Caleffi Filling Valve for Wolf Boiler CGB K24 Ref. 2070268

Filling valve that allows water to be added to the boiler's heating circuit. The brass body has the label 'CALEFFI' with flow direction arrows, identifying the actual manufacturer of the component. Fits Wolf boilers CGB K20, CGB K24, CGB K40-35, and CGW 24/140. It does not have any model code or additional technical data printed on it.

Type of part: Filling valves
Status: Refurbished
Catalogue reference: 2070268
Warranty: 1 year

VAT included Stock · 3 units

Compatibility

Wolf boilers compatible with reference 2070268

Filling key with reference 2070268. Four confirmed compatibilities: CGB-K-20 and CGB-K-24.

Proven compatibility

Boiler model	Family	Verification
Wolf CGB-K-20	Wolf	Contrasted
Wolf CGB-K-24	Wolf	Contrasted
Wolf CGB-K-40-35	Wolf	Contrasted
Wolf CGW-24/140	Wolf	Contrasted

Can't see your model or have questions? The printed reference takes precedence. How to check it · Send us a photo via WhatsApp.

Guide

How to check if ref. 2070268 is the part for your boiler

The part reference, model, and equipment revision must be verified against the manufacturer's documentation.

Find the reference printed on the installed part and check whether it matches the catalogue reference 2070268. If it is not visible, do not identify the part from its shape alone.
Check the full boiler model on its data plate and look for it in the model associations on this page.
Compare the connections and physical body with the original part before installation.
If anything is unclear, send us a photo of the marking via WhatsApp before placing your order.

Diagnosis and fault codes

Symptoms that require diagnosis in the filling valve 2070268

The filling valve allows water to refill the heating circuit. These are the typical symptoms and what to do:

Common symptoms and faults

01
No water enters when opening the filling valve to increase pressure.
Cause: The internal mechanism is blocked or the passage is obstructed by accumulated limescale debris.
Check that the main water shut-off valve of the house is open, as this is the most common cause.
02
The boiler pressure drops on its own and needs to be refilled very often.
Cause: The valve does not close completely and allows a continuous trickle of water to flow into the circuit.
Close the valve tightly, wait a few minutes, and check if the pressure gauge continues to rise without having touched it.
03
Is water leaking from the body or from the control of the valve?
Cause: The internal gasket has lost its tightness after many cycles of opening and closing.
Dry the area and check if the drop reappears as soon as you open the tap, to rule out that the leak is coming from a nearby connection.
04
It's difficult to turn, it's stuck after months of not being used.
Cause: Limescale deposits in the internal mechanism block the rotation of the control knob.
Handle it gently, without forcing it when cold; if it doesn't give, don't insist with tools.

These symptoms can have more than one cause. If your boiler displays a fault code, send it to us via WhatsApp along with a photo of the labeling, and we'll tell you if this is the part.

Technical data

Data sheet for the filling key Wolf 2070268

Catalogue reference: 2070268
Uniclima internal SKU: LLCWCGBK24
Brand: Wolf
Type of part: Filling valves
Units in stock: 3 units
Status: Refurbished
Warranty: 1 year
Shipping: Delivery time shown at checkout
Return: 14 days

Part data and available documentation

Contrast the label codes, PCB, and revision with the installed part; they are not necessarily equivalent references.

Actual manufacturer of the component: Caleffi

Before purchasing

The manufacturer printed on the part is Caleffi, not Wolf. Wolf is the boiler manufacturer; the filling valve it uses is from Caleffi.

Frequently Asked Questions

Frequently asked questions about the filling key 2070268

Does the Caleffi filling key work for the Wolf CGB K24 boiler?

Yes, it is listed as compatible with the Wolf CGB K24, as well as CGB K20, CGB K40-35, and CGW 24/140.

Who manufactures the filling valve used in the Wolf CGB K24?

The brass body carries the CALEFFI label with flow direction arrows, which identifies the actual manufacturer of the part.

Is the reference 2070268 engraved on the body of the valve?

No; it is the spare part number published by Wolf. The part only has the manufacturer's label and the flow arrows.

Does this filling key also work for the Wolf CGW 24/140?

Yes, it is listed as compatible with the Wolf CGW 24/140, as well as the CGB K20, K24, and K40-35 range.

How do I distinguish the installation direction of the Caleffi filling valve?

The body has printed arrows next to the CALEFFI label indicating the direction of water flow.

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1-year warranty reviewed and tested

14-day return uninstalled parts

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Caleffi Filling Valve for Wolf Boiler CGB K24 Ref. 2070268