Does live testing(Hot floating) be required after overhaul safety valve sec.I for Boiler applicaiton 1

[james370]

Does live testing(Hot floating) be required after overhaul safety valve sec.I for Boiler applicaiton?

 

[bevjones2009]

Not a "hot float" but an insitu test is required.

 

[james370]

That's mean we will not always test to confirm blow down of safety valve, right?

ASME sec.l mentions that insitu test is accepted but of owner point of view, Does overhaul activity will affect with blow down of Safety valve or not?

Thanks

 

[Duwe6]

Normally, when a steam-service Pressure Safety Valve is overhauled, it is immediatly tested, with steam, on a test bench, to verify the setpoint. That test, if done by a certified Test Shop, is sufficient.

 

[rustbuster]

I am not aware of any test facilities that test with steam, at least in Alberta. I would be interested in where such a facility exists?

 

[bevjones2009]

I'm in the UK and I am currently on an inline testing contract, which consists of testing the pressure safety valves in there correct location. It gets very hot lol

 

[Duwe6]

rodbuster, go the National Board website and get the list of VR-certified ASME PRV test & repair facilities. Anybody that can test PSV's - subset of PRV's - specifically to protect ASME Sect I boilers, can steam-test relief talves. I'm sure that there is somebody just across the border from you. If you are going to ship them long-distance, there is an excellent shop in Louisville KY, just off Interstate 65 - Precision Services Inc.