Glow-worm
Glow-worm Pressure Relief Valve 3 Bar 0020275016
3 bar pressure relief valve for Glow-worm Compact and Micracom gas boilers, part number 0020275016.
At a glance
- Also known as 1388940
£15.76
£13.13 ex. VAT · VAT at 20%
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
The Glow-worm 0020275016 is a 3 bar pressure relief valve used in Glow-worm gas boilers. It opens at its set pressure to discharge excess water from the heating circuit, protecting the appliance and system components from over-pressurisation. It is listed under pressure relief and safety valves in the gas boiler spares range.
Signs this part needs replacing
- Water continually dripping or running from the pressure relief discharge pipe
- System pressure dropping repeatedly, requiring frequent top-ups
- Boiler pressure rising above normal during heating and not settling
- Discharge pipe permanently wet or stained with scale and corrosion deposits
- Valve failing to reseat after it has lifted, or weeping at the valve body
Before you order
- Confirm your boiler model against the fitment list above before ordering
- Check the existing valve is rated at 3 bar, as the set pressure must match the appliance requirement
- Inspect the discharge pipework and expansion vessel, as a faulty expansion vessel can cause the valve to lift repeatedly
- Isolate the appliance, drain down and depressurise the system before fitting
Compliance
| Alternative numbers | 1388940 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| GLOWWORM COMPACT 24C | — | — | — | |
| GLOWWORM COMPACT 24C P | — | — | — | |
| GLOWWORM COMPACT 28C | — | — | — | |
| GLOWWORM COMPACT 28C P | — | — | — | |
| GLOWWORM MICRACOM 24C | 47-019-58 | 47-019-58 | — | — |
| GLOWWORM MICRACOM 28C | 47-019-59 | 47-019-59 | — | — |
Documents & drawings
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No documents held for this part. The technical team will source them from the manufacturer — usually the same working day.
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