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    Expansion Vessels & Ancillaries

    Expansion vessels, also known as expansion tanks, can be found in most domestic pressurised heating systems. If you have a combi boiler, you will have an expansion vessel. This vessel contains air and water from the central heating system, and its purpose is to maintain the right level of pressure in the system.

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    Picture of 600L CORE Heating Expansion Vessel

    600L CORE Heating Expansion Vessel

    CHV600L
    CORE Heating Expansion Vessel 600 Litre. 6 bar Maximum Working Pressure. Working Temperature -10 - 70°C. (with legs)
    Status: In Stock
    Picture of Altecnic Reflex 100ltr Vessel c/w Legs Htg System

    Altecnic Reflex 100ltr Vessel c/w Legs Htg System

    ALTHV100C
    Altecnic Reflex 100 Litre Expansion Heating Vessel comes with Legs - 6 Bar Max Working Pressure
    Status: In Stock
    Picture of 2" Advantay Pressure Reducing Valve Female Union

    2" Advantay Pressure Reducing Valve Female Union

    AD0901600200
    2" Advantay Pressure Reducing Valve BSP, F/F union fittings. Adjustable between 0.5 to 6 bar. Pre set 3 bar maximum inlet pressure of 25 bar. Maximum water temperature of 80°c. Suitable for fluid, water and compressed air.
    Status: In Stock
    Picture of 800L CORE Heating Expansion Vessel

    800L CORE Heating Expansion Vessel

    CHV800L
    CORE Heating Expansion Vessel 800 Litre. 6 bar Maximum Working Pressure. Working Temperature -10 - 70°C. (with legs)
    Status: In Stock
    Picture of 1000L CORE Heating Expansion Vessel

    1000L CORE Heating Expansion Vessel

    CHV1000L
    CORE Heating Expansion Vessel 1000 Litre. 6 bar Maximum Working Pressure. Working Temperature -10 - 70°C. (with legs)
    Status: Out of Stock
    Picture of Altecnic Reflex 140ltr Vessel c/w Legs Htg System

    Altecnic Reflex 140ltr Vessel c/w Legs Htg System

    ALTHV140C
    Altecnic Reflex 140 Litre Expansion Heating Vessel comes with Legs - 6 Bar Max Working Pressure
    Status: In Stock
    Picture of 500L CORE Potable Expansion Vessel

    500L CORE Potable Expansion Vessel

    CPV500L
    CORE Potable Expansion Vessel 500 Litre. 10 bar Maximum Working Pressure. Working Temperature -10 - 100 °C. WRAS approved.
    Status: In Stock
    Picture of Altecnic Reflex 100ltr Vert Vessel WRAS c/w Legs

    Altecnic Reflex 100ltr Vert Vessel WRAS c/w Legs

    ALTPV100W
    Altecnic Reflex 100 Litre Vertical Potable Expansion Heating Vessel comes with Legs - 10 Bar Max Working Pressure - Replaceable Membrane - WRAS Approved
    Status: Out of Stock
    Picture of Altecnic Reflex 200ltr Vessel c/w Legs Htg System

    Altecnic Reflex 200ltr Vessel c/w Legs Htg System

    ALTHV200W
    Altecnic Reflex 200 Litre Expansion Heating Vessel comes with Legs - 6 Bar Max Working Pressure
    Status: Out of Stock
    Picture of Altecnic Reflex 140ltr Vert Vessel WRAS c/w Legs

    Altecnic Reflex 140ltr Vert Vessel WRAS c/w Legs

    ALTPV140W
    Altecnic Reflex 140 Litre Vertical Potable Expansion Heating Vessel comes with Legs - 10 Bar Max Working Pressure - Fixed Membrane - WRAS Approved
    Status: In Stock
    Picture of Altecnic Reflex 200ltr Vert Vessel WRAS c/w Legs

    Altecnic Reflex 200ltr Vert Vessel WRAS c/w Legs

    ALTPV200W
    Altecnic Reflex 200 Litre Vertical Potable Expansion Heating Vessel comes with Legs - 10 Bar Max Working Pressure - Replaceable Membrane - WRAS Approved
    Status: In Stock
    Picture of Altecnic Reflex 300ltr Vessel c/w Legs Htg System

    Altecnic Reflex 300ltr Vessel c/w Legs Htg System

    ALTHV300W
    Altecnic Reflex 300 Litre Expansion Heating Vessel comes with Legs - 6 Bar Max Working Pressure
    Status: Out of Stock
    Picture of Advantay AFH-200 CE horz 10bar Expansion Vessel

    Advantay AFH-200 CE horz 10bar Expansion Vessel

    AD0093500200
    Advantay 200 Litre Horizontal Expansion Vessel complete with universal pump mounting bracket. 1.1/4” Male Connection. Max Operating Pressure 10 bar (pre-set 1.5 bar), Max Operating Temp 99°C, Height 665mm - Blue
    Status: Out of Stock
    Picture of 750L CORE Potable Expansion Vessel

    750L CORE Potable Expansion Vessel

    CPV750L
    CORE Potable Expansion Vessel 750 Litre. 10 bar Maximum Working Pressure. Working Temperature -10 - 100 °C. WRAS approved.
    Status: In Stock
    Picture of Altecnic Reflex 300ltr Vert Vessel WRAS c/w Legs

    Altecnic Reflex 300ltr Vert Vessel WRAS c/w Legs

    ALTPV300W
    Altecnic Reflex 300 Litre Vertical Potable Expansion Heating Vessel comes with Legs - 10 Bar Max Working Pressure - Replaceable Membrane - WRAS Approved
    Status: Out of Stock
    Picture of Advantay ERCE 300 Heating Vessel (Floor Standing)

    Advantay ERCE 300 Heating Vessel (Floor Standing)

    AD0093000300
    Advantay ER series 300 Litre Free Standing Heating Expansion Vessel. 1” Male Connection. Max Operating Pressure 10 bar (pre-set 1.5 bar), Max Operating Temp 99°C, Height 1240mm – Red
    Status: In Stock
    Picture of Advantay ERCE 250 Heating Vessel (Floor Standing)

    Advantay ERCE 250 Heating Vessel (Floor Standing)

    AD0093000250
    Advantay ER series 250 Litre Free Standing Heating Expansion Vessel. 1” Male Connection. Max Operating Pressure 10 bar (pre-set 1.5 bar), Max Operating Temp 99°C, Height 1160mm – Red
    Status: Out of Stock
    Picture of 1000L CORE Potable Expansion Vessel

    1000L CORE Potable Expansion Vessel

    CPV1000L
    CORE Potable Expansion Vessel 1000 Litre. 10 bar Maximum Working Pressure. Working Temperature -10 - 100 °C. WRAS approved.
    Status: In Stock
    Picture of Altecnic Reflex 500ltr Vessel c/w Legs Htg System

    Altecnic Reflex 500ltr Vessel c/w Legs Htg System

    ALTHV500W
    Altecnic Reflex 500 Litre Vertical Potable Expansion Heating Vessel comes with Legs - 6 Bar Max Working Pressure - Replaceable Membrane - WRAS Approved
    Status: Out of Stock
    Picture of Altecnic Reflex 600ltr Vessel c/w Legs Htg System

    Altecnic Reflex 600ltr Vessel c/w Legs Htg System

    ALTHV600W
    Altecnic Reflex 600 Litre Vertical Potable Expansion Heating Vessel comes with Legs - 6 Bar Max Working Pressure - Replaceable Membrane - WRAS Approved
    Status: Out of Stock