Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
Altecnic Discal Brass Automatic Air Separator 1

Altecnic

Altecnic Discal Brass Automatic Air Separator 1

Altecnic Discal brass automatic air separator, size 1, for removing trapped air from heating systems.

Manufacturer part no.
551706
Showing prices

£379.36

£316.13 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 Discal Brass Automatic Air Separator 1 is an air separation component manufactured by Altecnic, supplied under the Discal product name. It is used in heating installations to separate entrained air from system water, allowing the air to be released rather than circulating through the circuit. The body is brass, and the unit is listed under the Altecnic air separation model range.

Signs this part needs replacing

  • Persistent air in the system after repeated venting, with radiators requiring frequent bleeding
  • Noisy circulation, gurgling or rumbling through the pipework and heat emitters
  • Cold spots at the top of radiators or uneven heat distribution across the system
  • Pump noise or reduced flow indicating air is not being separated and removed
  • Visible weeping, corrosion or staining around the separator body or its connections

Before you order

  • Confirm the separator size required against the existing installation, as the size designation forms part of the product reference
  • Check that the system layout and connection arrangement match the Altecnic air separation configuration
  • Verify the part reference 551706 against any documentation held for the appliance or system
  • Confirm whether the system is drained and isolated before carrying out replacement work

Not sure which part?

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