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Glow-worm Water Flow Regulator 0020038685

Glow-worm

Glow-worm Water Flow Regulator 0020038685

Water flow regulator rated at 10 litres per minute for Glow-worm Betacom 24 and Betacom 30 gas boilers.

At a glance

  • Appliance family: Betacom
  • Also known as 1338415
Manufacturer part no.
0020038685
Showing prices

£17.48

£14.57 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 Glow-worm 0020038685 is a water flow regulator rated at 10 litres per minute. It is fitted to Glow-worm Betacom gas boilers, where it limits the flow of water through the appliance to a nominal 10 litres per minute. The component sits within the boiler's water circuit and helps hold the flow rate steady during draw-off.

Signs this part needs replacing

  • Hot water flow rate at the tap is noticeably above or below the rated 10 litres per minute.
  • Hot water temperature fluctuates or is difficult to control.
  • Flow rate is erratic, surging or dropping during draw-off.
  • The regulator is blocked, scaled or visibly damaged.

Before you order

  • Confirm the boiler model and, where shown, the GC number against the fitment list above.
  • Check the part number on the existing regulator or in the manufacturer's parts list for your appliance.
  • Confirm the fault lies with the regulator rather than scale, debris or a restriction elsewhere in the water circuit.

Not sure which part?

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