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Biasi Nut 22mm Union 3/4 BI1004102

Biasi

Biasi Nut 22mm Union 3/4 BI1004102

Biasi 22mm union nut with 3/4 inch thread, part number BI1004102, for use on Garda, Prisma and RIVA gas boilers.

At a glance

  • Also known as 1650052
Manufacturer part no.
BI1004102
GC number
E01-170
Showing prices

£3.41

£2.84 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 Biasi BI1004102 is a 22mm union nut with a 3/4 inch thread, used to join pipework at a union connection on Biasi gas boilers. It forms part of the boiler's pipework fittings and is listed under screws, nuts, bolts and clips. It is manufactured by Biasi for the Garda, Prisma and RIVA appliance families.

Signs this part needs replacing

  • Visible weeping or dripping at the union joint
  • Water staining, scale or corrosion around the nut and thread
  • Rounded or damaged flats on the nut, making it difficult to tighten or remove
  • Cross-threaded or stripped threads preventing a sound seal
  • The nut will not pull up tight against the mating face

Before you order

  • Confirm your boiler model against the fit list above
  • Check the existing nut is 22mm with a 3/4 inch thread
  • Inspect the mating face and olive or seal for damage before refitting
  • Verify the part number BI1004102 matches the component being replaced

Not sure which part?

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