Zilmet Ultra Pro Expansion Vessel with interchangeable membrane for Potable Water Horizontal 24ltr

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Zilmet Ultra Pro Expansion Vessel with interchangeable membrane for Potable Water Horizontal 24ltr

SKU: 6180

Estimated Delivery:

1 to 2 Working Days ✝FREE
Orders placed before 1pm are processed the same day, delivery times are between 8am & 6pm Monday to Friday, all deliveries require a signature, for delivery instructions please use the notes section during checkout.
Please see below for Items you will also require for this product.

Availability: In stock

Regular Price: £107.94

£91.99 (inc VAT)

✝ Subject to stock availability. UK Mainland only. Delivery fees and times to Northern Ireland, Scottish Highlands & Isles, Isle of Man, Isle of Wight, Isles of Scilly, and the Channel Isles may vary. Deliveries are made during working days only.

Product Description


An Expansion Vessel is used to balance pressure in a sealed central heating system, as water cannot be compressed. Sometimes used by customers as an accumulator, an expansion vessel contains a bladder or diaphragm that is charged with air to a suitable pressure to help when demand for water is higher. This WRAS approved Horizontal expansion vessel is suitable for Potable water, comes with an interchangeable (replaceable) membrane for maintenance purposes and is fitted with a 3/4" size connection.
5 year guarantee
  • Potable Water Expansion Vessel for potable water, pumps and booster sets
  • Max. working pressure: 10 bar
  • Max. operating temperature: 70°C
  • Factory Pre-charge: 1.5 bar
  • Vessel Capacity: 24 Litre Horizontal
  • Connection: 1" MBSP
  • Flange: Galvanised Steel/Stainless Steel
  • Membrane: Replaceable membrane - either Butyl or EPDM
  • Shell: Carbon Steel
  • Colour: Blue
  • Diameter: 270mm
  • Height: 290mm
  • Length: 485mm



expansion vessel for potable water, pumps and booster setscapacity: from 24 - 3000 litres

AdvantagesULTRA-PRO pressure tanks are the best choice for irrigation pumps, centrifugal pumps, submersible pumps andfor booster sets. The capacity of a bladder tank is larger than the capacity of common storage tanks: the sameperformance can be obtained with a smaller volume, allowing minimum pump starts therefore saving energy.The range of different sizes, availability of vertical and horizontal models, together the choice between galvanisedor stainless steel fl anges ensure that the ULTRA-PRO pressure tanks meet the requirements of the end user. Pressuretanks from Zilmet undergo 100% factory testing procedures and are certifi ed according to PED 97/23/EC.The bladder, which is suitable for alimentary purposes, is fi xed at both ends avoiding any possible contact againstthe inner tank surface.ULTRA-PRO pressure tanks offer unlimited service as the bladder is easily replaceable.

Technical featuresMIG welded carbon steel body without internal rough spots or sharp edges. Replaceable bladder suitable for usewith potable water. Painted externally with long lasting epoxy powder. Mild steel or stainless steel fl anges for usewith aggressive water.

WorkingWhen the pump starts, water enters the membrane tank as system pressure passes the pressure precharge usingthe whole capacity of the tank. Only usable water is stored. When the pressure in the chamber reaches themaximum system pressure, the pump stops working. The tank is fi lled to its maximum capacity. When water will beneeded again, pressure in the airside will push water into the system. Since Zilmet ULTRA-PRO tank does not waterlog and delivers all possible water, minimum pump starts are assured with saving on energy consumption andincreasing the pump life

Cold water accumulators buffer tank working on mains pressure precharge to increase your water flow

For example if you run your water tap at 4 am you will find that there is a greater amount of pressure coming from your mains outlet, this pressure will be stored in your Buffer tank and will allow you to use this over the following day. Also as its a tank you are able to increase the flow of water into your property. This giving you a greater volume of water and better pressure than you would have in the middle of the day. This can give the property the feeling of a massive pump being installed in to the home when its only the use of the stored pressure in the buffer tank. Now this pressure will only be as good as the pressure your property has at any one time and the volume will only be as good as the size of tank you choose and the outlet and size of pipework from the tank. This is a relatively easy system to install and give massive benefits to the home and does allow bigger shower heads and quicker filling of baths or if used in commercial use huge gains in the volume of water available. This tanks can also be linked together to give huge amounts of water volume. This really is a maxing fix for a home with a low water pressure due to large demand on volume

Click Below For Technical Sheet

Hudson Reed A304 Technical Information

Technical Information

Additional Information

SKU 6180
Manufacturer ID ZI-332552
Guarantee Length 1 Year
Diameter 270mm
Length 485mm
Max Working Pressure (Bar) 10 bar
Horizontal or Vertical Horizontal
Connection Type 3/4"
Capacity 24


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