TAC Schneider
Schneider Electric 3-port rotary valve, 1-1/4in BSP, MB1552
Schneider Electric (TAC) MB1552 3-port rotary shoe valve, 1-1/4in BSP connection, Kv 12.0, used as a gas boiler diverter/mixing valve.
At a glance
- Also known as 4460324
- Isolate and drain the system before removal; Gas Safe registered engineer required for gas appliance work
£751.88
£626.57 ex. VAT · VAT at 20%
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
The MB1552 is a 3-port rotary shoe valve manufactured by Schneider Electric under the TAC brand. It is fitted in heating and hot water systems, typically as a gas boiler diverter valve, and has a 1-1/4in BSP connection with a Kv (flow coefficient) rating of 12.0.
Signs this part needs replacing
- Valve fails to divert flow correctly between heating and hot water circuits
- Stuck or seized rotary shoe mechanism
- Water leaking from the valve body or spindle seal
- Boiler loses temperature or pressure control linked to the valve
- Actuator turns but the valve doesn't move, indicating internal wear
Before you order
- Match the part number MB1552 printed on your existing valve
- Confirm your valve body size (1-1/4in BSP) before ordering
- Check whether the matching actuator also needs replacing
- Isolate and drain the system before removal; Gas Safe registered engineer required for gas appliance work
Compliance
| Alternative numbers | 4460324 |
|---|
No fitment data held for this part.
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