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Altecnic Discal Automatic Air Separator 3/4F 551905

Altecnic

Altecnic Discal Automatic Air Separator 3/4F 551905

Automatic air separator from Altecnic with a 3/4-inch female connection, used to remove trapped air from boiler and heating systems.

Manufacturer part no.
551905
Showing prices

£486.41

£405.34 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 Altecnic Discal Automatic Air Separator 3/4F is an automatic air separation device for boiler and heating systems. It removes entrained air and microbubbles from the circulating water, helping to maintain consistent flow and reduce noise and corrosion within the system. The unit connects via a 3/4-inch female thread.

Signs this part needs replacing

  • Persistent gurgling, whistling or rushing water noise from the pipework
  • Radiators that need bleeding repeatedly, or cold spots at the top of radiators
  • Pump cavitation or erratic circulation despite correct pump settings
  • Visible weeping, corrosion or scale build-up around the separator body or connections
  • System pressure that fluctuates or fails to hold steady during operation

Before you order

  • Confirm the connection size and thread type required match the 3/4-inch female fitting on this unit
  • Check the installation position allows access for servicing and that the separator can be fitted at the correct point in the system
  • Verify the unit is suitable for the system type and operating conditions before ordering
  • Have the appliance or system model details to hand when checking compatibility

Not sure which part?

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