Vaillant
Vaillant Pressure Relief Valve Brine 3 Bar 0020222860
Vaillant 3 bar brine circuit pressure relief valve, part number 0020222860, for VWF and Flexotherm heat pumps.
At a glance
- Part type: brine circuit pressure relief valve
- Also known as 1386786
£34.07
£28.39 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 Vaillant 0020222860 is a 3 bar pressure relief valve for the brine circuit of Vaillant brine-to-water heat pumps. It opens to discharge brine when circuit pressure rises above the set 3 bar threshold, protecting the heat exchanger and associated pipework. It is used across the VWF and Flexotherm appliance ranges.
Signs this part needs replacing
- Brine weeping or discharging from the valve outlet with the circuit at normal operating pressure
- Circuit pressure repeatedly falling with no leak visible elsewhere on the system
- Valve failing to open, allowing circuit pressure to rise above 3 bar
- Corrosion, scale or frost damage around the valve body or seat
- Valve stuck open, causing continuous loss of brine from the circuit
Before you order
- Confirm the appliance model matches one of the fit lines listed above
- Check that the existing valve is rated at 3 bar
- Check the part number on the existing valve or against the manufacturer's parts list
Compliance
| Alternative numbers | 1386786 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VAILLANT VWF 157/4 | — | — | — | |
| VAILLANT VWF 197/4 | — | — | — | |
| VAILLANT VWF 57/4 230V | — | — | — | |
| VAILLANT VWF 87/4 230V | — | — | — | |
| VAILLANT flexoTHERM VWF 157/4 | — | — | — | |
| VAILLANT flexoTHERM VWF 197/4 | — | — | — | |
| VAILLANT flexoTHERM VWF 57/4 230V | — | — | — | |
| VAILLANT flexoTHERM VWF 87/4 230V | — | — | — |
Documents & drawings
Everything we hold for this part. Where a document exists but we don't hold it, the technical team will source it from the manufacturer — usually the same working day.
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