Vaillant
Vaillant Pressure Relief Valve 0020166543
Pressure relief valve for Vaillant VPM 15 D and VPM 30 D pump units, part number 0020166543.
At a glance
- Appliance family: VPM pump units
- Also known as 1387756
£26.56
£22.13 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 0020166543 is a pressure relief valve used in Vaillant VPM pump units. It opens to discharge water when system pressure rises above the valve setting, protecting the appliance and associated pipework from over-pressurisation. It is fitted across the VPM 15 D and VPM 30 D pump unit range.
Signs this part needs replacing
- Water continually weeping or dripping from the valve discharge pipe
- System pressure dropping repeatedly with no visible leak elsewhere on the system
- Valve failing to reseat after operating, leaving a permanent drip
- Discharge occurring at normal system operating pressure
- Scale or debris holding the valve partially open
Before you order
- Confirm your appliance model matches one of the fitment lines above
- Check the part number on the existing valve against 0020166543
- Confirm the discharge is coming from the relief valve and not another component
- If the valve has been passing, have system pressure and the expansion vessel checked
Compliance
| Alternative numbers | 1387756 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VAILLANT PUMP UNIT VPM 15 D | — | — | — | |
| VAILLANT PUMP UNIT VPM 30 D | — | — | — | |
| VAILLANT VPM 15 D | — | — | — | |
| VAILLANT VPM 30 D | — | — | — |
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.
No documents held for this part. The technical team will source them from the manufacturer — usually the same working day.
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