Vaillant Turbotec Plus VMW ES 21 245 4 5 Safety Valve Ref. 178985
Stock · 3 units
Safety valve: reconditioned spare part that releases pressure when the circuit exceeds its setting. Useful if it drips or continuously expels water. Compatible with VMW 236/3-5, VMW 242/4-5, VMW 306/5-5 (ref. 178985). Includes a one-year warranty. Delivery time and cost are shown at checkout for the destination country.
VAT included
Consult via WhatsAppVaillant boilers compatible with reference 178985
Safety valve with reference 178985. Eight confirmed compatibilities: VMW 236/3-5 and VMW 242/4-5.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Vaillant VMW 236/3-5 | Atmoblock / Ecoblock (VMW compact wall-mounted mixed series) | Contrasted |
| Vaillant VMW 242/4-5 | Atmoblock / Ecoblock (VMW compact wall-mounted mixed series) | Contrasted |
| Vaillant VMW 306/5-5 | Atmoblock / Ecoblock (VMW compact wall-mounted mixed series) | Contrasted |
| Vaillant VMW 346/5-5 | Atmoblock / Ecoblock (VMW compact wall-mounted mixed series) | Contrasted |
| Vaillant VM 240/3-5 | VM series (wall-mounted heating only) | Contrasted |
| Vaillant VM 242/4-5 | VM series (wall-mounted heating only) | Contrasted |
| Vaillant VM 246/3-5 | VM series (wall-mounted heating only) | Contrasted |
| Vaillant VM 306/5-5 | VM series (wall-mounted heating only) | Contrasted |
Can't see your model or have questions? The printed reference takes precedence. How to check it · Send us a photo via WhatsApp.
How to check if ref. 178985 is the part for your boiler
What determines it is not the boiler model, but the reference printed on the part you already have installed.
- Find the reference printed on the installed part and check whether it matches the catalogue reference 178985. If it is not visible, do not identify the part from its shape alone.
- Check the full boiler model on its data plate and look for it in the model associations on this page.
- Compare the connections and physical body with the original part before installation.
- If anything is unclear, send us a photo of the marking via WhatsApp before placing your order.
Data sheet for the safety valve Vaillant 178985
- Catalogue reference
- 178985
- Brand
- Vaillant
- Type of part
- Safety valves
- Units in stock
- 3 units
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- Delivery time shown at checkout
- Return
- 14 days
Frequently asked questions about the safety valve 178985
What does it do?
The safety valve releases pressure when the circuit exceeds its set point (e.g. 3 bar).
Is it dripping or continuously expelling water?
It could be excess pressure (expansion vessel) or the valve itself not closing.
Which models is it suitable for?
Part shared by various models (see Compatibility). If your model does not appear, send us a photo of the marking and we will confirm it.
Installation and recommendations
Verify that the pressure setting in bar is correct for your boiler.
What does refurbished mean and what coverage does it have?
Part dismantled from an out-of-service boiler, inspected and tested. Includes 1-year warranty and 14-day return policy. Shipping 24/48 h within the peninsula.
