RWC 8 Litre Potable Water Expansion Vessel
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The RWC 8 Litre Potable Water Expansion Vessel (model XVES050030) is designed to regulate pressure within unvented domestic hot water systems, protecting plumbing components and ensuring reliable performance. Suitable for use with mains-fed systems, it prevents pressure fluctuations caused by water expansion during heating, reducing the risk of leaks and extending the life of your system.
This expansion vessel is WRAS approved for potable (drinking) water applications, making it a trusted choice for installers and homeowners alike. Compact in size and built with a durable diaphragm, it ensures safety and compliance with UK regulations.
Key Features
- 8 litre capacity expansion vessel for potable water systems
- WRAS approved for use with drinking water
- Durable diaphragm membrane with long service life
- Keeps hot water systems safe and balanced
- 3/4" MBSP connection for quick installation
- Compact design suitable for tight spaces
Applications
- Unvented hot water cylinders
- Mains-fed potable water systems
- Domestic and light commercial use
Technical Specification
| Brand | RWC |
| Model | XVES050030 |
| Type | Expansion Vessel (Potable Water) |
| Capacity | 8 Litres |
| Connection | 3/4" MBSP |
| Max. Operating Pressure | 10 bar |
| Pre-charge Pressure | 3.5 bar |
| Approval | WRAS approved |
| Orientation | Vertical mount |
| Application | Potable (drinking) water systems |
What's Included
- RWC 8 Litre Expansion Vessel – XVES050030
- Instruction manual
- Type Potable Expansion Vessel
- Vendor Reliance
- SKU K99779
Please note: Delivery times may vary depending on location, with specific details outlined below.
Standard Delivery
UK Mainland
- Delivery Time: 2–4 working days
- Free Delivery on all orders
Express Delivery
UK Mainland
- Delivery Time: 1–3 working days
- Delivery fee of £15
Channel Islands
- Postcodes Covered: GY*, IM*, JE*
- Minimum Order: £50
- Delivery Fee: £70
Northern Ireland, Offshore Territories & Scottish Islands
- Postcodes Covered: BT*, HS*, KW, ZE
- Minimum Order: £50
- Delivery Fee: £35
Same Day Delivery
- Eligible Postcodes:
E*, EC*, N*, NW*, SE*, SW*, W*, WC*, HA*, UB*, EN*, IG*, RM*, KT*, SM*, CR*, BR*, DA*, TW* - Minimum Order: £50
- Same Day Delivery Fee: £60
- Special Requests or Locations:
For areas outside these postcodes or urgent quotes, please email orders@qualityheating.co.uk and we’ll do our best to accommodate.
Collections
Want to collect your order instead?You’re welcome to do so — just email us at orders@qualityheating.co.uk or message us via WhatsApp with your preferred collection time, and we’ll confirm the details.
Collection address: 284 Water Rd, Unit 9, London, HA0 1HX