600 Litre - Hydro Pro Fixed Membrane
Potable Water Expansion Vessel
Dimensions
Capacity:
Diameter(ØD):
Height(H):
Connection(C):
600 Ltr
750mm
1620mm
1 1/4"
C
H
ØD
Introduction:
Altecnic offer a complete range of expansion vessels to meet the requirements of most heating systems
and for use with potable water. The expansion vessels 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:
- Deep drawn steel shell for increased strength and durability.
- The vessel is fabricated by MIG welding, eliminating interior rough spots and sharp edges, which helps prevent
damage to the diaphragm.
- Pre-pressurised air chamber with butyl rubber diaphragm.
- The internal surfaces of the vessel are epoxy coated, to help prevent bacterial growth and corrosion.
- Epoxy coated in blue.
- Suitable for temperatures up to 99°C, resistant to ethylene or propyleneglycol mixtures and
has low gas permeability.
- Altecnic expansion vessels are all tested according to the Pressure Systems Directive.
How It Works:
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.
Materials
Shell :
Connections:
Diaphragm:
Coating:
Carbon steel
Carbon steel
Butyl rubber
Powder epoxy
Technical Specification
Max. working pressure:
Max. operating temperature:
Factory air pre- charge:
10 bar
-10°C to 99°C
2 Bar
Advanced Water Company, Unit D5 The Enterprise Centre, Off Enterprise Way, Vale Park, Evesham
Worcestershire, WR11 1GS TEL: 01386 760066 FAX: 01386 760077 EMAIL: [email protected]