Viessmann
Viessmann Return Valve Unit Grundfos 7825722
Viessmann return valve unit (7825722), a Grundfos-type hydraulic component for Vitodens appliances.
At a glance
- Also known as 2321502
£218.60
£182.17 ex. VAT · VAT at 20%
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
The Viessmann Return Valve Unit Grundfos is a hydraulic assembly fitted within the return circuit of Viessmann Vitodens appliances. It manages return flow through the boiler's internal pipework. This unit is supplied under Viessmann part number 7825722.
Signs this part needs replacing
- Visible weeping or water staining around the valve body or its connections
- Corrosion or scale build-up on the valve assembly
- Restricted or irregular flow through the return circuit
- Circulation noise or vibration from the valve area
- Repeated fault codes linked to flow or temperature differential across the appliance
Before you order
- Confirm the appliance model and serial number against the fits list above
- Check the existing valve assembly and connections for damage before removal
- Verify the part number 7825722 matches the unit being replaced
- Isolate and drain the appliance before fitting
Compliance
| Alternative numbers | 2321502 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VIESSMANN VITODENS 200-W B2HA 19 KW SYSTEM SERIAL No. 7454868 | 41-819-32 | 41-819-32 | — | — |
| VIESSMANN VITODENS 200-W B2HA 30 KW SYSTEM SERIAL No. 7454871 | 41-819-34 | 41-819-34 | — | — |
| VIESSMANN VITODENS 200-W B2HA 35 KW SYSTEM SERIAL No. 7454873 | 41-819-35 | 41-819-35 | — | — |
| VIESSMANN VITODENS 200-W B2KA 26 KW COMBI SERIAL No. 7454870 | 47-819-28 | 47-819-28 | — | — |
| VIESSMANN VITODENS 200-W B2KA 30 KW COMBI SERIAL No. 7454872 | 47-819-29 | 47-819-29 | — | — |
| VIESSMANN VITODENS 200-W B2KA 35 KW COMBI SERIAL No. 7454874 | 47-819-30 | 47-819-30 | — | — |
| VIESSMANN VITODENS 200-W WB2B 19KW SERIAL No. 7248823 | 41-819-14 | 41-819-14 | — | — |
| VIESSMANN VITODENS 200-W WB2B 26KW SERIAL No. 7248824 | 41-819-15 | 41-819-15 | — | — |
| VIESSMANN VITODENS 200-W WB2B 26KW SERIAL No. 7248825 | 47-819-09 | 47-819-09 | — | — |
| VIESSMANN VITODENS 200-W WB2B 30KW SERIAL No. 7248826 | 41-819-16 | 41-819-16 | — | — |
Showing 10 of 17 compatible appliances.
Documents & drawings
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