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Schneider Electric MBX4651 2 inch 3 port LPHW valve - Cv 32

TAC Schneider

Schneider Electric MBX4651 2 inch 3 port LPHW valve - Cv 32

Schneider Electric (Satchwell/TAC) MBX4651 is a 2 inch, 3 port low pressure hot water valve with a flow coefficient (Cv) of 32, for heating plant control.

At a glance

  • Also known as 4460318
Manufacturer part no.
MBX4651
Showing prices

£796.33

£663.61 ex. VAT · VAT at 20%

Available to order · 7 working days
Available to order · 7 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 MBX4651 is a Schneider Electric 3 port low pressure hot water (LPHW) valve, marketed under the Satchwell and TAC brand names used by Schneider for its heating control ranges. It is a 2 inch valve with a flow coefficient (Cv) of 32, used with a compatible actuator to control heating water flow at the plant.

Signs this part needs replacing

  • Valve stuck in one position, or not responding to the actuator
  • Leaking at the valve body or port connections
  • Inconsistent mixing or diverting of heating water, causing temperature swings
  • Unusual noise (knocking or whistling) from the valve under flow

Before you order

  • Match the part number printed on the existing valve before ordering
  • Confirm the actuator fitted is compatible with this valve body
  • Isolate and drain the heating circuit before removing the old valve
  • This is a plant-level component; work should be carried out by a competent heating engineer

Not sure which part?

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