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Johnson & Starley Temperature and Pressure Relief Valve S00821

Johnson & Starley

Johnson & Starley Temperature and Pressure Relief Valve S00821

Temperature and pressure relief valve from Johnson & Starley, manufacturer part number S00821.

At a glance

  • Also known as 1690642
Manufacturer part no.
S00821
Showing prices

£70.56

£58.80 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 Johnson & Starley Temperature and Pressure Relief Valve, part number S00821, is a valve that relieves excess temperature and pressure from a heating system. It is supplied under the Johnson & Starley brand and is listed by that product name. The part number S00821 identifies this valve.

Before you order

  • Check that the valve being replaced is marked with the part number S00821, or that S00821 is the correct number for the appliance in hand.
  • Confirm the manufacturer name shown on the existing component matches Johnson & Starley.
  • Confirm the valve function required is temperature and pressure relief, not pressure relief alone.
  • Have the appliance model details available when cross-checking the part number.

Not sure which part?

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