Glow-Worm 20014169 Bypass | Genuine Replacement Spare Part
- SKU
- EDDGLOWWORM111
Our Expert's Opinion
A manufacturer-approved bypass valve that maintains correct water movement to safeguard boiler performance."Glow-Worm 20014169 Bypass
The 20014169 bypass is manufactured to precise OEM specifications for hydraulic performance, dimensional accuracy, and material resilience. This ensures that the valve opens and closes at the correct pressure differentials, providing dependable internal circulation without introducing noise, cavitation, or flow instability. Bypass valves are essential in modern boilers because they balance the internal and external flow paths — without a functioning bypass, a boiler may experience pressure peaks, pump strain, frequent cycling, uneven heating distribution, or nuisance safety lockouts due to perceived high pressure.
Over time, bypass valves can become partially blocked by sludge, limescale or debris transported in the water circuit, or they can seize or wear due to repeated thermal and mechanical stress. A malfunctioning bypass can lead to symptoms such as unusual noises from the hydraulic assembly, rapid pressure fluctuations, reduced heat delivery to radiators, or increased cycle frequency that shortens component life and increases energy use. Replacing a worn or unreliable bypass with this genuine OEM component restores balanced water flow, improves pump efficiency, and helps maintain stable system pressure under varying load conditions. Because this part plays a key role in safe hydraulic performance, installation should always be carried out by a qualified heating engineer who can ensure correct integration with the boiler’s internal plumbing and compliance with safety and performance standards.
Glow-Worm provide a 1 year warranty on all spare parts. Electrical Deals Direct now sells a wide range of spare parts. If you cannot see the item you require on our website, please call 01934 253600 or email [email protected] for more information.
| MPN | 20014169 |
|---|---|
| Product Code | EDDGLOWWORM111 |
| Part Origin | Genuine |
| Part or Accessory? | Part |
| Brand | Glow-Worm |
Delivery Information -
Standard delivery for all orders over £150 ex-VAT are free of charge.
If we can speed this up, we will, but you can also select Express Delivery when you check out and get your purchase more quickly (usually the next working day, subject to a 1pm cut-off): there is an extra charge for this ranging from £5 to £29.99 depending on the products you are buying.
We partner with several of the best UK carriers (such as TNT, Royal Mail, DPD etc) depending on the type of product and the warehouse it is coming from, and also with some pallet companies for larger items. All of these operate during normal Monday – Friday working hours, and we expect all deliveries to arrive in 5 days. For more details checkout this page.
Gledhill Cylinders – Delivery Charge -
For all Gledhill Cylinders, a flat delivery charge of £33.00 (ex-VAT) applies, regardless of order value or delivery method. This will be added automatically at checkout.
Returns Information -
Having to return a product because it doesn’t fit, or is not what you wanted, is really annoying! To try and make sure this isn’t necessary we have lots of helpful advice on our site, and you should feel free to call our experts on the number above to check if you are in any doubt at all – we’re always happy to help.
But if you do, don’t worry, just contact us and we’ll get it sorted (note that for trade customers there may be a restocking fee). If you need it, we can usually arrange the carrier to pick it up.
For full details of our policy, check out the small print here.
Glow-Worm 20014169 Bypass
The 20014169 bypass is manufactured to precise OEM specifications for hydraulic performance, dimensional accuracy, and material resilience. This ensures that the valve opens and closes at the correct pressure differentials, providing dependable internal circulation without introducing noise, cavitation, or flow instability. Bypass valves are essential in modern boilers because they balance the internal and external flow paths — without a functioning bypass, a boiler may experience pressure peaks, pump strain, frequent cycling, uneven heating distribution, or nuisance safety lockouts due to perceived high pressure.
Over time, bypass valves can become partially blocked by sludge, limescale or debris transported in the water circuit, or they can seize or wear due to repeated thermal and mechanical stress. A malfunctioning bypass can lead to symptoms such as unusual noises from the hydraulic assembly, rapid pressure fluctuations, reduced heat delivery to radiators, or increased cycle frequency that shortens component life and increases energy use. Replacing a worn or unreliable bypass with this genuine OEM component restores balanced water flow, improves pump efficiency, and helps maintain stable system pressure under varying load conditions. Because this part plays a key role in safe hydraulic performance, installation should always be carried out by a qualified heating engineer who can ensure correct integration with the boiler’s internal plumbing and compliance with safety and performance standards.
Glow-Worm provide a 1 year warranty on all spare parts. Electrical Deals Direct now sells a wide range of spare parts. If you cannot see the item you require on our website, please call 01934 253600 or email [email protected] for more information.
| MPN | 20014169 |
|---|---|
| Product Code | EDDGLOWWORM111 |
| Part Origin | Genuine |
| Part or Accessory? | Part |
| Brand | Glow-Worm |
Delivery Information -
Standard delivery for all orders over £150 ex-VAT are free of charge.
If we can speed this up, we will, but you can also select Express Delivery when you check out and get your purchase more quickly (usually the next working day, subject to a 1pm cut-off): there is an extra charge for this ranging from £5 to £29.99 depending on the products you are buying.
We partner with several of the best UK carriers (such as TNT, Royal Mail, DPD etc) depending on the type of product and the warehouse it is coming from, and also with some pallet companies for larger items. All of these operate during normal Monday – Friday working hours, and we expect all deliveries to arrive in 5 days. For more details checkout this page.
Gledhill Cylinders – Delivery Charge -
For all Gledhill Cylinders, a flat delivery charge of £33.00 (ex-VAT) applies, regardless of order value or delivery method. This will be added automatically at checkout.
Returns Information -
Having to return a product because it doesn’t fit, or is not what you wanted, is really annoying! To try and make sure this isn’t necessary we have lots of helpful advice on our site, and you should feel free to call our experts on the number above to check if you are in any doubt at all – we’re always happy to help.
But if you do, don’t worry, just contact us and we’ll get it sorted (note that for trade customers there may be a restocking fee). If you need it, we can usually arrange the carrier to pick it up.
For full details of our policy, check out the small print here.
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