Heating & Cooling Expansion Vessels

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  1. Reflex NG Closed Heating & Cooling System Pressure Vessel - 80Ltr

    RE-8001200

    Reflex NG Closed Heating & Cooling System Pressure Vessel - 80Ltr

    Reflex NG 80L Vessel for heating and chilled water applications. This vessel has threaded connections and has a Max. working pressure of 6 bar with a Max. operating temperature of 70c. It comes pre-pressurised at 1.5 bar.

    £126.00 £105.00
    Free Delivery
    In stock
  2. Reflex NG Closed Heating & Cooling System Pressure Vessel - 100Ltr

    REFLEX-8001411

    Reflex NG Closed Heating & Cooling System Pressure Vessel - 100Ltr

    Reflex N 100L Vessel for heating and chilled water applications. This vessel has threaded connections and has a Max. working pressure of 6 bar with a Max. operating temperature of 70c. It comes pre-pressurised at 1.5 bar.

    £166.80 £139.00
    Free Delivery
    In stock
  3. Reflex NG Closed Heating & Cooling System Pressure Vessel - 140Ltr

    RE-8001600

    Reflex NG Closed Heating & Cooling System Pressure Vessel - 140Ltr

    Reflex NG 140L Vessel for heating and chilled water applications. This vessel has threaded connections and has a Max. working pressure of 6 bar with a Max. operating temperature of 70c. It comes pre-pressurised at 1.5 bar.

    £216.00 £180.00
    Free Delivery
    In stock
  4. Reflex N Closed Heating & Cooling System Pressure Vessel - 200Ltr

    REFLEX-8213300

    Reflex N Closed Heating & Cooling System Pressure Vessel - 200Ltr

    Reflex NG 200L Vessel for heating and chilled water applications. This vessel has threaded connections and has a Max. working pressure of 6 bar with a Max. operating temperature of 70c. It comes pre-pressurised at 1.5 bar.

    £318.00 £265.00
    Free Delivery
    In stock
  5. Reflex N Closed Heating & Cooling System Pressure Vessel - 250Ltr

    RE-8214300

    Reflex N Closed Heating & Cooling System Pressure Vessel - 250Ltr

    Reflex NG 250L Vessel for heating and chilled water applications. This vessel has threaded connections and has a Max. working pressure of 6 bar with a Max. operating temperature of 70c. It comes pre-pressurised at 1.5 bar.

    £342.00 £285.00
    Free Delivery
    In stock
  6. Reflex N Closed Heating & Cooling System Pressure Vessel - 300Ltr

    RE-8215300

    Reflex N Closed Heating & Cooling System Pressure Vessel - 300Ltr

    Reflex NG 300L Vessel for heating and chilled water applications. This vessel has threaded connections and has a Max. working pressure of 6 bar with a Max. operating temperature of 70c. It comes pre-pressurised at 1.5 bar.

    £408.00 £340.00
    Free Delivery
    In stock
  7. Reflex N Closed Heating & Cooling System Pressure Vessel - 400Ltr

    RE-8218000

    Reflex N Closed Heating & Cooling System Pressure Vessel - 400Ltr

    Reflex NG 400L Vessel for heating and chilled water applications. This vessel has threaded connections and has a Max. working pressure of 6 bar with a Max. operating temperature of 70c. It comes pre-pressurised at 1.5 bar.

    £558.00 £465.00
    Free Delivery
    In stock
  8. Reflex N Closed Heating & Cooling System Pressure Vessel - 500Ltr

    RE-8218300

    Reflex N Closed Heating & Cooling System Pressure Vessel - 500Ltr

    Reflex NG 500L Vessel for heating and chilled water applications. This vessel has threaded connections and has a Max. working pressure of 6 bar with a Max. operating temperature of 70c. It comes pre-pressurised at 1.5 bar.

    £684.00 £570.00
    Free Delivery
    In stock
  9. Reflex N Closed Heating & Cooling System Pressure Vessel - 600Ltr

    RE-8218400

    Reflex N Closed Heating & Cooling System Pressure Vessel - 600Ltr

    Reflex NG 600L Vessel for heating and chilled water applications. This vessel has threaded connections and has a Max. working pressure of 6 bar with a Max. operating temperature of 70c. It comes pre-pressurised at 1.5 bar.

    £760.80 £634.00
    Free Delivery
    In stock
  10. Zilmet Ultra-Pro Vertical Expansion Vessel - 10 Bar - 12Ltr

    ZI-1100001215

    Zilmet Ultra-Pro Vertical Expansion Vessel - 10 Bar - 12Ltr

    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.

    £49.54 RRP £44.06 £36.72
    In stock
  11. Zilmet Ultra-Pro Vertical Expansion Vessel - 10 Bar - 19Ltr

    ZI-1100001919

    Zilmet Ultra-Pro Vertical Expansion Vessel - 10 Bar - 19Ltr

    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.

    £52.28 RRP £46.66 £38.88
    In stock
  12. 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.

    £109.98 RRP £98.50 £82.08
    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.

    £62.64 RRP £75.17 £62.64
    Free Delivery
    In stock
  14. Zilmet Ultra-Pro Vertical Expansion Vessel - 16 Bar - 24Ltr

    ZI-11000024G7

    Zilmet Ultra-Pro Vertical Expansion Vessel - 16 Bar - 24Ltr

    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.

    £178.20 RRP £213.84 £178.20
    Free Delivery
    In stock
  15. Zilmet Ultra-Pro Horizontal Expansion Vessel - 16 Bar - 24Ltr

    ZI-11000024G8

    Zilmet Ultra-Pro Horizontal Expansion Vessel - 16 Bar - 24Ltr

    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.

    £240.84 RRP £289.01 £240.84
    Free Delivery
    In stock
  16. Zilmet Ultra-Pro Horizontal Expansion Vessel - 10 Bar - 50Ltr

    ZI-1100005007

    Zilmet Ultra-Pro Horizontal Expansion Vessel - 10 Bar - 50Ltr

    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.

    £187.26 RRP £168.48 £140.40
    Free Delivery
    In stock
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At Pump Sales Direct we stock a range of expansion vessels for both heating and cooling systems.

 

We supply products from some of the country’s leading suppliers that pride themselves on manufacturing high-quality and durable systems, including Gitral and Reflex.

 

A heating expansion vessel is fitted within a closed heating system when an increase in water volume needs to be facilitated as the temperature rises. When the temperature of the water increases, additional volume is created to allow the water into the vessel. The water then flows back through the heating system when the temperature drops again.

 

This helps to reduce the system’s energy consumption by maintaining the same pressure.

 

The products we have in stock have been designed for a range of different systems and can accommodate varying requirements. We offer a choice of maximum working pressures and operating temperatures, and have vessels with capacities ranging from 25 litres to 600 litres.

 

The heating expansion vessel is supplied pre-pressurised at 1.5 bar, which makes it easy to install and use. The connection is ready to go and the vessel simply needs to be fitted into the plumbing system.

 

The size of the heating expansion vessel you require will depend on the capacity of the calorifier that is installed. In practice you should allow for an expansion tank that can accommodate 10% of the capacity.

 

If you are unsure about the exact type of expansion vessel you require, a member of our friendly and experienced team will be happy to provide assistance.