This is my hot water tank. The cold water supply pipe comes in behind the tanks and loops up and over to come in at the top of this picture. I think I am correct in saying that it has a 2.1 bar pressure reducer followed by an 8 bar pressure relief valve. The problem is the pressure relief valve is leaking as evidenced by a steady drip coming through the tundish. I have removed the flexible pipe to confirm it is coming from the cold supply.
I am struggling to find a replacement for the relief valve and as it is designed to be attached to an expansion vessel a like for like replacement doesn't seem like the best option. Can anyone suggest something else I could replace it with?
For instance could I add a check valve and then t off to a pressure relief valve like this one at Screwfix https://www.screwfix.com/p/pressure-relief-valve-x/8131v.
Alternatively would replacing the cartridge in the existing valve be likely to stop the drip? In which case does this item look like the correct part https://www.ebay.co.uk/itm/Reliance-8-Bar-Blue-2116-Pressure-Relief-Cartridge-ZRC214009-/202795519742?var=0&mkevt=1&mkcid=1&mkrid=710-53481-19255-0&campid=5338268676&toolid=10044&customid=CjwKCAiAtdGNBhAmEiwAWxGcUjd--hx3dRRCCCcKxf59i6cW4avPVxe0Y6i-V9Q8TxkQlUCkuR86oRoCu4EQAvD_BwE
I am struggling to find a replacement for the relief valve and as it is designed to be attached to an expansion vessel a like for like replacement doesn't seem like the best option. Can anyone suggest something else I could replace it with?
For instance could I add a check valve and then t off to a pressure relief valve like this one at Screwfix https://www.screwfix.com/p/pressure-relief-valve-x/8131v.
Alternatively would replacing the cartridge in the existing valve be likely to stop the drip? In which case does this item look like the correct part https://www.ebay.co.uk/itm/Reliance-8-Bar-Blue-2116-Pressure-Relief-Cartridge-ZRC214009-/202795519742?var=0&mkevt=1&mkcid=1&mkrid=710-53481-19255-0&campid=5338268676&toolid=10044&customid=CjwKCAiAtdGNBhAmEiwAWxGcUjd--hx3dRRCCCcKxf59i6cW4avPVxe0Y6i-V9Q8TxkQlUCkuR86oRoCu4EQAvD_BwE
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