Boiler Filling Loop 15mm WRAS Approved | Part L Compliant with Double Check Valve
£9.99 Inc VAT
PlumbEZ boiler filling loop 15mm is WRAS approved and Part L compliant for topping up sealed combi boiler systems. Includes double check valve, isolation valve and end caps.
Free UK delivery over £150 Inc VAT
Delivery time approximately 3-5 working days
In stock
The PlumbEZ WRAS Approved Boiler Filling Loop (15mm) is designed for topping up sealed central heating systems on combi boilers. It provides a controlled way to refill the system when pressure drops, helping keep your heating running efficiently and reliably.
This filling loop is WRAS approved and Part L compliant, making it suitable for modern heating installations. It includes a double check valve to help prevent backflow, an isolation valve for easy control, and end caps for a neat, secure finish when the hose is not in use.
Key features
- 15mm connection – common size for combi boiler filling loops
- WRAS approved for water safety standards
- Part L compliant – suitable for current building regulation requirements
- Double check valve to help prevent backflow/contamination risk
- Isolation valve for straightforward shut-off and maintenance
- End caps included for added protection and a tidy install
Typical uses
- Topping up pressure on sealed central heating systems
- Combi boiler refill / boiler top-up hose replacement
- Heating system maintenance and upgrades
Installation notes
- Fit only where appropriate for your boiler/system design.
- After topping up, close the isolation valve and refit end caps.
- Always follow manufacturer instructions and local regulations.
| Brand | PlumbEZ |
|---|---|
| Pipe Size | 15mm |
| Product Type | Filling Loop |
| Approval | WRAS approved |
| Compliance | Part L compliant |
| Valves | Double check valve; isolation valve |
| Includes | End caps |
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Q: What is a boiler filling loop used for?
A: It’s used to top up pressure in a sealed central heating system (commonly on combi boilers) when the system pressure drops.
Q: What size is this filling loop?
A: 15mm.
Q: What does WRAS approved mean?
A: It means the product meets recognised UK water safety standards for materials and backflow protection where applicable.
Q: What does the double check valve do?
A: It helps prevent backflow, reducing the risk of contamination returning into the water supply.
Q: What does Part L compliant mean?
A: It’s designed to meet Part L requirements relating to energy efficiency and compliant heating system components.
Q: Do I need to leave the filling loop connected?
A: In many setups the loop is only connected/used for topping up, then isolated and capped. Follow your boiler manufacturer guidance and local regulations.
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