Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
Stuart Pressurisation Unit SPU 230 Mini

SPECIAL OFFERS

Stuart Pressurisation Unit SPU 230 Mini

Stuart SPU 230 Mini pressurisation unit for maintaining pressure in sealed heating systems.

Manufacturer part no.
46720
Showing prices

£671.04

£559.20 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 Stuart SPU 230 Mini is a pressurisation unit from Stuart Turner. It is designed to hold and maintain pressure within a sealed heating system, topping up the system water as required so that the boiler and the wider circuit continue to operate within their intended pressure range.

Signs this part needs replacing

  • System pressure falls repeatedly and needs manual top-ups between services
  • Water is visible around the unit or on the floor beneath it
  • The unit runs continuously or cycles noticeably more often than it used to
  • The unit fails to raise system pressure when the boiler calls for water
  • Unusual noise or vibration from the pump or motor during operation

Before you order

  • Confirm the model on the existing unit matches SPU 230 Mini before ordering
  • Check the system volume and required pressure range against the unit's capability, as the Mini is a compact model
  • Inspect the surrounding pipework and connections for leaks that could be mistaken for a unit fault
  • Verify the electrical supply and controls arrangement at the installation point before fitting

Not sure which part?

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

Stuart SPU 230 Mini Pressurisation Unit 46720