
Ariston 406802 3.5 Bar Pressure Reducing Valve For Ariston Andris LUX & LUX Eco
406802
Range Options
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3100306 | 2kW, 10 Litre, Undersink | £138.69 £115.57 |
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3100310 | 2kW, 15 Litre, Undersink | £154.23 £128.53 |
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3100717 | 2.5kW, 10 Litre, Oversink | £153.60 £128.00 |
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3100718 | 2.5kW, 10 Litre, Undersink | £153.60 £128.00 |
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3100721 | 2.5kW, 15 Litre, Oversink | £174.00 £145.00 |
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3100722 | 2.5kW, 15 Litre, Undersink | £174.00 £145.00 |
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3100302 | 3kW, 10 Litre, Oversink | £189.92 £158.26 |
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3100303 | 3kW, 10 Litre, Undersink | £156.00 £130.00 |
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3100308 | 3kW, 15 Litre, Oversink | £174.00 £145.00 |
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3100309 | 3kW, 15 Litre, Undersink | £174.00 £145.00 |
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3820017 | 3kW, 30 Litre, Oversink | £420.00 £350.00 |
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406801 | Exp Vessel & Non-Return | £43.91 £36.59 |
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406802 | Pressure Reducing Valve | £35.63 £29.69 |
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406807 | Tundish | £8.64 £7.20 |
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Ariston 406802 3.5 Bar Pressure Reducing Valve – For Andris LUX & LUX Eco Water Heaters
The Ariston 406802 Pressure Reducing Valve ensures your Andris LUX and LUX Eco water heaters operate safely within design limits by regulating high incoming water pressure to a maximum of 3.5 bar.
- Prevents Overpressure: Regulates mains water pressure to a maximum of 3.5 bar, protecting the heater from excess strain.
- Essential for Compliance: Required for safe operation of unvented systems in line with manufacturer recommendations.
- Manufacturer Matched: Specifically designed for use with Ariston Andris LUX and LUX Eco units.
- Inline Installation: Fits neatly into the cold water supply line to ensure consistent pressure control.
- Reliable Operation: Maintains safe, stable system performance and extends product lifespan.
Technical Specification
- Product Type: Pressure reducing valve
- Maximum Outlet Pressure: 3.5 bar
- Compatibility: Ariston Andris LUX & LUX Eco
- Installation: Inline with cold water inlet
- System Type: Domestic hot water (unvented)
✅ Ensure safe and efficient performance of your Ariston water heater with this pressure reducing valve – fully compatible and regulation ready.

Range | Ariston Andris Lux |
Product | Water Heating |
Type | Pressure Reducing Valve |
Delivery Options:
- PRIORITY DELIVERY – Next Working Day (All items in stock and ordered before 3 pm) - £7.08 inc-VAT. (£5.90 ex-VAT)
- Orders Over £100 (before VAT): We offer free standard shipping on all orders shipped to UK mainland addresses
- Orders under £100 (before VAT): Our standard delivery fee to UK mainland addresses is £5.90 ex-VAT (£7.08 inc-VAT)
*Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £12 ex-VAT for all orders (Prices subject to change).
Items requiring specialist shipping:
- Orders containing Solar Panels, Batteries and/or Inverters: Up to 50 qty will be dispatched on a pallet and incur a £120 ex-VAT delivery charge**.
**Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £180 ex-VAT (Prices subject to change).
Contact us if you have any further questions.