Expansion Vessel Compatible with Vaillant Ecotec 181051 | 10L | All Models
Expansion Vessel Compatible with Vaillant Ecotec 181051 — 10 Litres
Aftermarket replacement expansion vessel compatible with Vaillant Ecotec sealed heating systems. This 10-litre rectangular vessel absorbs water expansion during heat-up to maintain stable system pressure, prevent PRV discharge, and protect the heat exchanger from damage. Supplied with washer for installation.
Note: This is an aftermarket compatible part, not a genuine Vaillant OEM component. Must be fitted and pre-charged by a Gas Safe registered engineer.
Key Features
- Compatible with Vaillant part reference 181051
- 10-litre capacity — rectangular design
- 3/8" connection
- Absorbs water expansion to maintain stable system pressure
- Prevents PRV discharge and protects heat exchanger
- Supplied with washer for installation
- Compatible with ecoTEC Plus, ecoTEC Pro, and ecomax models
Technical Specification
| Compatible Part Ref | 181051 (Vaillant) |
| Type | Aftermarket compatible |
| Capacity | 10 litres |
| Form Factor | Rectangular |
| Connection | 3/8" |
| Dimensions | H 435mm × W 250mm × D 100mm (approx.) |
| Compatibility | ecoTEC Plus (824, 831, 837, 937), ecoTEC Pro (24, 28), ecomax VU/VUW |
| Included | Washer |
| Installation | Gas Safe registered engineer required |
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