Pressure relief valve install

[Leeboyguv]

Thanks for the reply,

I understand what your saying ,but in theory if i cut in relief valve into return by boiler this in principle is still protecting system at 3 bar no matter where it has been installed on the circuit, my problem is ive never seen it done this way. Only ever seen with ch system kit,eg ex vessel/gauge/ press relief combo. It Would give me peace of mind that someone has done this before.

As i said in previous thread i have no where to discharge safety valve in cylinder cupboard without ripping up carpet etc

Any points anyone has why i cant do this please let me know,

Thanks

 

[centralheatking]

Thanks for the reply,

I understand what your saying ,but in theory if i cut in relief valve into return by boiler this in principle is still protecting system at 3 bar no matter where it has been installed on the circuit, my problem is ive never seen it done this way. Only ever seen with ch system kit,eg ex vessel/gauge/ press relief combo. It Would give me peace of mind that someone has done this before.

As i said in previous thread i have no where to discharge safety valve in cylinder cupboard without ripping up carpet etc

Any points anyone has why i cant do this please let me know,

Thanks

I am an expert in Pressurised Domestic Heating Systems for various reasons. I think it is dangerous to fit extended remote pressure vent terminals, they ought to go straight out without
any possibility of damage or restriction. I have never seen such an idea but that is not to state you cannot do it ....I would advise NO. centralheatking

 

[Danb]

Hows the house piped up ive seen over flows from f + e tanks and supply drop down from the loft into the a/c.
Under floorboards and outside.
Which you could then pick up and take to drain.

 

[Leeboyguv]

Ok thanks for advice

Just so you know, if i install press relief by boiler i will still be discharging to outside.

Also i will be fitting ch system kit upstsirs, filling loop, vessel etc, i will just plug off port for press relief and install by boiler instead

Hope thats more clearer

Also have u got a reason why you believe its unsafe?

Thanks again for advice.

Really appreciate it
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Hows the house piped up ive seen over flows from f + e tanks and supply drop down from the loft into the a/c.
Under floorboards and outside.
Which you could then pick up and take to drain.

Yes mate seen this b4 too but trying to stay away from this idea

Thanks though mate

 

[Danb]

with out knowing your boiler they usually have prv built internally.
Never plug of a prv on your cylinder ticking time bomb if theres a system failure.
Check the mi's of what youre planning on buying.
Far as im concerned all appliances which generate heat or pressure should have a prv fitted to it. Prvs should be fitted where the heat is generated ( appliances)

 

[Leeboyguv]

with out knowing your boiler they usually have prv built internally.
Never plug of a prv on your cylinder ticking time bomb if theres a system failure.
Check the mi's of what youre planning on buying.
Far as im concerned all appliances which generate heat or pressure should have a prv fitted to it. Prvs should be fitted where the heat is generated ( appliances)

Sorry mate appreciate help but have u read thread, dident say anything about plugging prv on cylinder, boilers conventional

 

[Danb]

My mistake on that opening line I did see you mentioned it.
Post 19 mate you said you'll just plug off prv and move it next to the boiler.

 

[king of pipes]

I can't see a problem in doing what you are planning tee it in the return . Kop

 

[Leeboyguv]

I can't see a problem in doing what you are planning tee it in the return . Kop

Top man, appreciate ur advice

 

[centralheatking]

I can't see a problem in doing what you are planning tee it in the return . Kop

Kop but the rtn will be same pressure as rest of the system, willing to learn but pointless is
on now...regards centralheatking

 

[Leeboyguv]

Kop but the rtn will be same pressure as rest of the system, willing to learn but pointless is
on now...regards centralheatking

It should be same pressure, what makes you think it will be different?

Thanks

 

[king of pipes]

It should be same pressure, what makes you think it will be different?

Thanks

It's all the same pressure Lee just make sure you have no valves or controls on the return back to the boiler you need a open circuit the expansion vessel , pressure gauge , and filling loop will all tee in the return maybe in the airing cupboard . Cheers kop

 

[Leeboyguv]

It's all the same pressure Lee just make sure you have no valves or controls on the return back to the boiler you need a open circuit the expansion vessel , pressure gauge , and filling loop will all tee in the return maybe in the airing cupboard . Cheers kop

Perfect, yes ive checked all that,

Thanks
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Perfect, yes ive checked all that,

Thanks

Just wanted to see if anyone had a legitimate reason not to do this as ive personally never done it

Thanks again

 

[king of pipes]

Perfect, yes ive checked all that,

Thanks
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Just wanted to see if anyone had a legitimate reason not to do this as ive personally never done it

Thanks again

I have done it commercially loads of times .kop

 

[Leeboyguv]

I have done it commercially loads of times .kop

Lovely. Once installed i will force system over 3 bar in a few scenarios to prove it discharges anyway

Thanks again