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Zip Expansion Vessel & Check Valve Kit 2 Litre Capacity

£138.00 £115.00
In stock
Delivery Time:
Next Working Day
2 Years
Quick Code:
Order Line:
01977 663331


  • Expansion vessel capacity: 2ltrs
  • Dimensions: H250mm x D132mm
  • Diameter: 150mm

Zip Expansion Vessel & Check Valve Kit 2 Litre Capacity.

Allows for expansion of the heated water and prevents expanded water entering other cold water draw off points!

The Zip expansion vessel and check valve kit (AQ2) may be needed if other cold water draw off points are close by to the installation. When the water is being heated in the cylinder this expanded water is absorbed in the cold water supply pipe-work or when fitted the expansion vessel AQ2.

The check valve supplied with the expansion vessel is a one way valve and also used to reduce incoming water pressure above desired levels, factory pre-set at <4bar. Therefore when fitted the cylinder is protected from any surging water pressures.

The check valve will help prolong the life of the cylinder and also serves to prevent the expanded water from the cylinder expanding to other cold water draw off points within the system!

  • For use with the Zip Aquapoint water heaters
  • Includes check valve
  • 15mm / ½” BSP connections
  • Pre Charge Bar Rating: 3.5 bar
  • Check valve ensures a one way flow
  • Zip Genuine Spare Parts
  • Finish: Metallic
  • Connection size: 3/4MBSP + 15mm
  • Connection type: MBSP
  • Material: Brass
  • Operating temperature: 100
  • Expansion vessel capacity: 2ltrs
  • Dimensions: H250mm x D132mm
  • Diameter: 150mm

Product Code  Compaitable Models  EAN Number
AQ2 Zip Aquapoint Water Heaters / Hot Water Heaters - All Models  5036764834020

Our Delivery Charges and times are explained:


Delivery Charges
All deliveries have a standard charge of £7.99 + VAT up to 20kg. Where stated, certain products are delivered FREE of charge (mainland UK only*). Check the description of the desired product and if it says free delivery then you will not be charged for delivery*

Extra Charges
Where the weight is over 20kg we reserve the right to charge more dependent on product type and delivery postcode, our customer service team will be in touch and inform you of any extra charges before we despatch.

Delivery Times
All products will have a delivery time stated in their description. Next Working Day - these products will be delivered Next Working Day if ordered before 12.00, or in certain circumstances up until 4:00 pm. Please call if you require a Next Working Day and we will try our best to get it to you. Certain products will state within 48hrs, within 3 Days or within 5 days. These products will be delivered within the time stated. If you require delivery on a certain day please put this in the comments and we will aim to deliver on that day.

Certain products such as radiators are delivered after 5 working days, when purchasing a radiator please put in the desired delivery date which is 5 working days after ordering. In some cases, stock permitting, we can get radiators out sooner. Please call or put in the customer comments if you need something urgently and we will try our best.

Saturday Deliveries
We can arrange for a Saturday delivery for certain products, please call 01977 663331 for more details.

Please note: Although we will do our utmost to deliver your product in the time stated we cannot be held responsible for any unforeseen delays. Please do not book a plumber, electrician, etc until you have received the goods as we will not be held responsible for their time. Please read our terms and conditions for further details.

additional charges may be applicable dependent on your location please double-check with our customer service team

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