Call us : Phone 01977 554775

Biasi BI1182105 Riva Advance Garda He Plus Expansion Vessel | AK Gas Appliance & Spares Ltd

Biasi BI1182105 Riva Advance Garda He Plus Expansion Vessel

This Biasi Expansion Vessel BI1182105 helps to ensure pressure within the boiler and heating system remains stable.

Price: £53.64



Biasi BI1182105 Riva Advance Garda He Plus Expansion Vessel

This Biasi Expansion Vessel is in the boiler to ensure that the pressure within the boiler remains reasonably stable. The most common problem customer?s encounter when a Biasi expansion vessel is faulty is the boiler pressure builds to 3 bar when switched on (approx. after 10 ? 15 minutes). At this point hot water starts to dribble through the 3 Bar Safety Valve (Prv) then outside via the discharge pipe.

When the boiler cools down the pressure in the boiler falls to 0 bar and will not start, this is because the expansion vessel couldn't control the pressure within the boiler. The customer will then refill the boiler back up using the filling loop normally located below the boiler. Once the correct pressure is reached (1 Bar normally) the boiler will start to work again.

Most Engineers Change The Pressure Relief Valve When Changing The Expansion Vessel BI1182105, Please Read Why Below.

Normally when this expansion vessel fails the pressure relief valve is constantly open ensuring the boiler doesn?t work above 3 bar pressure and because of this the pressure relief valve needs changing as well.

Debris from within the boiler gets trapped on the seat of the pressure relief valve which prevents the pressure relief valve from re-sealing thus allowing the boiler to loose pressure. If you check below we may have displayed the pressure relief valve you require, if so please add it to the basket if you feel you require one.

This Product Fits The Following Boilers:
Biasi Riva Plus M90D 24S
Biasi Riva Plus M90D 28S
Biasi Riva Plus M90D 28Sr
Riva Plus M90D 24Sr
Essential Information

This is Genuine Manufactured Part

This spare part is an original manufactured part, it has been supplied by the boiler manufacturer and comes with all their guarantees and warranties (normally 12 months).

Most genuine parts supplied by the manufacturer are packaged in original packaging authenticating their quality and origin. Note some original parts don't come in any packaging and in these cases, we package the part to ensure the part is totally protected and arrives in perfect condition.

If other companies are selling this part at a substantially lower price than us there is a very good chance that their part is either compatible, re-conditioned, used or OEM. If this is the case then our competitor's parts will not have been supplied by the boiler manufacturer.

Search By Part Number



Click here to view our feedback on Trust Pilot

Click here to view our feedback on Google Reviews