HV C heating expansion vessels 8 to 140 litres
■Altecnic offer a complete range of expansion vessels to meet the requirements of most heating or cooling systems.
■Expansion vessels for heating systems are manufactured to meet the requirements of PED 97/23/EC Directive and BS EN 13831:2007 ‘Closed expansion vessels with built in diaphragm for installation in water’
●Design
■The two halves of the vessel and the diaphragm are retained by a crimped collar to give a pressure tight seal on all sizes.
■Non-replaceable diaphragm.
■Epoxy coated in grey.
■Suitable for flow temperatures up to 120 ̊C, resistant to ethylene or propylene glycol mixtures and has low gas permeability.
■Altecnic expansion vessels are all tested according to the Pressure Equipment Directive.
●How It Works
■In a closed heating system water cannot be compressed so any increase in volume, created by an increase in temperature, has to be accommodated by an expansion vessel.
■When water is cold, the pre-charge pressure forces the diaphragm against the tank towards the inlet.
■As the temperature increases, the expanded water volume pushes against the diaphragm creating additional volume for the water to enter.
■When the temperature decreases, the pre-charge pressure forces the water from the tank and back into the main heating system.
■This maintains a constant pressure within the heating system helping to reduce energy consumption.
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HV C 、 HV8C 、 HV12C 、 HV18C 、 HV25C 、 HV35C 、 HV50C 、 HV80C 、 HV100C 、 HV140C |
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Datasheet |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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2020/9/3 |
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AL 109 03-09-20 |
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380 KB |
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