Pressure Relief Valve Ports???

[iaingray741]

Hi,

Can someone help me to identify the ports on my pressure relief vale? (pictured).

I noticed a pipe coming off my pressure relief value (directly behind the pressure gauge in the photo), that runs through my garage and is capped at the other end.

Can anyone tell me what that would be for?

Thanks,
Iain

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• iaingray741
• 2 Feb 2015
• 1

Untitled

• iaingray741
• 2 Feb 2015
• 1

Untitled

• iaingray741
• 2 Feb 2015
• 1

Untitled

• iaingray741
• 2 Feb 2015
• 1

 

[andytw]

That would be where the relieved pressure escapes.
What do you mean by capped ?

 

[gigz]

Un cap it, then get a G3 engineer to replace a probably passing prv. P.S. Whoever capped it is a prat.

 

[Dan Robinson]

Probably the same doughnut that lathered the thing in PTFE

 

[iaingray741]

I thought it was a cap, but maybe it releases pressure...would that be water or air?

When I moved in and noticed the pipe in the garage I just assumed it was for an outside tap...but then I noticed it comes off the pressure relief value.

 

[andytw]

It lets out excessive hot water should there be any. It should not be capped.

 

[iaingray741]

thanks for the info all!

so i should just remove the cap and the open pipe running to a drain?

 

[andytw]

In a previous message in this thread it was suggested that the PRV is probably 'passing' or leaking water, so to fix this problem someone has capped off the pipe which is a very bad thing to do.
So, yes, the cap should be removed and if there is water constantly leaking from the pipe, when the system is at an operating pressure, then the PRV should be replaced.

 

[stardanny]

Are you sure it is capped? Look like compression cap?

Could be a pipe cowl design to direct water onto the wall

Daniel.

 

[Steelmasons]

Could well be a PRV elsewhere on system ie: on boiler.

Capped PRV on robo kits many a time when installing new boiler that incorporates an integral PRV.

 

[andytw]

Could well be a PRV elsewhere on system ie: on boiler.

Capped PRV on robo kits many a time when installing new boiler that incorporates an integral PRV.

But do you run the pipework for it out through a garage and then cap it ?

 

[Steelmasons]

No I don't but others might.

What boiler is it?

 

[Steelmasons]

Could well be a PRV elsewhere on system ie: on boiler.

Capped PRV on robo kits many a time when installing new boiler that incorporates an integral PRV.

But do you run the pipework for it out through a garage and then cap it ?

No but the last installer obviously did , I would remove discharge pipe from PRV and cap , if I could remove discharge pipe then it would reside in the scrap bag until further notice.