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Andrews Temperature/Pressure Relief Valve C456AWH

Andrews

Andrews Temperature/Pressure Relief Valve C456AWH

3/4 inch temperature and pressure relief valve for Andrews water heaters, part number C456AWH.

At a glance

  • Also known as 1820050
Manufacturer part no.
C456AWH
Showing prices

£242.40

£202.00 ex. VAT · VAT at 20%

Available to order · 7 working days
Available to order · 7 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 Andrews C456AWH is a 3/4 inch temperature and pressure relief valve for Andrews water heaters. It discharges water if the stored water temperature or system pressure rises beyond safe limits, protecting the appliance and the installation.

Signs this part needs replacing

  • Water weeping or dripping from the valve outlet when the system is at normal temperature and pressure
  • Continuous discharge from the valve
  • The valve fails to open when the test lever is operated
  • The valve does not reseat and continues to pass water after testing
  • Scale, corrosion or mineral build-up around the valve body or outlet

Before you order

  • Confirm the valve connection size and thread match the appliance
  • Check the appliance model against the manufacturer's parts list
  • Verify the valve's temperature and pressure ratings suit the installation

Not sure which part?

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