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Ideal Isolating Valve 3/4 Inch CH 172542

Ideal

Ideal Isolating Valve 3/4 Inch CH 172542

Ideal 172542 3/4 inch CH isolating valve for Europa and Mini C32 boiler models, used to isolate the central heating circuit for servicing.

At a glance

  • Part type: Isolating valve
  • Also known as 1178882
Manufacturer part no.
172542
GC number
E83-136
Showing prices

£43.82

£36.52 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 Ideal 172542 is a 3/4 inch central heating isolating valve supplied as a spare for Ideal domestic boilers. It sits on the heating circuit pipework and allows the water flow to be shut off at that point, so the appliance or a section of the system can be drained and worked on without emptying the whole installation. It is a serviceable component rather than a gas-carrying part.

Signs this part needs replacing

  • Water weeping or a visible drip from the valve body or spindle
  • The valve will not turn, or turns without shutting off the flow
  • Scale or corrosion around the connection, with staining on nearby pipework
  • Difficulty isolating the heating circuit during a service or drain-down
  • A damp smell or minor water loss traced to the valve area

Before you order

  • Confirm the GC number on the appliance data badge matches the numbers listed in the compatibility table
  • Check the valve size and thread against the pipework on your model before fitting
  • Have a suitable sealing washer or jointing material to hand, as connections disturbed during replacement may need resealing

Not sure which part?

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