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Altecnic 3 Port Valve 3.9 Kv 1/2 644346

Altecnic

Altecnic 3 Port Valve 3.9 Kv 1/2 644346

Altecnic 3 port valve with a Kv of 3.9 and 1/2 connections, used in boiler and heating circuits.

Manufacturer part no.
644346
Showing prices

£620.64

£517.20 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 3 Port Valve With 3.9 Kv 1/2 is a three-port valve body intended for use in heating and hot water circuits, where it diverts flow between two outlet paths. It is listed by Altecnic within the Altecnic Ball Valves model range and is classified as boiler-related equipment. The valve carries a Kv value of 3.9 and 1/2 connections.

Signs this part needs replacing

  • Heating circulates when only hot water is called for, or hot water fails to reach temperature.
  • Radiators warm up with the programmer set to hot water only, or the valve fails to move between positions.
  • The valve head or spindle no longer responds when the programmer changes between heating and hot water.
  • Water weeping from the valve body, spindle or connection points.
  • The actuator runs but the valve does not change the flow path.

Before you order

  • Confirm the circuit requires a three-port valve with a Kv of 3.9 for the duty.
  • Check that the existing connections match the 1/2 size of this valve.
  • Confirm the valve body and head arrangement suits the existing installation and control wiring before removal.

Not sure which part?

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