Reduced vs Full Port Ball Valve Class 600 2

[gatossi]

Good day! I have a question in regards to ball valves.
I just took over a project for a Process Plant and I'm checking the selection of valves. When I came to ball valves 600# our specification says to be "Reduced Bore" but our three vendors (all very well known and respected) had offered "Full Bore".
Is this standard for 600#?
Thanks for your help!

 

[gatossi]

caihui,
Sorry to say this time you are wrong... at least in respect with the spec...

We specify (bearing in mind this spec is 8 years old!) BS5351 Ball Valves Reduced Bore 600#.

I don't have any objection with full bore valves for this application (process plant... no pigging, no probe going trough, etc.. only shut on-off valve) but I got three different offers for a Full Bore valve (from three different manufacturers) and I was wondering whether the "standard practice" had changed (and so should my specification) or it was more an economical issue.


I thank you all guys for your answers (it was much more than I expected, as I also learnt/refreshed some other things beside my question)

 

[Ashereng]

Morten,

No worries.

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