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Broag Diaphragm Natural Gas H S100082

Broag

Broag Diaphragm Natural Gas H S100082

Natural gas diaphragm from Broag, listed as a Q115 venturi restrictor for Broag commercial boilers.

Manufacturer part no.
S100082
Showing prices

£73.87

£61.56 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 Broag Diaphragm Natural Gas H is a natural gas diaphragm component used in Broag commercial boiler applications. The supplier listing describes this item as a Q115 venturi restrictor.

Signs this part needs replacing

  • Unstable or irregular burner flame on the fitted appliance.
  • Combustion readings that drift outside the expected range for the boiler.
  • Poor or delayed ignition on a boiler that previously lit reliably.
  • Whistling or unusual noise from the gas/air path at the venturi.

Before you order

  • Confirm the appliance model against the fit line above before ordering.
  • Check the existing diaphragm or restrictor marking on the boiler to match the Q115 reference.
  • Verify the appliance is running on natural gas, as this component is specified for natural gas.
  • Isolate the gas supply and carry out soundness checks after any work on gas-carrying components.

Not sure which part?

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