How do I know if this filling valve is for my boiler?

Verify the reference 0020212572 printed and ensure your model is on the list of compatible ones; also compare the connections with the original part. It is a Vaillant Group piece (common spare part for Hermann / Saunier Duval / Vaillant / Protherm).

The filling valve allows the heating circuit to be refilled with water.

Does it not fill, leak, or not close properly?

Seized valve, leaking or not sealing.

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 seals and the connection to the circuit.

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.

RefurbishedHermann Filling valves

Filling Key Hermann Saunier Duval Micraplus Condens 25 A Ref. 0020212572

Name: Filling Key Hermann Saunier Duval Micraplus Condens 25 A Ref. 0020212572
Brand: Hermann
SKU: LLMC25A
Price: 15 EUR
Availability: InStock

15 €VAT includedIn stock · 1 unit

Filling valve: reconditioned spare part that allows refilling the heating circuit with water. Useful if it doesn't fill, leaks, or doesn't close properly. Compatible with Micraplus Condens 25-A, Micraplus Condens 30-A, MicraCom Cds 28-AS/1 (ref. 0020212572). 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: 0020212572
Brand: Hermann
Type of part: Filling valves
Available units: 1 unit in stock
Status: Refurbished
Warranty: 1 year
Shipping: 2–4 working days (EU)
Return: 14 days

The same part (ref. 0020212572) equips these models. Verified compatibility; check the reference before purchasing.

Hermann

Micraplus Condens 25-A
Micraplus Condens 30-A
MicraCom Cds 28-AS/1

Saunier Duval

Isofast Condens 35-B
Isomax Condens 35-B

Vaillant

Puma Cds 18/24 MKV-AS/1
Puma Cds 24/28 MKV-AS/1
Puma Condens 18/24 MKV-AS/1

How do I know if this filling valve is for my boiler?: Verify the reference 0020212572 printed and ensure your model is on the list of compatible ones; also compare the connections with the original part. It is a Vaillant Group piece (common spare part for Hermann / Saunier Duval / Vaillant / Protherm).
What is it used for?: The filling valve allows the heating circuit to be refilled with water.
Does it not fill, leak, or not close properly?: Seized valve, leaking or not sealing.
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 seals and the connection to the circuit.
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.