PRV Termination

[raffuk]

On a condensing boiler is there anything wrong with terminating the copper prv pipe into plastic soil pipe. Both Condensing pipe and PRV have been terminated at nearby soil pipe.

 

[dancinplumba]

yes its wrong there isnt a visual way of checking that prv is blowing off

 

[PlumbBobBob]

you have to visually see if the prv is passing as dancinplumba said

 

[raffuk]

Thanks guys. If it did blow out, does it blow at a temperature that could melt part of the plastic soil pipe? Is it worth calling back the plumber to correct it, installation was done 3 weeks ago

 

[ecowarm]

It could pass through a visible tundish on the inside if no other option maybe

 

[dancinplumba]

Thanks guys. If it did blow out, does it blow at a temperature that could melt part of the plastic soil pipe? Is it worth calling back the plumber to correct it, installation was done 3 weeks ago

as eco says but requires a trap after tundish. do you have any pictures you can upload, carnt understand why your "plumber" has done this ?

 

[AWheating]

would be best to put a tundish and hepvo valve in and use push fit not solvent waste.

 

[kirkgas]

would be best to put a tundish and hepvo valve in and use push fit not solvent waste.

im not doubting what you are saying, but why cant you use solvent for blow off, it is designed for use as sink wastes and quite often boiling water gets put down there

 

[dancinplumba]

would be best to put a tundish and hepvo valve in and use push fit not solvent waste.

edited

 

[tweakyboy]

You can't use ABS solvent weld for high temperature blow offs, I know Osma's push fit range is suitable for high temperatures. Any waste pipe/fittings taking high temperatures must comply to BS 5254 or BS EN 1451 also it must be clipped at maximum 300mm apart!