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Glow-worm Non Return Valve 0020097322

Glow-worm

Glow-worm Non Return Valve 0020097322

Non-return valve 0020097322 for Glow-worm Ultracom 2 combi boilers, preventing reverse flow in the water circuit.

At a glance

  • Part type: non-return valve
  • Also known as 1340374
Manufacturer part no.
0020097322
Showing prices

£10.34

£8.62 ex. VAT · VAT at 20%

Available to order · 7 working days
Available to order · 7 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 Glow-worm 0020097322 is a non-return valve used in the water circuit of Ultracom 2 combi boilers. It allows flow in one direction only, preventing backflow and reverse circulation within the appliance. It is listed under isolation valves in the Glow-worm spares range.

Signs this part needs replacing

  • Water flowing in the wrong direction through the circuit, causing reverse circulation
  • Heating water migrating into the domestic hot water side, or the reverse
  • Radiators warming when only hot water is drawn, or hot water running warm when only heating is on
  • Persistent flow noise or vibration around the valve position
  • Visible scale, debris or damage at the valve body or its seating

Before you order

  • Confirm your boiler model against the fitment list above before ordering
  • Check the part number on the existing valve or in the manufacturer's parts list for your appliance
  • Isolate the water and gas supplies and drain down as required before removal
  • Note the valve orientation and flow direction before dismantling so it can be refitted correctly

Not sure which part?

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