Vaillant
Vaillant Water Quantity Regulator 115301
Water quantity regulator, part 115301, for Vaillant MAG and MAG Mini water heaters.
At a glance
- Part type: water quantity regulator
- Appliance family: MAG and MAG Mini water heaters
- Also known as 1387280
£9.67
£8.06 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 water quantity regulator is a Vaillant component, part number 115301, used in MAG and MAG Mini water heaters. It regulates the quantity of water passing through the appliance as part of the unit's water circuit. It is a serviceable part intended for fitment to the appliance families listed below.
Signs this part needs replacing
- Hot water flow rate through the appliance becomes inconsistent or difficult to regulate
- Water quantity varies noticeably with changes in inlet pressure
- Visible scale, debris or obstruction at the regulator
- Water weeping or leaking from the regulator body or its connections
- Poor flow control at low inlet pressures
Before you order
- Confirm the appliance model from the rating plate matches one of the fitments listed above
- Check the existing component is marked with part number 115301
- Confirm the appliance is a MAG or MAG Mini water heater before ordering
Compliance
| Alternative numbers | 1387280 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VAILLANT MAG 14-0/0 XI (2004-2009) | — | — | — | |
| VAILLANT MAG 14-0/0 XZ (2004-2009) | — | — | — | |
| VAILLANT MAG mini 11-0/0 XI (2004) | — | — | — | |
| VAILLANT MAG mini 11-0/0 XZ (2004) | — | — | — |
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.
No technical questions yet for this part.
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