Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
Vaillant Flow Restrictor 0020183718

Vaillant

Vaillant Flow Restrictor 0020183718

Vaillant 0020183718 flow restrictor for ecoTEC PRO 22 and 26 appliances, specified for Guernsey and Jersey variants.

At a glance

  • Also known as 1387860
Manufacturer part no.
0020183718
Showing prices

£9.31

£7.76 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 Vaillant 0020183718 is a flow restrictor used in ecoTEC PRO 22 and ecoTEC PRO 26 appliances. It limits the volume of water passing through the relevant circuit so the boiler can hold its designed flow rate. This variant is specified for units supplied in Guernsey and Jersey only.

Signs this part needs replacing

  • Reduced flow rate at hot water outlets
  • Boiler failing to reach its expected delivery temperature
  • Scale or debris build-up restricting the restrictor orifice
  • Water passing or weeping around a damaged restrictor
  • Flow-related fault codes or lockouts on the appliance

Before you order

  • Confirm the appliance model and build revision match the list above
  • Check whether the installation is a Guernsey or Jersey variant, as this restrictor is specified for those only
  • Inspect the existing restrictor for scale, damage or incorrect fitment before ordering

Not sure which part?

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