---
product_id: 49212828
title: "Water Heater Expansion Vessel Kit A"
brand: "ariston"
price: "28398 som"
currency: KGS
in_stock: true
reviews_count: 8
category: "Ariston"
url: https://www.desertcart.kg/products/49212828-water-heater-expansion-vessel-kit
store_origin: KG
region: Kyrgyzstan
---

# 2L capacity 10 bar max pressure Compact & easy install Water Heater Expansion Vessel Kit A

**Brand:** ariston
**Price:** 28398 som
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your water heater game with compact power and peace of mind!

## Quick Answers

- **What is this?** Water Heater Expansion Vessel Kit A by ariston
- **How much does it cost?** 28398 som with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/49212828-water-heater-expansion-vessel-kit)

## Best For

- ariston enthusiasts

## Why This Product

- Trusted ariston brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Space-Saving Design:** Sleek, lightweight (1.5kg) build fits seamlessly into tight installations
- • **Hassle-Free Installation:** Compatible with standard fittings for quick setup using basic tools
- • **Robust 10 Bar Max Pressure:** Engineered to handle high-pressure demands safely and reliably
- • **Compact 2L Expansion Vessel:** Optimized capacity for efficient pressure management without bulk
- • **Integrated 15mm Check Valve:** Ensures backflow prevention for system longevity and safety

## Overview

The Ariston Water Heater Expansion Vessel Kit A features a 2-litre capacity vessel designed to manage pressure up to 10 bar, equipped with a 15mm check valve for safety. Its compact, lightweight design ensures easy installation and space efficiency, making it an ideal upgrade for Ariston water heaters seeking reliable pressure control and system protection.

## Description

Ariston Water Heater Expansion Vessel Kit A Pack Contains: 2 Litre Expansion Vessel 15mm Check Valve Suitable for Ariston Water Heaters

Review: Quality accumulator - Very good quality accumulator definate value for money. Easy installation with compact design, meaning less space taken up by system installation. Excellent buy.
Review: Easy fit expansion vessel - Nice and compact expansion vessel easy to fit with most basic tools ,you will need to get a pipe T connection ...compression or push fit or a solder joint if you like, it came with check valve Very quick delivery

## Features

- Ariston Water Heater Expansion Vessel Kit A
- Capacity 2 litres
- Weight 1.5kg
- Max pressure 10 bar

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00QVMB9KG |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 79,254 in DIY & Tools ( See Top 100 in DIY & Tools ) 163 in Water Heaters & Parts |
| Colour | White |
| Customer Reviews | 4.4 4.4 out of 5 stars (249) |
| Date First Available | 22 Nov. 2013 |
| Item Package Quantity | 1 |
| Item Weight | 1.02 kg |
| Item model number | 445190 |
| Manufacturer | Ariston |
| Package Dimensions | 24.8 x 18.9 x 16 cm; 1.02 kg |
| Part Number | Kit A |
| Plug profile | internal |
| Special Features | Check Valve Safety Feature |

## Product Details

- **Brand:** Ariston
- **Capacity:** 2 litres
- **Colour:** White
- **Material:** Brass, Stainless Steel
- **Special feature:** Check Valve Safety Feature

## Images

![Water Heater Expansion Vessel Kit A - Image 1](https://m.media-amazon.com/images/I/61nQlF8a8jL.jpg)

## Questions & Answers

**Q: Is this expansion vessel is pre-charged on delivery and what is the pre-charged pressure?**
A: The pressure vessel is pre-charged at 3.5 bar.

**Q: Will this stop continual dripping from pressure relief valve on my 10ltr unvented water heater**
A: 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.

**Q: what fitting do i need to connect this to my 15mm pipe work?**
A: 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.

**Q: Is the membrane made from epdm rubber?**
A: 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.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Quality accumulator
*by L***S on 17 January 2022*

Very good quality accumulator definate value for money. Easy installation with compact design, meaning less space taken up by system installation. Excellent buy.

### ⭐⭐⭐⭐⭐ Easy fit expansion vessel
*by R***. on 3 November 2021*

Nice and compact expansion vessel easy to fit with most basic tools ,you will need to get a pipe T connection ...compression or push fit or a solder joint if you like, it came with check valve Very quick delivery

### ⭐⭐⭐⭐ Expansion vessel
*by T***Y on 30 November 2025*

This goes alongside with my all under sink heater been in the flat now for four years and no problems with it

## Frequently Bought Together

- Ariston Water Heater Expansion Vessel Kit A
- Ariston 406802 KIT B 3.5 BAR Pressure REDUCING Valve, Bronze
- Ariston 406807 KIT C Discharge TUNDISH (15MM-22MM), Black

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*Product available on Desertcart Kyrgyzstan*
*Store origin: KG*
*Last updated: 2026-03-08*