12 Litre - Zilmet Cal-pro 12 Heating Expansion Vessel

12 Litre - Zilmet Cal-pro 12 Heating Expansion Vessel
12 Litre - Zilmet CAL-PRO 12 Heating
Expansion Vessel - Red
Dimensions:
D:
294mm
H:
281mm
C:
3/4" G
Advantages
The CAL-PRO expansion vessels absorb the water volume variations in closed heating systems
maintaining constant pressure and help to reduce energy consumption. The broad range
available meets the requirements of various heating system sizes
Technical features
Crimped or welded carbon steel shells, synthetic SBR rubber according to DIN 4807-3 norms are
suitable to every capacity for maximising tank drawdown. Vessels are painted externally with
long-lasting epoxy-polyester powder coating and are 100% factory-tested.
Working
In a closed heating system water cannot be compressed and any increase in water volume due to
the increase of its temperature is absorbed by the expansion vessel. When water is cold, the
precharge pressure of the tank presses the diaphragm against the tank. As temperature increases,
the expanded water volume pushes against the membrane and water enters the tank, providing
additional space to the system. With the temperature decrease, the air cushion forces water
back into the system. This permits the system to maintain the pressure, helping to reduce energy
consumption of the heating system.
Technical Specifications:
Max. working pressure:
Max. operating temperature:
Factory pre-charge:
Shell:
Connections:
Membrane:
Capacity:
Colour:
4 bar
90°C
2 bar
Carbon Steel
3/4" MBSP
Carbon Steel
SBR Synthetic
Rubber
12 Litres
Red
www.advancedwater.co.uk
Advanced Water Company, Unit D5 The Enterprise Centre, Off Enterprise Way, Vale Park, Evesham
Worcestershire, WR11 1GS TEL: 01386 760066 FAX: 01386 760077 EMAIL: sales@advancedwater.co.uk
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