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Dear All,
I need a help from you.
What is the validity period for a hydro test of a pipeline / pressure vessel / air receiver tank ?
I read all codes ( ASME B31.4,31.8,31.3 , API RP 1110 & DNV , etc...)
But i cant get any notes for validity period .
My client is want the due date in certificate , So kindly help me.
hello,
what do you mean by validity
it is the holding time or next renewable hydrotest
regards
hello,
what do you mean by validity
it is the holding time or next renewable hydrotest
regards
This question is like asking how long a welded joint will last.
If one is issuing a certificate on radiography, of a given joint, it does not require an expiry date.
If there will be any expiration, it has to do with the next time fabrication/welding will be done on the given equipment.
God bless you all.
I believe this is not a matter of standards but of regulations and national laws. One country may ask for renewal every 5 or 10 years, another is satisfied with less tests.
So I would suggest you contact the institution which is in charge of it, could be something like TUEV or else, again depending on the countries' laws.
Thanks for every one . We finally issue 3 years validity. Sorry for the late reply And I found a note from "code of federal regulation shipping" they state 5 years validity for a pressure vessel hydrotesting.
Once again thanks for every one
Sent from my SM-N9005 using Tapatalk
"At least once every 10 years, a hydrostatic test and internal examination of 10% of the
system‟s extinguishing agent and pilot cylinders shall be conducted. If one or more
cylinders fail, a total of 50% of the onboard cylinders shall be tested. If further cylinders
fail, all cylinders shall be tested"
[url]http://www.register-iri.com/forms/upload/MN-2-011-14.pdf[/url] (Page No. - 04)
(a) Basic requirements. Each pressure vessel must be examined or tested every 5 years. The extent of the test or examination should be that necessary to determine that the pressure vessel's condition is satisfactory and that the pressure vessel is fit for the service intended.
(b) Internal and external tests and inspections.
(1) Each pressure vessel listed on the Certificate of Inspection must be thoroughly examined externally every 5 years.
(2) In addition, each pressure vessel listed on the Certificate of Inspection that is fitted with a manhole or other inspection opening so it can be satisfactorily examined internally, must be opened for internal examination every 5 years.
(3) No pressure vessel need be hydrostatically tested except when a defect is found that, in the marine inspector's opinion, may affect the safety of the pressure vessel. In this case, the pressure vessel should be hydrostatically tested at a pressure of 11/2 times the maximum allowable working pressure.
[url]http://www.law.cornell.edu/cfr/text/46/61.10-5[/url]
"Each pressure vessel examined or tested every five years"
[url]http://tinyurl.com/lzqsmct[/url]
[url]https://www.osha.gov/dts/osta/otm/otm_iv/otm_iv_3.html[/url]
"At least once every 10 years, a hydrostatic test and internal examination of 10% of the
system‟s extinguishing agent and pilot cylinders shall be conducted. If one or more
cylinders fail, a total of 50% of the onboard cylinders shall be tested. If further cylinders
fail, all cylinders shall be tested"
[url]http://www.register-iri.com/forms/upload/MN-2-011-14.pdf[/url] (Page No. - 04)
(a) Basic requirements. Each pressure vessel must be examined or tested every 5 years. The extent of the test or examination should be that necessary to determine that the pressure vessel's condition is satisfactory and that the pressure vessel is fit for the service intended.
(b) Internal and external tests and inspections.
(1) Each pressure vessel listed on the Certificate of Inspection must be thoroughly examined externally every 5 years.
(2) In addition, each pressure vessel listed on the Certificate of Inspection that is fitted with a manhole or other inspection opening so it can be satisfactorily examined internally, must be opened for internal examination every 5 years.
(3) No pressure vessel need be hydrostatically tested except when a defect is found that, in the marine inspector's opinion, may affect the safety of the pressure vessel. In this case, the pressure vessel should be hydrostatically tested at a pressure of 11/2 times the maximum allowable working pressure.
[url]http://www.law.cornell.edu/cfr/text/46/61.10-5[/url]
"Each pressure vessel examined or tested every five years"
[url]http://tinyurl.com/lzqsmct[/url]
[url]https://www.osha.gov/dts/osta/otm/otm_iv/otm_iv_3.html[/url]