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Biasi Safety Valve 3 Bar BI1441101

Biasi

Biasi Safety Valve 3 Bar BI1441101

3 bar safety valve for Biasi Activ, Advance and Inovia combi boilers, part number BI1441101.

At a glance

  • Also known as 1651658, N1074-A
Manufacturer part no.
BI1441101
GC number
J18-863
Showing prices

£22.88

£19.07 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 Biasi BI1441101 is a 3 bar safety valve used on Biasi gas-fired combi boilers. It opens at 3 bar to relieve excess pressure from the heating circuit, protecting the appliance and system components from over-pressurisation. This part is designated for appliances from serial number 023480712.

Signs this part needs replacing

  • Water discharging continuously from the pressure relief pipework
  • Boiler losing pressure repeatedly, requiring frequent top-ups
  • Valve weeping or dripping when the system is below 3 bar
  • Scale or debris holding the valve seat open so it will not reseat
  • System pressure rising above 3 bar during heating cycles

Before you order

  • Check the boiler's serial number against the designation for this part, as an earlier serial range uses a different valve
  • Confirm the exact model name from the boiler data badge, including whether it is the standard, PLUS, ERP or LPG variant
  • Check the expansion vessel charge and system pressure, as a failed vessel can cause the same symptoms as a faulty safety valve

Not sure which part?

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

Biasi BI1441101 3 Bar Safety Valve