Altecnic Hy-Pro EPDM Stainless Steel Flange 19 Litre Expansion Vessel

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Altecnic Hy-Pro EPDM Stainless Steel Flange 19 Litre Expansion Vessel Powered By Docstoc
					                                              Altecnic Hy-Pro EPDM Stainless
                                              Steel Flange Expansion - 19 Litre


                                                                            Dimensions (mm):
                                                                            Capacity:                  19 Litres
                                                                            ØD:                        270

                                                                            H:                         387
                                                                            C:                         G3/4"

Altecnic offer a complete range of expansion vessels to meet the requirements of most heating 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’.

The vessel is fabricated by welding the various sections together which results in a very reliable structure suitable
for internal pressures up to 10bar depending upon model. The tank is designed with no corners to trap sediment.
The internal membrane is replaceable and is suitable for use with potable and aggressive waters. Epoxy coated in
white. Suitable for temperatures up to 99°C, resistant to ethylene or propyleneglycol mixtures. Altecnic expansion
vessels are all tested according to the Pressure Systems Directive.

How It Works
The diaphragm guarantees that air and water do not mix, eliminating any possible ‘water logging’ through loss of
air to the system. In a closed hot water circuit, the 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 membrane sack to collapse until the pump is started when the sack starts to inflate. As the
temperature in the system increases, with the associated increase in pressure and volume, the expanded water
enters the sack creating additional volume and lowering the pressure. When the temperature decreases, the
pre-charge pressure forces the water from the sack and back into the main water circuit.

Component                  Material
Shell:                     Carbon steel
Flange:                    Stainless steel
Connections:               Carbon steel
Diaphragm:                 EPDM
Coating:                   Powder epoxy

Technical Specification
Max. working pressure:                       10 bar
Max. operating temperature:                  -10°C to 99°C
Factory air pre-charge:                      1.5 to 3 bar

  Advanced Water Company, Unit D5 The Enterprise Centre, Off Enterprise Way, Vale Park, Evesham
Worcestershire, WR11 1GS TEL: 0845 076 6144 FAX: 01386 760077 EMAIL:

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Description: Range of Altecnic Hy-Pro EPDM Stainless Steel Flange Potable Water Expansion Vessels