Viessmann 7837892 Safety Valve | Genuine Replacement Part
- SKU
- EDDVIESSMANNSPARE04
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The Viessmann 7837892 is a genuine safety valve designed to protect the boiler and heating system from excessive pressure. As a critical safety component, it automatically releases water when system pressure exceeds a predefined limit, preventing potential damage to internal components and ensuring safe operation at all times.
In a sealed central heating system, pressure naturally increases as water heats and expands. While the expansion vessel absorbs most of this increase, faults such as vessel failure, overfilling, or system blockages can cause pressure to rise beyond safe operating levels. The safety valve acts as a final safeguard, opening at a set pressure threshold to discharge water and reduce system pressure immediately.
Manufactured to precise OEM specifications, the 7837892 valve is engineered for consistent and reliable operation under repeated pressure cycles. It is calibrated to open at the correct pressure point, ensuring compliance with boiler safety standards while protecting the appliance from overpressure conditions.
Over time, safety valves can become worn, blocked with debris, or fail to reseal correctly after activation. This can result in continuous dripping, pressure loss, or inability to operate when required. Replacing a faulty valve is essential to maintain both system safety and performance.
Key Features:
Part Number: 7837892
Type: Safety valve/pressure relief valve
Function: Releases excess pressure to protect the boiler and system
Genuine Viessmann spare part – manufactured to OEM standards
Factory-calibrated for accurate pressure release
Essential safety component for sealed heating systems
Must be fitted by a qualified Gas Safe registered engineer
Compatible Boilers Include:
Used across a range of Viessmann boiler models, including:
Viessmann Vitodens series (model dependent)
Other Viessmann sealed system boilers
Viessmann 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 | 7837892 |
|---|---|
| Product Code | EDDVIESSMANNSPARE04 |
| Compatible With: Product Code (SKU) | Viessmann Vitodens 100-W WB1C/B1HA/B1KA 19/26/30/35kW; Vitodens 200-W B2HB/B2KB Combi & System |
| Part Origin | Genuine |
| Part or Accessory? | Part |
| Brand | Viessmann |
| Full Weight (kG) | .5 |
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.
Viessmann 7837892 Safety Valve | Genuine Replacement Part
The Viessmann 7837892 is a genuine safety valve designed to protect the boiler and heating system from excessive pressure. As a critical safety component, it automatically releases water when system pressure exceeds a predefined limit, preventing potential damage to internal components and ensuring safe operation at all times.
In a sealed central heating system, pressure naturally increases as water heats and expands. While the expansion vessel absorbs most of this increase, faults such as vessel failure, overfilling, or system blockages can cause pressure to rise beyond safe operating levels. The safety valve acts as a final safeguard, opening at a set pressure threshold to discharge water and reduce system pressure immediately.
Manufactured to precise OEM specifications, the 7837892 valve is engineered for consistent and reliable operation under repeated pressure cycles. It is calibrated to open at the correct pressure point, ensuring compliance with boiler safety standards while protecting the appliance from overpressure conditions.
Over time, safety valves can become worn, blocked with debris, or fail to reseal correctly after activation. This can result in continuous dripping, pressure loss, or inability to operate when required. Replacing a faulty valve is essential to maintain both system safety and performance.
Key Features:
Part Number: 7837892
Type: Safety valve/pressure relief valve
Function: Releases excess pressure to protect the boiler and system
Genuine Viessmann spare part – manufactured to OEM standards
Factory-calibrated for accurate pressure release
Essential safety component for sealed heating systems
Must be fitted by a qualified Gas Safe registered engineer
Compatible Boilers Include:
Used across a range of Viessmann boiler models, including:
Viessmann Vitodens series (model dependent)
Other Viessmann sealed system boilers
Viessmann 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 | 7837892 |
|---|---|
| Product Code | EDDVIESSMANNSPARE04 |
| Compatible With: Product Code (SKU) | Viessmann Vitodens 100-W WB1C/B1HA/B1KA 19/26/30/35kW; Vitodens 200-W B2HB/B2KB Combi & System |
| Part Origin | Genuine |
| Part or Accessory? | Part |
| Brand | Viessmann |
| Full Weight (kG) | .5 |
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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