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Sime Pipe Connection Gas Valve Mixer 6277403

Sime

Sime Pipe Connection Gas Valve Mixer 6277403

Pipe connection gas valve mixer for Sime Format and Dewy Zip BF boilers, manufacturer part 6277403.

At a glance

  • Part type: pipe connection, gas valve mixer
  • Also known as 2042560
  • Gas-carrying components must be fitted and commissioned by a Gas Safe registered engineer.
Manufacturer part no.
6277403
Showing prices

£14.68

£12.23 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 pipe connection gas valve mixer is a pipework component that links the gas valve to the mixing section on Sime Format and Dewy Zip BF boilers. It forms part of the gas train, carrying gas through the appliance to the burner assembly. It is supplied as a single pipe assembly under manufacturer part number 6277403.

Signs this part needs replacing

  • A smell of gas around the gas valve or mixer connection area.
  • Visible corrosion, pitting or sooting on the pipe connection.
  • Gas escaping from the joint, shown by a failed tightness test or leak detection fluid bubbling.
  • The boiler failing to light or locking out because gas is not reaching the burner correctly.
  • Dampness or staining at the pipe joint indicating a weep.

Before you order

  • Confirm the boiler model against the fitment list above, as the same pipe connection is not shared across all Sime appliances.
  • Check the part number stamped or marked on the existing component against 6277403 before ordering.
  • Isolate the gas supply and confirm the appliance is safe before any work begins.
  • Gas-carrying components must be fitted and commissioned by a Gas Safe registered engineer.

Not sure which part?

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