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Alpha CH Flow Isolating Valve 6.5644720

Alpha

Alpha CH Flow Isolating Valve 6.5644720

Alpha 3/4 inch central heating flow isolating valve for Alpha 240 and 280 series boilers.

At a glance

  • Also known as ALPHA6.5644720, 1251301
Manufacturer part no.
6.5644720
Showing prices

£86.35

£71.96 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 Alpha CH Flow Isolating Valve (3/4in) is a primary flow valve for Alpha 240 and 280 series gas boilers. It allows the central heating flow to be isolated for maintenance or repair. This valve has a 3/4 inch connection.

Signs this part needs replacing

  • Valve leaks water from the spindle or body
  • Valve is seized and cannot be turned
  • Valve fails to isolate the flow when closed
  • Visible corrosion or scale on the valve
  • Water dripping from the valve connections

Before you order

  • Check your boiler model against the fits list
  • Confirm the valve size is 3/4 inch
  • Verify whether the valve is for flow or return
  • Check the part number 6.5644720 matches your existing valve

Not sure which part?

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