PRV's - How likely are they to/soon will they fail/creep up in pressure?

[WaterTight]

I know it'll vary with quality. Just a ball park idea. Should most sit pretty and do as required for at least a few years?

Thanks

 

[jonnyswamp]

Just had a phone call, water passing out the pr pipe directly over their patio doors
I changed the prv about a year ago and repressurised the exp vess
Serviced it a month ago and repressurised again, they fed up now and want a new boiler asap
Could be valve again I suppose, but probly exp vessel and as it's a 12/14 yr old CDI, I 'll be charitable and let them allow me to fit a new one
I know, I know, I'm all heart

 

[ShaunCorbs]

Just had a phone call, water passing out the pr pipe directly over their patio doors
I changed the prv about a year ago and repressurised the exp vess
Serviced it a month ago and repressurised again, they fed up now and want a new boiler asap
Could be valve again I suppose, but probly exp vessel and as it's a 12/14 yr old CDI, I 'll be charitable and let them allow me to fit a new one
I know, I know, I'm all heart

think he means pressure reducing valve

 

[WaterTight]

sorry yes, i do.

 

[townfanjon]

The ones around £20 /30 are just garbage in my experience

 

[jonnyswamp]

think he means pressure reducing valve

Aah

 

[WaterTight]

What does it mean when it says PRV must be set when system is "closed"?

 

[townfanjon]

It just means , nothing is flowing and not causing a pressure drop .