Worcester 8716117023 Expansion Vessel with PRV Greenstar i Combi System

Description

Worcester 8716117023 Expansion Vessel with PRV 87161064310

The Worcester 8716117023 expansion vessel controls pressure inside the boiler heating system.

This vessel absorbs expansion when water heats up and prevents pressure from rising too high.

This unit includes the pressure relief valve (PRV).

If the expansion vessel fails, the boiler may lose pressure or the PRV may start leaking.

Replacing the Worcester expansion vessel fixes pressure issues and protects the boiler.

Compatible Boilers :

This part is compatible with the following Worcester Greenstar models:

Greenstar Combi ERP Series:

• Greenstar 25i Combi ERP (GC No. 47-406-60)

• Greenstar 25i Combi ERP LPG (GC No. 47-406-61)

• Greenstar 30i Combi ERP (GC No. 47-406-62)

• Greenstar 30i Combi ERP LPG (GC No. 47-406-63)

Greenstar System ERP Series:

• Greenstar 9 i System ERP (GC No. 41-406-21)

• Greenstar 9 i System ERP LPG (GC No. 41-406-22)

• Greenstar 12 i System ERP (GC No. 41-406-23)

• Greenstar 12 i System ERP LPG (GC No. 41-406-24)

• Greenstar 15 i System ERP (GC No. 41-406-25)

• Greenstar 15 i System ERP LPG (GC No. 41-406-26)

• Greenstar 18 i System ERP (GC No. 41-406-27)

• Greenstar 18 i System ERP LPG (GC No. 41-406-28)

• Greenstar 21 i System ERP (GC No. 41-406-29)

• Greenstar 21 i System ERP LPG (GC No. 41-406-30)

• Greenstar 24 i System ERP (GC No. 41-406-31)

• Greenstar 24 i System ERP LPG (GC No. 41-406-32)

Why Choose This Product?

The 8716117023-expansion vessel keeps your boiler system balanced and prevents pressure issues. It reduces the risk of leaks and costly repairs. Manufactured to OEM standards, this part fits perfectly and performs reliably. Installation is simple, helping you restore your boiler’s efficiency quickly. This vessel ensures safe, stable heating all year long.

Delivery and Return

Order before 1 PM for same-day dispatch. We offer standard and next-day delivery options. Returns are accepted within 30 days if items remain unused and unopened.

Always use a Gas Safe registered engineer to install boiler parts safely and legally.