Solarbayer stratification buffer tank SLS-2500-S, patented SLS-System

Stratification buffer tank SLS-S 2500
with patented thermohydraulic
stratification control system (SLS). The
SLS system in the flow and return line
enable ideal heat stratification during
loading and unloading with instant heat
availability. For higher efficiency with
different heat sources and consumers.
Integrated large heat exchanger for
improved efficiency of the solar thermal
systems. Numerous connections for
sensors, thermometers and an immersion
heater. Fire protection fleece
insulation ISO-B1 made from recycled
fibres (Oeko-Tex® Standard 100) incl.
floor insulation for low heat loss.
Robust PVC jacket with stainless steel
quick-lock system for easy installation.

Technical data:
nominal volume: 2431 litres
material: steel S235JR
corrosion protection outside: priming
height with insulation: 2320 mm
height without insulation: 2245 mm
tilted height: 2450 mm
diameter without insulation: 1250 mm
diameter with insulation: 1450 mm
weight: 325 kg
max. operating pressure: 6 bar
max. operating temperature: 95 °C

Heat exchangers (heating/solar):
surface: 5.0 m²
capacity: 30.6 litres
max. operating pressure: 10 bar
max. operating temperature: 110 °C

Connections:
heating: 4x DN50 (2")
immersion heater*: 1x DN40 (1 1/2")
*max. installation length: 1300 mm
air vent: 1x DN40 (1 1/2")
sensor (top): 1x DN15 (1/2")
sensor: 4x DN15 (1/2")
heat exchanger: 2x DN25 (1")
connections aligned in 90 degrees

Thermal insulation:
material: fibre mat
lambda λ: 0.0368 W/(mK)
thickness uncompressed: 100 mm +/- 10%
protective sheath: PVC foil silver
fire protection class according to
DIN 4102 for the complete insulation: B1
Standby energy consumption according to
DIN EN 12897:2020-05: 4.66 kWh/24h
standing heat loss: 194 W