Grant
Grant 3 Bar Pressure Relief Valve 2 Port MPCBS123
3 bar pressure relief valve with two ports, manufactured by Grant for Vortex ECO condensing oil boilers.
At a glance
- Also known as 3206728
£36.28
£30.23 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 Grant MPCBS123 is a 3 bar pressure relief valve with a two-port connection, manufactured by Grant for use on Vortex ECO condensing oil boilers. It opens at its set pressure to discharge excess system pressure and protect the boiler and associated components from over-pressurisation. It is fitted across both external and utility variants of the Vortex ECO range.
Signs this part needs replacing
- Water discharging from the pressure relief discharge pipe when the system is cold and at normal operating pressure
- The valve weeping or dripping continuously from the outlet
- System pressure repeatedly dropping and needing topping up
- Scale, sludge or debris preventing the valve from reseating after it has lifted
- Visible corrosion or damage around the valve body or seating face
Before you order
- Confirm the boiler model and variant against the fit list above
- Check the existing valve is rated at 3 bar and has a two-port connection
- Verify the system pressure gauge reading before diagnosing the valve, as expansion vessel faults can produce similar symptoms
- Check the discharge pipework is clear and correctly terminated before fitting
Compliance
| Alternative numbers | 3206728 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| GRANT GRANT: VORTEX ECO : EXTERNAL 15-21 CONDENSING | — | — | — | |
| GRANT GRANT: VORTEX ECO : EXTERNAL 21-26 CONDENSING | — | — | — | |
| GRANT GRANT: VORTEX ECO : EXTERNAL 26-35 CONDENSING | — | — | — | |
| GRANT GRANT: VORTEX ECO : UTILITY 15-21 CONDENSING | — | — | — | |
| GRANT GRANT: VORTEX ECO : UTILITY 21-26 CONDENSING | — | — | — | |
| GRANT GRANT: VORTEX ECO : UTILITY 26-35 CONDENSING | — | — | — | |
| GRANT VORTEX ECO CONDENSING EXTERNAL 15/21 BOILER | — | — | — | |
| GRANT VORTEX ECO CONDENSING EXTERNAL 21/26 BOILER | — | — | — | |
| GRANT VORTEX ECO CONDENSING EXTERNAL 26/35 BOILER | — | — | — | |
| GRANT VORTEX ECO CONDENSING UTILITY 15/21 BOILER | — | — | — |
Showing 10 of 12 compatible appliances.
Documents & drawings
Everything we hold for this part. Where a document exists but we don't hold it, the technical team will source it from the manufacturer — usually the same working day.
GRANT appliance manual — VORTEX ECO CONDENSING EXTERNAL 15/21 BOILER, VORTEX ECO CONDENSING EXTERNAL 21/26 BOILER, VORTEX ECO CONDENSING EXTERNAL 26/35 BOILER
manualmanualGRANT appliance manual — VORTEX ECO CONDENSING UTILITY 15/21 BOILER, VORTEX ECO CONDENSING UTILITY 21/26 BOILER, VORTEX ECO CONDENSING UTILITY 26/35 BOILER
manualNo technical questions yet for this part.
Not sure which part?
Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.