How do I know if this expansion vessel is for my boiler?

Verify the reference 05236600 printed and ensure your model is on the list of compatible ones; also compare the connections with the original part.

The expansion vessel absorbs the expansion of water when heated.

Does the pressure rise significantly when heating, or does the safety valve trip?

It usually indicates the expansion vessel is discharged.

Which models is it suitable for?

Part shared by various models (see Compatibility). If your model does not appear, send us a photo of the marking and we will confirm it.

Installation and recommendations

Check and recharge the air pre-charge of the expansion vessel.

What does refurbished mean and what coverage does it have?

Part removed from a boiler out of service, inspected and tested. Includes 1-year warranty and 14-day return policy. Delivery within 2–4 working days in the EU.

RefurbishedSaunier Duval Expansion vessels

Expansion Vessel Saunier Duval Isofast C 28 E Ref. 05236600

Name: Expansion Vessel Saunier Duval Isofast C 28 E Ref. 05236600
Brand: Saunier Duval
SKU: VASEXISOC28E
Price: 45 EUR
Availability: InStock

45 €VAT includedIn stock · 5 units

Expansion vessel: refurbished spare part that absorbs the expansion of water when heated. Useful if the pressure rises significantly when heating or if the safety valve trips. Compatible with Isofast C 28 E, Isofast C 28 E1, Isofast F 28 E (ref. 05236600). Includes a one-year warranty and delivery within 2–4 working days in the EU.

Consult via WhatsApp

Not sure if it's your part? Send us a photo of the screen printing via WhatsApp and we'll confirm compatibility before you purchase.

Delivery in 2–4 working days

1-year warranty

14-day return

Technical support

Key Data

Reference: 05236600
Brand: Saunier Duval
Type of part: Expansion vessels
Available units: 5 units in stock
Status: Refurbished
Warranty: 1 year
Shipping: 2–4 working days (EU)
Return: 14 days

The same part (ref. 05236600) equips these models. Verified compatibility; check the reference before purchasing.

Isofast

Isofast C 28 E
Isofast C 28 E1
Isofast F 28 E
Isofast F 28 E1

Ecosy

Ecosy 24E
Ecosy 24E1
Ecosy 28
Ecosy 28E

Themis

Themis 123
Themis 214/23
Themis 214/23CE
Themis 223
Themis 223CE
Themis 23E(CE)
Themis AS 14
Themis AS 14CE
Themis AS 23
Themis AS 23CE

SD

SD 135 C
SD 228 C
SD 235 C
SD 235 mE

How do I know if this expansion vessel is for my boiler?: Verify the reference 05236600 printed and ensure your model is on the list of compatible ones; also compare the connections with the original part.
What is it used for?: The expansion vessel absorbs the expansion of water when heated.
Does the pressure rise significantly when heating, or does the safety valve trip?: It usually indicates the expansion vessel is discharged.
Which models is it suitable for?: Part shared by various models (see Compatibility). If your model does not appear, send us a photo of the marking and we will confirm it.
Installation and recommendations: Check and recharge the air pre-charge of the expansion vessel.
What does refurbished mean and what coverage does it have?: Part removed from a boiler out of service, inspected and tested. Includes 1-year warranty and 14-day return policy. Delivery within 2–4 working days in the EU.