- -- -- --
product label   PDF PDF PDF PDF -- -- -- --
data heat exchanger   500 800 1000 1500 2200 2500 3000 5000
surface top 0,9 1,5 1,5 2,4 2,4 2,4 3,8 4,2
volume top L 5,5 8,9 8,9 14,7 14,7 14,7 23,3 25,7
pressure drop (2 m³/h) top mbar 42 75 75 118 118 118 187 225
transmission power (at 20 K; 1m³/h; TSP=25°C) top kW 12 20 20 32 32 32 50 55
surface bottom 3,0 3,5 4,0 4,5 5,0 5,0 5,0 5,0
volume bottom L 18,7 21,5 24,5 27,6 30,6 30,6 30,6 30,6
pressure drop (2 m³/h) bottom mbar 123 155 203 223 239 239 239 239
transmission power (at 20 K; 1m³/h; TSP=25°C) bottom kW 40 46 53 59 66 66 66 66
max. operating pressure bar 10 10 10 10 10 10 10 10
max. operating temperature °C 110 110 110 110 110 110 110 110
recommended minimum collector surface 10 14 17 23 31 34 38 50
connection with dimensioning   500 800 1000 1500 2200 2500 3000 5000
[1] de-airing   oben (1½"IG)
[1a] sensor   oben (½"IG)
[2] flow line boiler/heating mm 1515
(1½"IG)
1690
(1½"IG)
1870
(1½"IG)
1935
(1½"IG)
1850
(2"IG)
2000
(2"IG)
2450
(2"IG)
2480
(2"IG)
[3] flow line boiler/heating mm 1515
(1½"IG)
1690
(1½"IG)
1870
(1½"IG)
1935
(1½"IG)
1850
(2"IG)
2000
(2"IG)
2450
(2"IG)
2480
(2"IG)
[4] sensor / thermometer mm 1420
(½"IG)
1590
(½"IG)
1770
(½"IG)
1835
(½"IG)
1845
(½"IG)
1875
(½"IG)
2325
(½"IG)
2350
(½"IG)
[5] sensor / thermometer mm 1120
(½"IG)
1290
(½"IG)
1370
(½"IG)
1435
(½"IG)
1445
(½"IG)
1505
(½"IG)
1825
(½"IG)
1850
(½"IG)
[6] electric heating element (optional) mm 1000
(1½"IG)
1060
(1½"IG)
1140
(1½"IG)
1125
(1½"IG)
1175
(1½"IG)
1205
(1½"IG)
1415
(1½"IG)
1500
(1½"IG)
[7] sensor / thermometer mm 670
(½"IG)
730
(½"IG)
770
(½"IG)
835
(½"IG)
845
(½"IG)
845
(½"IG)
945
(½"IG)
1070
(½"IG)
[8] sensor / thermometer mm 340
(½"IG)
370
(½"IG)
370
(½"IG)
435
(½"IG)
545
(½"IG)
545
(½"IG)
545
(½"IG)
570
(½"IG)
[9] return boiler/heating mm 140
(1½"IG)
170
(1½"IG)
170
(1½"IG)
235
(1½"IG)
320
(2"IG)
320
(2"IG)
320
(2"IG)
340
(2"IG)
[10] return boiler/heating mm 140
(1½"IG)
170
(1½"IG)
170
(1½"IG)
235
(1½"IG)
320
(2"IG)
320
(2"IG)
320
(2"IG)
340
(2"IG)
[11] flow line heat exchanger bottom mm 800
(1"IG)
830
(1"IG)
990
(1"IG)
935
(1"IG)
1045
(1"IG)
1045
(1"IG)
1195
(1"IG)
1240
(1"IG)
[12] return line heat exchanger bottom mm 240
(1"IG)
270
(1"IG)
270
(1"IG)
335
(1"IG)
445
(1"IG)
445
(1"IG)
445
(1"IG)
470
(1"IG)
[13] flow line heat exchanger top mm 1320
(1"IG)
1440
(1"IG)
1550
(1"IG)
1735
(1"IG)
1735
(1"IG)
1655
(1"IG)
2095
(1"IG)
2220
(1"IG)
[14] return line heat exchanger top (1"IG) mm 1120
(1"IG)
1160
(1"IG)
1270
(1"IG)
1345
(1"IG)
1445
(1"IG)
1355
(1"IG)
1615
(1"IG)
1660
(1"IG)
[15] flow line boiler/heating (1½"IG) mm 900
(1½"IG)
930
(1½"IG)
1100
(1½"IG)
1075
(1½"IG)
1130
(2"IG)
1130
(2"IG)
1330
(2"IG)
1410
(2"IG)
[16] flow line boiler/heating (1½"IG) mm 900
(1½"IG)
930
(1½"IG)
1100
(1½"IG)
1075
(1½"IG)
1130
(2"IG)
1130
(2"IG)
1330
(2"IG)
1410
(2"IG)
[17] return line boiler/heating (1½"IG) mm 670
(1½"IG)
730
(1½"IG)
890
(1½"IG)
835
(1½"IG)
925
(2"IG)
925
(2"IG)
1075
(2"IG)
1150
(2"IG)
[18] return line boiler/heating (1½"IG) mm 670
(1½"IG)
730
(1½"IG)
890
(1½"IG)
835
(1½"IG)
925
(2"IG)
925
(2"IG)
1075
(2"IG)
1150
(2"IG)


Further product informations



Brochure heat storage tanks

Brochure
heat storage tanks

16-page brochure, DIN A4
PDF-file, 1.2 MB

pdf DOWNLOAD

Manual stratification buffer tank SLS

Manual
buffer tank SLS

20-page brochure, DIN A5
PDF-file, 0.52 MB

pdf DOWNLOAD




The principles of the patented SLS system in Solarbayer stratification buffer tanks SLS



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