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Alpha Filling Loop Assembly 3.023115

Alpha

Alpha Filling Loop Assembly 3.023115

Filling loop assembly for Alpha InTEC 2 and E-TEC boilers, connecting the mains cold water supply to the heating circuit.

At a glance

  • Also known as FILLING-LOOP-ASSEMBLY, 1258891
Manufacturer part no.
3.023115
Showing prices

£132.01

£110.01 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 Alpha filling loop assembly (part 3.023115) is a boiler component that connects the mains cold water supply to the heating circuit so the system can be pressurised. It is manufactured by Alpha for the InTEC 2 and E-TEC boiler families. The assembly sits within the boiler's isolation valve group.

Signs this part needs replacing

  • System pressure falls repeatedly and the boiler needs frequent topping up
  • Water weeping or dripping from the filling loop valves or connections
  • The filling loop valve handle is stiff, seized or will not close fully
  • Visible corrosion, scale or debris around the filling loop
  • Mains water continues to pass into the heating circuit when the loop is closed

Before you order

  • Confirm your boiler model and GC number against the fitment list above
  • Check that part number 3.023115 matches the component on your appliance
  • Establish whether the filling loop on your appliance is this assembly before ordering
  • Isolate the water and power supplies and depressurise the system before fitting

Not sure which part?

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