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

Verify the reference 8705407005 printed and ensure your model is on the list of compatible ones; also compare the connections with the original part. It is a Junkers (Bosch) piece.

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.

RefurbishedJunkers Expansion vessels

Expansion Vessel Junkers Euroline ZW23 1 AE23 Ref. 8705407005

Name: Expansion Vessel Junkers Euroline ZW23 1 AE23 Ref. 8705407005
Brand: Junkers
SKU: VECEZW231
Price: 45 EUR
Availability: InStock

45 €VAT includedIn stock · 1 unit

Expansion vessel: reconditioned spare part that absorbs the expansion of water when heated. Useful if the pressure rises significantly when heating or if the safety valve is triggered. Compatible with Euroline ZW23-1 AE23, Euroline ZW23-1 AE31, Euroline ZW23-1 KE23 (ref. 8705407005). 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: 8705407005
Brand: Junkers
Type of part: Expansion vessels
Available units: 1 unit in stock
Status: Refurbished
Warranty: 1 year
Shipping: 2–4 working days (EU)
Return: 14 days

The same part (ref. 8705407005) equips these models. Verified compatibility; check the reference before purchasing.

Junkers

Euroline ZW23-1 AE23
Euroline ZW23-1 AE31
Euroline ZW23-1 KE23
Euroline ZW23-1 KE31
Euroline ZW24 AE23
Euroline ZW24 AE31
Euroline ZW24 KE23
Euroline ZW24 KE31
Euroline ZW24-1LH AE23
Euroline ZS23-1 AE23
Euroline ZS23-1 AE31
Euroline ZS23-1 KE23
Euroline ZS23-1 KE31
Ceraclass Midi

Neckar

Appliance (Euroline range)

How do I know if this expansion vessel is for my boiler?: Verify the reference 8705407005 printed and ensure your model is on the list of compatible ones; also compare the connections with the original part. It is a Junkers (Bosch) piece.
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.

Expansion Vessel Junkers Euroline ZW23 1 AE23 Ref. 8705407005

Key Data

Junkers

Neckar

Spare Parts Related Boiler Euroline ZW23 1 AE23