Zilmet Expansion Vessels

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  1. ZILMET Cal-Pro 18L 4bar (with bracket)

    ZI-1300001800B

    Zilmet Cal-Pro Vertical Expansion Vessel - 4 Bar - 18Ltr

    CAL-PRO are membrane expansion tanks for centralized closed circuits suited to absorb the increased water volume when the temperature in the heating system increases.

    £39.44 RRP £36.00 £30.00
    In stock
  2. Zilmet Inox-Pro Stainless Steel Expansion Vessel - 10bar - 0.5Ltr

    ZI-11B000BB00

    Zilmet Inox-Pro Stainless Steel Expansion Vessel - 10bar - 0.5Ltr

    INOX-PRO: The expansion tanks in this line are entirely made of stainless steel. They are especially used for systems that produce sanitary hot water produced by a boiler or from plate heat exchangers.

    £79.71 RRP £44.40 £37.00
    In stock
  3. Zilmet Inox-Pro Stainless Steel Expansion Vessel - 10 Bar - 1Ltr

    ZI-11B0000100

    Zilmet Inox-Pro Stainless Steel Expansion Vessel - 10 Bar - 1Ltr

    INOX-PRO: The expansion tanks in this line are entirely made of stainless steel. They are especially used for systems that produce sanitary hot water produced by a boiler or from plate heat exchangers.

    £50.00 RRP £60.00 £50.00
    Free Delivery
    In stock
  4. Zilmet Hydro-Pro Vertical Expansion Vessel - 10 Bar - 250Ltr

    ZI-11A0025000

    Zilmet Hydro-Pro Vertical Expansion Vessel - 10 Bar - 250Ltr

    HYDRO-PRO is a line of compact expansion tanks for sanitary hot water with a fixed potable water butyl membrane and internal epoxy coating. These expansion tanks are made of carbon steel and MIG welding that eliminates any sharp cutting edges inside the tank.

    £460.25 RRP £414.00 £345.00
    Free Delivery
    In stock
  5. Zilmet Hydro-Pro Vertical Expansion Vessel - 10 Bar - 150Ltr

    ZI-11A0015000

    Zilmet Hydro-Pro Vertical Expansion Vessel - 10 Bar - 150Ltr

    HYDRO-PRO is a line of compact expansion tanks for sanitary hot water with a fixed potable water butyl membrane and internal epoxy coating. These expansion tanks are made of carbon steel and MIG welding that eliminates any sharp cutting edges inside the tank.

    £401.98 RRP £361.20 £301.00
    Free Delivery
    In stock
  6. Zilmet Hydro-Pro Vertical Expansion Vessel - 10 Bar - 105Ltr

    ZI-11A0010500

    Zilmet Hydro-Pro Vertical Expansion Vessel - 10 Bar - 105Ltr

    HYDRO-PRO is a line of compact expansion tanks for sanitary hot water with a fixed potable water butyl membrane and internal epoxy coating. These expansion tanks are made of carbon steel and MIG welding that eliminates any sharp cutting edges inside the tank.

    £268.16 RRP £241.20 £201.00
    Free Delivery
    In stock
  7. Zilmet Hydro-Pro Vertical Expansion Vessel - 10 Bar - 50Ltr

    ZI-11A0005000

    Zilmet Hydro-Pro Vertical Expansion Vessel - 10 Bar - 50Ltr

    HYDRO-PRO is a line of compact expansion tanks for sanitary hot water with a fixed potable water butyl membrane and internal epoxy coating. These expansion tanks are made of carbon steel and MIG welding that eliminates any sharp cutting edges inside the tank.

    £151.81 RRP £136.80 £114.00
    Free Delivery
    In stock
  8. ZILMET Ultra Inox-Pro 24L-V Stainless 10bar

    ZI-1110002403

    Zilmet Ultra Inox-Pro Vertical Stainless Steel Expansion Vessel - 10 Bar - 24Ltr

    ULTRA-INOX PRO: The expansion tanks in this line are entirely made of stainless steel. They are especially used for systems that produce sanitary hot water produced by a boiler or from plate heat exchangers.

    £287.32 RRP £258.00 £215.00
    Free Delivery
    In stock
  9. Zilmet Ultra-Pro Vertical Expansion Vessel - 10 Bar - 500Ltr

    ZI-1100050006

    Zilmet Ultra-Pro Vertical Expansion Vessel - 10 Bar - 500Ltr

    ULTRA-PRO pressure vessels with a food-grade replaceable membrane. This line is ideal for every modern installation and can be applied to any type of pump.

    £1,069.24 RRP £804.00 £670.00
    Free Delivery
    In stock
  10. Zilmet Ultra-Pro Expansion Vessel - 10 Bar - 200Ltr

    ZI-1100020006

    Zilmet Ultra-Pro Expansion Vessel - 10 Bar - 200Ltr

    ULTRA-PRO pressure vessels with a food-grade replaceable membrane. This line is ideal for every modern installation and can be applied to any type of pump.

    £518.24 RRP £466.80 £389.00
    Free Delivery
    In stock
  11. Zilmet Ultra-Pro Horizontal Expansion Vessel - 10 Bar - 60Ltr

    ZI-1100006007

    Zilmet Ultra-Pro Horizontal Expansion Vessel - 10 Bar - 60Ltr

    ULTRA-PRO pressure vessels with a food-grade replaceable membrane. This line is ideal for every modern installation and can be applied to any type of pump.

    £219.20 RRP £196.80 £164.00
    Free Delivery
    In stock
  12. Zilmet Ultra-Pro Vertical Expansion Vessel - 10 Bar - 60Ltr

    ZI-1100006006

    Zilmet Ultra-Pro Vertical Expansion Vessel - 10 Bar - 60Ltr

    ULTRA-PRO pressure vessels with a food-grade replaceable membrane. This line is ideal for every modern installation and can be applied to any type of pump.

    £203.00 RRP £182.40 £152.00
    Free Delivery
    In stock
  13. Zilmet Ultra-Pro Horizontal Expansion Vessel - 10 Bar - 24Ltr - 3/4 inch

    ZI-1100002442

    Zilmet Ultra-Pro Horizontal Expansion Vessel - 10 Bar - 24Ltr - 3/4 inch

    ULTRA-PRO pressure vessels with a food-grade replaceable membrane. This line is ideal for every modern installation and can be applied to any type of pump.

    £58.00 RRP £69.60 £58.00
    Free Delivery
    In stock
  14. Zilmet Ultra-Pro Horizontal Expansion Vessel - 10 Bar - 24Ltr - 1 inch

    ZI-1100002406

    Zilmet Ultra-Pro Horizontal Expansion Vessel - 10 Bar - 24Ltr - 1 inch

    ULTRA-PRO pressure vessels with a food-grade replaceable membrane. This line is ideal for every modern installation and can be applied to any type of pump.

    £101.83 RRP £91.20 £76.00
    Free Delivery
    In stock
  15. Zilmet Membrane - 50Ltr

    260100021

    Zilmet Membrane - 50Ltr

    For use with 50Ltr Vessels.

    £87.60 £73.00
    Free Delivery
    In stock
  16. ZILMET Cal-Pro 300L 6bar

    ZI-1300030000

    Zilmet Cal-Pro Vertical Expansion Vessel - 6 Bar - 300Ltr

    CAL-PRO are membrane expansion tanks for centralized closed circuits suited to absorb the increased water volume when the temperature in the heating system increases.

    £550.39 RRP £495.60 £413.00
    Free Delivery
    In stock
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Zilmet is Europe's largest manufacturer of expansion vessels and plate heat exchangers. Their products are known for their high quality and excellent performance.

As a company committed to research and development in order to stay at the forefront of the industry, Zilmet expansion vessels are some of the most advanced you can find. The range that we stock at Pump Sales Direct has been selected so that you can find an expansion tank that will fit with your heating system, regardless of how large, small, simple or complicated it is.

A pressure vessel is designed to act as a cushion against changes of pressure in a system. The tank contains two compartments, one containing water, the other air stored under pressure. It acts like a surge tank; when there is a rise in pressure, water can spill into the pressure vessel, reducing the risk of burst pipes.

The Zilmet Ultra Pro model range offers a huge amount of versatility. This line of products can be used in every modern installation and can be applied to any type of pump. It is for this reason that we stock such an extensive array of Ultra Pro models, as well as Zilmet’s Inox-Pro, Hydro-Pro and Cal-Pro units.

If you are unsure which type will suit your needs then you can consult the datasheet available on each product page. For more information on how Zilmet can help protect your heating system, feel free to get in touch and we can find a pressure vessel to suit your needs.