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The Zilmet OEM-PRO 12-Litre Expansion Vessel is a high-quality, space-saving safety component designed to manage thermal expansion within sealed central heating systems and domestic combi or system boilers. When water is heated, it expands; in a sealed loop, this volume change creates rapid pressure spikes. The OEM-PRO vessel houses a pressurised air cushion that absorbs this fluctuating fluid volume, stabilising internal pressure and preventing the boiler’s 3-bar safety relief valve from lifting or dripping.
- High quality and compact heating expansion vessel suitable for boilers
- Flat and round, crimped or welded, carbon steel shell
- Synthetic SBR rubber membrane according to DIN4807-3
- Brand
- Zilmet
- Guarantee
- 5 Years
- Category
- Expansion Vessel - Heating
- Product Code
- 775-146-0123
- Size
- 12 Litres
- Main Material
- Carbon Steel
- Main Colour
- Grey
- Box Quantity
- 1
- Weight
- 4700 g
- Width
- 324 mm
- Height
- 166 mm
- Diameter
- 324 mm
- Max Pressure
- 3 Bar
- GTIN
- 0708747451214
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Collect in-store
Collection available between 7:30 am and 5 pm Monday to Friday, and between 8:00 am and midday on Saturdays.
Please bring your order confirmation with you on collection.
Please wait for us to contact you before making your way to collect your items.Estimated collection Tuesday 30th.
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Our delivery policy
We will deliver goods as soon as possible. An estimated delivery date will be provided on the checkout pages. For in-stock items, this may be as soon as the next day; for out-of-stock items, it may take a few days longer.
Local deliveries are available for customers based within a 10-mile radius of our store in Hayes, West London (UB3 1DS), with free delivery for orders over £100 ex VAT.
Courier deliveries are available to the rest of the UK, excluding Northern Ireland, the Channel Islands, the Isle of Man, the Isle of Wight, Llandudno (Wales) and the Scottish Highlands. Free standard delivery for orders over £250 ex VAT (note that for some products, an additional delivery surcharge may apply).
Please see our 'Terms of Sale' for more information regarding our delivery policy.Order before 2.00pm for estimated delivery between Monday 29th and Thursday 2nd.
There is a delivery surcharge of £3.00 inc. VAT£2.50 ex. VAT for this product, in addition to the standard delivery rate.
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Our returns policy
Please see our 'Terms of Sale' for more information regarding our Returns Policy.