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Worcester Bosch Pressure Relief Valve 1/2 Inch 15mm 87161424160

Worcester Bosch

Worcester Bosch Pressure Relief Valve 1/2 Inch 15mm 87161424160

At a glance

  • Part type: Pressure relief valve
  • Also known as WB87161424160, 1018183, N2081-A
Manufacturer part no.
87161424160
GC number
386-789
Showing prices

£19.78

£16.48 ex. VAT · VAT at 20%

In stock
Cut-off passed — dispatches next working day
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 87161424160 is a pressure relief valve with 1/2 inch, 15mm and 1/8 inch connections. It is fitted to Worcester Bosch gas and oil appliances, including the 200 series, Greenstar Highflow CDi, Heatslave, Camray and Classic System ranges. Its job is to open and discharge water when system pressure climbs above the set limit, protecting the boiler, cylinder and pipework from over-pressurisation.

Signs this part needs replacing

  • Water discharging from the relief pipework while the system is cold and at normal pressure
  • System pressure dropping repeatedly, with frequent topping up needed
  • Visible weeping or dripping from the valve body or its outlet
  • Scale, sludge or debris sitting on the valve seat and stopping it from sealing
  • Pressure gauge reading climbing above the normal operating range during heating

Before you order

  • Check the GC number or the appliance serial plate against the compatibility list before ordering.
  • Confirm the previous number ZCVLV018 if you are working from an older Worcester Bosch parts list.
  • Inspect the valve seat and sealing face on removal; a replacement washer or seal may be needed at the same time.

Not sure which part?

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