Description
Worcester 8716118463 Valve Filling Loop & Drain – Compatible with Greenstar Highflow & Danesmoor Boilers
The Worcester valve filling loop and drain 8716118463 helps you top up boiler pressure and drain the system when needed, so your heating system can operate safely and correctly. However, if this valve becomes faulty or starts leaking, it can make servicing more difficult and affect pressure control. Therefore, replacing it with the correct brand new part helps restore smooth maintenance, reliable filling, and proper system operation.
Compatible Boilers
This part is compatible with the following models:
Greenstar Highflow Series
- 440 – GC No. 47-311-82
- 440 CDI ErP – GC No. 47-406-89
- 440 CDI ErP LPG – GC No. 47-406-90
- 550 CDI – GC No. 47-406-25
- 550 CDI ErP – GC No. 47-406-91
- 550 CDI ErP LPG – GC No. 47-406-92
Danesmoor Utility Regular ERP+ Series
- 32/50 – Ref. 7731600171
- 50/70 – Ref. 7731600172
Why Choose This Product?
This brand new Worcester filling loop and drain valve offers a simple and reliable way to restore safe system filling and draining. In addition, it helps support correct boiler pressure management and smoother servicing when the original part becomes worn or faulty.
Delivery and Return
Order before 1 PM for same-day dispatch with standard and next-day delivery options available. Returns are accepted within 30 days if the part is unused and in its original packaging. Always use a qualified engineer for installation and system checks.
Frequently Asked Questions
1. What does this filling loop and drain valve do?
This part helps you fill the heating system to the correct pressure and drain water when servicing is required. As a result, it plays an important role in routine maintenance and correct boiler operation.
2. Why would this valve need replacing?
If the valve becomes damaged, worn, or starts leaking, it may no longer control filling or draining properly. Therefore, replacing it can help restore safe use and improve servicing reliability.
3. Is this part brand new?
Yes, this listing is for a brand new Worcester valve filling loop and drain. That means it is suitable for direct replacement where the part number matches your existing component.
4. How do I check compatibility?
Match part number 8716118463 with the number on your existing part or your boiler’s parts diagram. This is important because Worcester components can vary across different boiler models and versions.
5. Should a professional install this part?
Yes, a qualified engineer should install and check the part to make sure the system works safely and correctly. Professional fitting also helps avoid leaks, pressure issues, and incorrect installation.





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