Is this expansion vessel is pre-charged on delivery and what is the pre-charged pressure?

The pressure vessel is pre-charged at 3.5 bar.

Will this stop continual dripping from pressure relief valve on my 10ltr unvented water heater

Yes. It is necessary to allow for expansion. Hot water expands by up to 10% and the vessel allows for this. If you don’t fit then the pressure forces it’s way out via the tap (dripping) or out of the pressure relief valve.

what fitting do i need to connect this to my 15mm pipe work?

I suggest you take the vessel to a plumbers merchant and ask them to give you an adapter from the thread on the vessel to 15mm pipe.

Is the membrane made from epdm rubber?

It is synthetic rubber but I cant say if it is EPDM, Nitrile , or something else. I cannot think of any water component that would cause a problem with those.

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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Water Heater Expansion Vessel Kit A

Product ID: 49212828

Details

Brand
Ariston
Capacity
2 litres
Colour
White
Material
Brass Steel
Special feature
Check Valve

💧2L capacity

⚙️10 bar max pressure

🛡️Check valve safety

$199.37

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Description

💧 Elevate your water heater game with smart expansion control!

INTEGRATED CHECK VALVE - Prevents backflow, protecting your system with smart safety tech.
PREMIUM BUILD MATERIALS - Crafted from brass and stainless steel for long-lasting reliability.
COMPACT 2 LITRE CAPACITY - Perfectly sized to optimize your water heater’s performance without bulk.
SEAMLESS ARISTON COMPATIBILITY - Designed specifically for Ariston water heaters for effortless installation.
ROBUST 10 BAR PRESSURE HANDLING - Engineered to withstand high pressure, ensuring durability and safety.

The Ariston Water Heater Expansion Vessel Kit A features a 2-litre capacity vessel with a 10 bar maximum pressure rating, equipped with a built-in check valve for enhanced safety. Made from durable brass and stainless steel, this kit is designed for seamless integration with Ariston water heaters, ensuring reliable performance and protection backed by a 12-month warranty.

Specifications

ASIN	B00QVMB9KG
Best Sellers Rank	75,151 in DIY & Tools ( See Top 100 in DIY & Tools ) 112 in Water Heaters & Parts
Brand	Ariston
Capacity	2 litres
Colour	White
Customer Reviews	4.5 4.5 out of 5 stars (251)
Is Electric	No
Manufacturer	Ariston
Manufacturer Warranty Description	12 months.
Material	Brass, Stainless Steel
Maximum Pressure	10 Bars
Model Number	445190
Mount Type	internal
Number of Items	1
Part Number	Kit A
Special Features	Check Valve Safety Feature
Style	Water Heater Accessory
UPC	708747445190
Unit Count	1.0 count

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$199.37

Duties & taxes included

In stock

Sold byAmazon British Virgin IslandsDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to British Virgin Islands.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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