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Sime Pressure Relief Valve 6040202

Sime

Sime Pressure Relief Valve 6040202

1/2 inch 3 bar pressure relief valve for Sime gas boilers, including Dewy, Avant and Planet Dewy models.

At a glance

  • Also known as 2042028, N1906-J
Manufacturer part no.
6040202
Showing prices

£24.52

£20.43 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 Sime 6040202 is a 1/2 inch pressure relief valve rated at 3 bar. It is fitted to Sime gas boilers, including the Dewy, Avant and Planet Dewy families, and opens to discharge excess pressure from the heating circuit when the set pressure is reached.

Signs this part needs replacing

  • Water continually dripping from the pressure relief discharge pipe
  • System pressure rising above the normal cold-fill level, or falling repeatedly
  • The valve fails to reseat after operating, leaving the discharge pipe wet
  • Scale or corrosion visible around the valve seat or outlet
  • Boiler losing pressure and needing frequent top-ups

Before you order

  • Check your boiler model and GC number against the fitment list above
  • Confirm the existing valve is 1/2 inch with a 3 bar rating
  • Check whether the valve is a separate component or part of an assembly on your appliance
  • Consult the manufacturer's parts list if your model is not listed

Not sure which part?

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