Vessels

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  1. Stuart Turner Mainsboost MB 100CV-2-22 Mains Water Boosting System

    44513

    Stuart Turner Mainsboost MB 100CV-2-22 Mains Water Boosting System- 100Ltr - Pair

    The 2 vessel Mainsboost 100 litre vertical composite system with 22 mm connections are installed directly onto the incoming water supply and under mains pressure fills with water. When the chamber is full the unit reaches a state of pressure equilibrium. The Mainsboost system now has a volume of pressurised water ready for distribution throughout the property.

    £2,298.00 RRP £1,608.60 £1,340.50
    Free Delivery
    In stock
  2. ElbiAC25 GPM 24 Litre Accumulator Pressure Vessel - 24 Ltr - 10 bar

    022-554

    ElbiAC25 GPM 24 Litre Accumulator Pressure Vessel - 24 Ltr - 10 bar

    The accumulator vessel is a device that fitted into a pressurised water system will provide system water at a pre-set sustained pressure. Its most common application is to supply systems in which the main supply pressure is too low and a pump is fitted to boost the pressure to an acceptable level. As system demands take place the accumulator vessel will sustain system pressure by feeding additional water into the system at the required pressure. This process will limit the number of times the pump needs to start (pump hunting) in order that system pressure remains at the optimal level.

    £79.20 RRP £63.36 £52.80
    Free Delivery
    In stock
  3. Elbi AFH60 Litre Horizontal Accumulator Pressure Vessel - 60 Ltr - 10 bar

    022-556

    Elbi AFH60 Litre Horizontal Accumulator Pressure Vessel - 60 Ltr - 10 bar

    The accumulator vessel is a device that fitted into a pressurised water system will provide system water at a pre-set sustained pressure. Its most common application is to supply systems in which the main supply pressure is too low and a pump is fitted to boost the pressure to an acceptable level. As system demands take place the accumulator vessel will sustain system pressure by feeding additional water into the system at the required pressure. This process will limit the number of times the pump needs to start (pump hunting) in order that system pressure remains at the optimal level.

    £224.40 RRP £179.52 £149.60
    Free Delivery
    In stock
  4. Elbi AFV 200 Litre Vertical Accumulator Pressure Vessel - 200 Ltr - 10 bar

    022-590

    Elbi AFV 200 Litre Vertical Accumulator Pressure Vessel - 200 Ltr - 10 bar

    The accumulator vessel is a device that fitted into a pressurised water system will provide system water at a pre-set sustained pressure. Its most common application is to supply systems in which the main supply pressure is too low and a pump is fitted to boost the pressure to an acceptable level. As system demands take place the accumulator vessel will sustain system pressure by feeding additional water into the system at the required pressure. This process will limit the number of times the pump needs to start (pump hunting) in order that system pressure remains at the optimal level.

    £584.40 RRP £467.52 £389.60
    Free Delivery
    In stock
  5. Elbi AFV 300 Litre Vertical Accumulator Pressure Vessel - 300 Ltr - 16 bar

    022-620

    Elbi AFV 300 Litre Vertical Accumulator Pressure Vessel - 300 Ltr - 16 bar

    The accumulator vessel is a device that fitted into a pressurised water system will provide system water at a pre-set sustained pressure. Its most common application is to supply systems in which the main supply pressure is too low and a pump is fitted to boost the pressure to an acceptable level. As system demands take place the accumulator vessel will sustain system pressure by feeding additional water into the system at the required pressure. This process will limit the number of times the pump needs to start (pump hunting) in order that system pressure remains at the optimal level.

    £734.40 RRP £587.52 £489.60
    Free Delivery
    In stock
  6. Elbi AFV 500 Litre Vertical Accumulator Pressure Vessel- 500 Ltr - 16 bar

    022-622

    Elbi AFV 500 Litre Vertical Accumulator Pressure Vessel- 500 Ltr - 16 bar

    The accumulator vessel is a device that fitted into a pressurised water system will provide system water at a pre-set sustained pressure. Its most common application is to supply systems in which the main supply pressure is too low and a pump is fitted to boost the pressure to an acceptable level. As system demands take place the accumulator vessel will sustain system pressure by feeding additional water into the system at the required pressure. This process will limit the number of times the pump needs to start (pump hunting) in order that system pressure remains at the optimal level.

    £1,054.80 RRP £843.84 £703.20
    Free Delivery
    In stock
  7. Elbi AFV 24-16 24 Litre Vertical Accumulator Pressure Vessel - 25 Ltr - 16 bar

    022-631

    Elbi AFV 24-16 24 Litre Vertical Accumulator Pressure Vessel - 25 Ltr - 16 bar

    The accumulator vessel is a device that fitted into a pressurised water system will provide system water at a pre-set sustained pressure. Its most common application is to supply systems in which the main supply pressure is too low and a pump is fitted to boost the pressure to an acceptable level. As system demands take place the accumulator vessel will sustain system pressure by feeding additional water into the system at the required pressure. This process will limit the number of times the pump needs to start (pump hunting) in order that system pressure remains at the optimal level.

    £219.60 RRP £175.68 £146.40
    Free Delivery
    In stock
  8. Reflex DE Pressure Vessel - 60Ltr

    RE-7306400

    Reflex DE Pressure Vessel - 60Ltr

    Reflex DE 60L Vessel for heating and chilled water applications. This vessel has threaded connections and has a Max. working pressure of 10 bar with a Max. operating temperature of 70c. It comes pre-pressurised at 4.0 bar.

    £161.28 £134.40
    Free Delivery
    In stock
  9. Reflex DE Pressure Vessel - 80Ltr

    PV80W

    Reflex DE Pressure Vessel - 80Ltr

    Reflex DE 80L Vessel for heating and chilled water applications. This vessel has threaded connections and has a Max. working pressure of 10 bar with a Max. operating temperature of 70c. It comes pre-pressurised at 4.0 bar.

    £192.00 £160.00
    Free Delivery
    In stock
  10. Reflex DE Pressure Vessel - 100Ltr

    RE-7306600

    Reflex DE Pressure Vessel - 100Ltr

    Reflex DE 100L Vessel for heating and chilled water applications. This vessel has threaded connections and has a Max. working pressure of 10 bar with a Max. operating temperature of 70c. It comes pre-pressurised at 4.0 bar.

    £240.00 £200.00
    Free Delivery
    In stock
  11. Reflex DE Pressure Vessel - 200Ltr

    RE-7306700

    Reflex DE Pressure Vessel - 200Ltr

    Reflex DE 200L Vessel for heating and chilled water applications. This vessel has threaded connections and has a Max. working pressure of 10 bar with a Max. operating temperature of 70c. It comes pre-pressurised at 4.0 bar.

    £416.64 £347.20
    Free Delivery
    In stock
  12. Reflex DE Pressure Vessel - 300Ltr

    RE-7306800

    Reflex DE Pressure Vessel - 300Ltr

    Reflex DE 300L Vessel for heating and chilled water applications. This vessel has threaded connections and has a Max. working pressure of 10 bar with a Max. operating temperature of 70c. It comes pre-pressurised at 4.0 bar.

    £534.72 £445.60
    Free Delivery
    In stock
  13. Reflex DE Pressure Vessel - 500Ltr

    RE-7306900

    Reflex DE Pressure Vessel - 500Ltr

    Reflex DE 500L Vessel for heating and chilled water applications. This vessel has threaded connections and has a Max. working pressure of 10 bar with a Max. operating temperature of 70c. It comes pre-pressurised at 4.0 bar.

    £662.00 RRP £652.80 £544.00
    Free Delivery
    In stock
  14. 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.

    £192.00 £160.00
    Free Delivery
    In stock
  15. Reflex N Closed Heating & Cooling System Pressure Vessel - 100Ltr

    REFLEX-8001411

    Reflex N 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.

    £240.00 £200.00
    Free Delivery
    In stock
  16. 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
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The role of pressure vessels and expansion vessels in a heating or cooling system is to act as a method of compensating for fluid volumes. With water systems, fluids flowing through the circuit will change in volume as the temperature changes. The fluids expand with higher temperatures and contract with lower temperatures. The pressure of the entire system, however, has to be maintained within strict upper and lower limits for optimal operation. Both expansion and pressure vessels are usually made of drawn and welded steel. The exterior surface is treated with an anti-corrosion compound, while a diaphragm is installed within the tank interior and effectively divides the interior space into two. Water on one side of the diaphragm is connected via pipework to the heating and cooling system. When the heating system is operational, the water within the system expands. Too great an expansion of water volumes could damage the system’s pipework, so excess volumes are directed to the tank. Water cannot be compressed, and older heating systems could double pressures within the pipework, causing some catastrophic failures. With an expansion tank, the water will accumulate by compressing the air present on the other side of the diaphragm. If a tap in the system withdraws the water, or the temperature falls and the water contracts, the air will push the water out of the tank to resume circulating around the heating or cooling system. Such vessels are a vital part of relieving excess pressures in domestic, commercial and industrial heating and cooling systems.