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Altecnic Hygroscopic Air Vent 3/8 508031

Altecnic

Altecnic Hygroscopic Air Vent 3/8 508031

Altecnic hygroscopic air vent with a 3/8 connection, used with Altecnic air separation units to release trapped air.

Manufacturer part no.
508031
Showing prices

£11.48

£9.57 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 Hygroscopic Air Vent 3/8 is an Altecnic air release component intended for use with the Altecnic air separation range. It vents trapped air from boiler and heating systems, helping to prevent airlocks and poor circulation. The hygroscopic element closes the vent once air has been released, keeping the assembly sealed against water.

Signs this part needs replacing

  • The vent weeps or drips water while the system is running
  • Air keeps collecting in the system and repeated bleeding is needed
  • Gurgling or rushing noises from the air separation unit or pipework
  • Radiators or emitters remain cold at the top after bleeding
  • Scale or corrosion is visible around the vent body or cap

Before you order

  • Confirm the 3/8 thread matches the connection on the air separation unit
  • Check the vent is suited to your Altecnic air separation assembly
  • Plan for isolating or draining the system before removing the old vent
  • Check there is enough access to fit and tighten the new vent

Not sure which part?

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