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Ideal Pressure Relief Valve Central Heating 173203

Ideal

Ideal Pressure Relief Valve Central Heating 173203

At a glance

  • Part type: Pressure relief valve
  • Also known as 1179342, N2081-D
Manufacturer part no.
173203
GC number
H07-717
Showing prices

£30.95

£25.79 ex. VAT · VAT at 20%

Available to order · 1-2 working days
Available to order · 1-2 working days
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.

Same-day dispatch

Ordered by 4pm Mon–Fri, 10:30am Sat.

30-day returns

Unused, in original packaging.

What it is

The Ideal 173203 is a pressure relief valve for the central heating circuit of Ideal gas boilers and cylinders. It is manufactured by Ideal and belongs to the Excel HE and iStore HE appliance families. The valve opens and discharges water when sealed system pressure rises above its set limit, protecting the boiler, cylinder and connected pipework from over-pressurisation.

Signs this part needs replacing

  • Water discharging continuously from the pressure relief discharge pipe
  • System pressure gauge sitting high with no obvious cause
  • Boiler or cylinder losing pressure repeatedly after topping up
  • Dripping or weeping from the valve outlet when the system is cold
  • Scale or system debris holding the valve seat open

Before you order

  • Match the GC number on the appliance data badge against the compatibility list before ordering
  • Check the model name and GC number together, as the Excel HE and iStore HE ranges use different GC prefixes

Not sure which part?

Tell the parts assistant what it's going into — the appliance make and model, or the GC number off the data badge — and it will check this part is on the fit list.