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Altecnic Calflow Plus 15mm 4 L/min Grey AI-81121504

Altecnic

Altecnic Calflow Plus 15mm 4 L/min Grey AI-81121504

Altecnic Calflow Plus flow regulator in grey, sized for 15mm pipework, regulating flow to 4 litres per minute.

Manufacturer part no.
AI-81121504
Showing prices

£30.74

£25.62 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 Calflow Plus is a flow regulator manufactured by Altecnic, used in boiler and heating systems where a controlled flow rate is required through the pipework. It is sized for 15mm connections and is set to regulate flow at 4 litres per minute. This version is supplied with a grey body.

Signs this part needs replacing

  • The draw-off rate at outlets no longer matches the set 4 litres per minute figure.
  • Flow rate becomes erratic or drops away as the system runs.
  • Visible scale, debris or corrosion around the regulator body or inlet.
  • Water weeping from the body or at the pipe connections.
  • Persistent noise or vibration from the regulator under normal flow.

Before you order

  • Confirm the pipework is 15mm at the point of fitment.
  • Confirm the required regulated flow rate matches 4 litres per minute.
  • Check the existing regulator colour variant to match the grey unit.
  • Verify the model reference on the existing part against ALTECNIC - flow regulation.

Not sure which part?

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