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Grundfos Magna1 40-120F Variable Speed Circulator 99221305

Grundfos

Grundfos Magna1 40-120F Variable Speed Circulator 99221305

Variable speed single head circulator for Grundfos Magna1 systems, 240V single phase 50Hz with PN6/10 connection.

At a glance

  • Also known as 2520877
Manufacturer part no.
99221305
Showing prices

£3,191.57

£2,659.64 ex. VAT · VAT at 20%

Available to order · 1 working day
Available to order · 1 working day
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 Grundfos MAGNA1 40-120F is a single head, variable speed circulator pump designed for circulating heating and domestic hot water in closed systems. It is an 'A' rated, EuP ready unit operating on a 240V single phase 50Hz supply. Speed is modulated electronically to match demand rather than running at a fixed output.

Signs this part needs replacing

  • The pump runs but circulates poorly, leaving radiators or hot water outlets slow to heat
  • Abnormal noise, humming or vibration from the pump body during operation
  • The pump fails to start, or stops and restarts intermittently
  • Water weeping from the pump housing, flange joints or seal area
  • The pump no longer responds to speed or control settings

Before you order

  • Confirm the existing pump carries the same MAGNA1 40-120F designation and part number 99221305
  • Check the supply available on site is 240V single phase 50Hz
  • Verify the system pressure class and connection arrangement match PN6/10
  • Check the port-to-port and flange dimensions against the installed pipework before ordering

Not sure which part?

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