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Saunier Duval Flow Restrictor 05428000

Saunier Duval

Saunier Duval Flow Restrictor 05428000

12 litre flow restrictor for Saunier Duval Enviroplus F24E and F28E gas boilers.

At a glance

  • Part type: flow restrictor
  • Appliance family: Enviroplus
  • Also known as 1416423
Manufacturer part no.
05428000
Showing prices

£32.05

£26.71 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 FLOW RESTRICTOR 12 LITRE is a Saunier Duval component for the Enviroplus range of gas boilers. It regulates the volume of water passing through the appliance circuit to a nominal 12 litre rating. The part is supplied under Saunier Duval part number 05428000.

Signs this part needs replacing

  • Reduced water flow rate at the hot water outlets compared with normal operation
  • Flow rate noticeably lower than the rated 12 litre figure the restrictor is designed to pass
  • Scale or debris build-up visible on removal of the restrictor
  • Inconsistent or fluctuating flow through the appliance circuit

Before you order

  • Confirm the boiler model matches one of the Enviroplus variants listed above
  • Check the age of the appliance against the UPTO December 2005 fitment notes
  • Verify the existing restrictor carries the Saunier Duval part number 05428000
  • Inspect the water circuit for scale or debris that may also be restricting flow

Not sure which part?

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