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Vaillant Reducing Nipple 0020176335

Vaillant

Vaillant Reducing Nipple 0020176335

Vaillant reducing nipple, part number 0020176335, for use in VPM 15 D and VPM 30 D pump units.

At a glance

  • Part type: reducing nipple
  • Also known as 1387820
Manufacturer part no.
0020176335
Showing prices

£20.48

£17.07 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 Vaillant 0020176335 is a reducing nipple used within the manufacturer's pump unit assemblies. It forms part of the pipework connection on the VPM 15 D and VPM 30 D pump units, stepping between differing connection sizes within the assembly. It is a service component intended for fitment during repair or overhaul of the pump unit.

Signs this part needs replacing

  • Visible weeping or damp staining around the nipple joint
  • Corrosion or pitting on the nipple body or threads
  • Damaged or crossed threads preventing a sound seal
  • Leaks appearing after the pump unit has been dismantled and reassembled
  • Scale or debris build-up restricting flow through the reduced connection

Before you order

  • Confirm your appliance model against the fit list above
  • Check the part number marked on the existing component where visible
  • Verify whether the pump unit or appliance variant matches the listed models
  • Inspect the mating connections for thread damage before fitting

Not sure which part?

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