Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
Biasi Safety Valve 3 Bar BI1181100

Biasi

Biasi Safety Valve 3 Bar BI1181100

3 bar safety valve for Biasi gas boilers, suitable for Activ A, RIVA, Garda and Parva models up to April 2011.

At a glance

  • Also known as SAFETY-VALVE-BAR, 1650775, N2013-C
Manufacturer part no.
BI1181100
GC number
H50-189
Showing prices

£28.79

£23.99 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 3 bar safety valve (part number BI1181100) is a pressure relief component for Biasi gas boilers. It opens at 3 bar to discharge excess pressure from the heating circuit, protecting the appliance and system components. This version is specified for Biasi models manufactured up to April 2011.

Signs this part needs replacing

  • Water weeping or dripping from the discharge pipe when the system is below 3 bar
  • Boiler pressure repeatedly dropping and needing topping up
  • System pressure rising above 3 bar without discharge
  • Valve failing to reseat after operating, causing a continuous drip
  • Visible scale or corrosion around the valve outlet

Before you order

  • Check your boiler model and GC number against the fitment list
  • Confirm the appliance was manufactured up to April 2011
  • Verify the existing valve is rated at 3 bar
  • Check the part number BI1181100 matches the valve being replaced

Not sure which part?

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