Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
Hanicks
Basket
Worcester Bosch Pressure Relief Valve 1/2 Inch 8716118467

Worcester Bosch

Worcester Bosch Pressure Relief Valve 1/2 Inch 8716118467

Worcester Bosch 8716118467 pressure relief valve, 1/2 inch connection, for Greenstar Highflow 440CDi combi models.

At a glance

  • Part type: Temperature and pressure relief valve
  • Also known as 1030628
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Manufacturer part no.
8716118467
GC number
H92-219
Showing prices

£18.37

£15.31 ex. VAT · VAT at 20%

Available to order · 3 working days
Available to order · 3 working days
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question

Same-day dispatch

Ordered by 4pm Mon–Fri, 10:30am Sat.

30-day returns

Unused, in original packaging.

What it is

The Worcester Bosch 8716118467 is a 1/2 inch pressure relief valve used on Worcester Greenstar Highflow 440CDi appliances. It is a temperature and pressure relief valve that opens when system pressure or temperature rises beyond the set limit, discharging water safely rather than allowing the boiler or cylinder to over-pressurise. It is a direct replacement for the original valve fitted to these models.

Signs this part needs replacing

  • Water weeping or dripping from the discharge pipe when the system is at normal pressure
  • Boiler losing pressure repeatedly and needing frequent top-ups
  • Visible scale, corrosion or debris around the valve seat or outlet
  • Discharge pipe running continuously, indicating the valve is stuck open
  • System pressure climbing above the normal cold-fill reading despite no recent filling

Before you order

  • Check the GC number and appliance serial plate to confirm the valve matches your model before ordering.
  • Compare the previous part numbers 8-718-686-507-0 and 87186865070 against the valve currently fitted.
  • Inspect the sealing washer or gasket at the valve connection and replace it if it is compressed or perished.
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.

Not sure which part?

Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.