Hi,
As per my understanding normally they do pressure testing for each valve and may be the for the printing sake they prepared one report as all the conditions are same.
Please verify with the valve manufacturer for the conclusion.
Regards,
Arun S Das
On Wednesday, 30 March 2016 11:46 AM, JIJILAL K M <jijilalkm2@gmail.com> wrote:
Dear Experts,
I've a concern regarding , valves.
our client is insisting to submit individual pressure test certificates of control valves , for 6" & above lines.
but the valve supplier's provided certificate showing,it is for 60 valves of same kind.
Is each valve no need to pressure tested at manufacturer's premise before delivery? which code / std refers individual/random pressure test criteria of valves?
JIJILAL K.M.
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