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Andrews C853 Temperature Pressure Valve 1 1/2

Andrews

Andrews C853 Temperature Pressure Valve 1 1/2

Andrews C853 temperature and pressure relief valve with a 1 1/2 inch connection for Andrews water heaters.

At a glance

  • Also known as 1821920
Manufacturer part no.
C853
Showing prices

£2,142.82

£1,785.68 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 Andrews C853 is a temperature and pressure relief valve with a 1 1/2 inch connection. It is fitted to Andrews water heaters and hot water appliances, where it opens to discharge water if the stored water exceeds its set temperature or pressure limits. The valve forms part of the appliance's safety circuit and protects the cylinder or vessel from over-pressure and over-temperature conditions.

Signs this part needs replacing

  • Water weeping or discharging continuously from the valve outlet when the appliance is not under fault conditions
  • The valve fails to reseat after a pressure or temperature discharge, leaving a steady drip
  • Discharge occurs during normal heating cycles, indicating a weakened spring or damaged seat
  • Scale, corrosion or mineral build-up around the valve body or outlet
  • The valve lever will not operate freely, or the valve does not discharge when manually tested

Before you order

  • Confirm the appliance model and serial number against the manufacturer's parts list
  • Check the existing valve connection size is 1 1/2 inch
  • Verify the pressure and temperature ratings required for the installation
  • Inspect the discharge pipework and tundish for condition before fitting

Not sure which part?

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