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Grant Non Return Check Valve 22mm MPCBS26

Grant

Grant Non Return Check Valve 22mm MPCBS26

22mm non-return check valve for Grant oil-fired combi boilers, preventing backflow in the heating circuit.

At a glance

  • Also known as 2160422
Manufacturer part no.
MPCBS26
Showing prices

£28.49

£23.74 ex. VAT · VAT at 20%

Available to order · 1 working day
Available to order · 1 working day
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 Grant MPCBS26 is a 22mm non-return check valve used on Grant oil-fired combi boilers. It sits in the heating circuit and permits flow in one direction only, closing off backflow when the pump stops. It is fitted across the Grant Combi and Vortex Pro combi ranges.

Signs this part needs replacing

  • Water passes back through the circuit once the pump stops
  • Unwanted gravity circulation, with heat reaching radiators or the hot water store when it should not
  • Boiler short cycling or overheating caused by incorrect flow direction
  • Knocking or banging in the pipework as flow reverses
  • Weeping or visible leakage from the valve body

Before you order

  • Confirm the pipework at the valve position is 22mm
  • Check your boiler model against the fit list above
  • Note the flow direction arrow on the existing valve before removal
  • Inspect the circuit for scale or debris that may have caused the valve to fail

Not sure which part?

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