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Biasi Safety Valve 3 Bar BI1621101

Biasi

Biasi Safety Valve 3 Bar BI1621101

Biasi 3 bar safety valve, part number BI1621101, for Basica COND and Rinnova Adaptive appliances.

At a glance

  • Also known as 1651782
Manufacturer part no.
BI1621101
Showing prices

£20.89

£17.41 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 BI1621101 is a 3 bar safety valve used in Biasi Basica COND and Rinnova Adaptive condensing appliances. It relieves excess pressure from the heating circuit when system pressure reaches its 3 bar set point. The valve is supplied as a single component for service and repair work.

Signs this part needs replacing

  • Water continually weeping or dripping from the valve discharge pipe when the system is below its set pressure
  • System pressure rising above 3 bar with no drop on the pressure gauge
  • Discharge pipe permanently wet or showing scale and corrosion staining
  • System pressure failing to hold and needing frequent topping up
  • Valve failing to reseat after a pressure relief event

Before you order

  • Confirm your appliance model against the fit list above before ordering
  • Check the pressure rating marked on the existing valve matches 3 bar
  • Isolate the appliance, drain down and depressurise the system before removal
  • Inspect the valve seat and discharge pipework for debris or scale while the system is open

Not sure which part?

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