The Pressure Vessel Certification article provides you with information about the ASME stamp holder process for manufacturers and third party inspection companies.
Nameplate Data for Different Equipment Types. Motors: The National Electric Code requires that motor nameplates include the following information in addition to the manufacturerʼs name and address. The first edition of the Boiler and Pressure Vessel Code, known as the 1914 edition, was a single 114-page volume. It developed over time into the ASME Boiler and Pressure Vessel code, which today has over 92,000 copies in use, in over 100 countries around the world. Re-stamp or replace nameplates shall be made to the Jurisdiction in which the pressure-retaining item is installed. Application must be made on the Replacement of stamped Data Form, NB-136 (see NBIC Part 2, 5.3.2). Proof of the original stamping and other such data. Nameplate Data for Different Equipment Types Motors: The National Electric Code requires that motor nameplates include the following information in addition to the manufacturerʼs name and address. These vessels also require an authorized inspector to sign off on every new vessel constructed and each vessel has a nameplate with pertinent information about the vessel, such as maximum allowable working pressure, maximum temperature, minimum design metal temperature, what company manufactured it, the date, its registration number (through.
Do you what the pressure vessel certification process is? Do you know how pressure vessel manufacturers can be ASME stamp holders?
How Third Party inspection companies can be certified by ASME and be Authorized Inspection Agencies? What is a “U” stamped pressure vessel?
This article describes all the required information regarding pressure vessel certification and regulation.
Pressure Vessel Manufacturer Certification:
You may know pressure vessel manufacturer certification is the same as authorization for an ASME Stamp.
The pressure vessel manufacturers can implement an ASME Quality Control System and then apply for the ASME Stamp.
This means that if a manufacturer is accredited by the ASME organization for pressure vessels per ASME Code Section VIII Div. 1, they can stamp the letter “U” in the pressure vessel nameplate.
See the following Fig. for Pressure Vessel Certification (The Stamp Item)
The ASME Training Course is 5 days video training course and available online and the student that successfully pass the exam, receive I4I academy certificate with 40 hours training credit.
This is the process for ASME stamp accreditation:
1. Obtain Application Forms from ASME
2. Sign a Service Agreement with an Authorized Inspection Agency (AIA)
Authorized inspection agencies are third party inspection companies, which have accredited by an ASME organization and their inspectors are certified by the National Board Inspection Code (NBIC).
These inspectors are named authorized inspectors and hold commission cards issued by NBIC organization.
Summary: AIAs are accredited by ASME, but these inspectors are certified by NBIC.
3. Submit Application Forms to ASME and transfer Fees
4. Purchase ASME Code Books
5. Describe a QC-System according to the ASME code quality control manual and have the procedures prepared by the manufacturer.
6. Prepare a Demonstration Item
A representative demo pressure vessel needs to be constructed and all drawings, calculations, part lists, purchase orders, material test reports, fabrications, inspections, tests and reporting shall be based on ASME code section VIII requirements.
7. Qualify Procedures and Personnel
Quality control procedures and personnel also need to be approved by the manufacturer.
8. Pre-Joint Review by the Supervisor of AIA
It takes almost 4 months to fulfill the above requirements. Then an audit needs to be conducted by a supervisor authorized inspector, which is designated by an authorized inspection agency, which is under contract with the manufacture.
This auditor would report non-conformities found in the audit process, and then the manufacturer would have some time to correct them.
9. Joint Review (Audit) with ASME Designee, Inspector and Supervisor
Finally, the audit would be conducted by an ASME designated person, supervisor authorized Inspector and authorized inspector.
That is the reason this audit is named a joint review.
10. Issuance of Certificate and Stamp by ASME
If the result of Audit was satisfactory, the certificate would be issued by ASME and then manufacture would be authorized to stamp name plate with “U” Stamp.
What are the Different Pressure Vessel Stamps?
Manufacturing of Pressure Vessels (Shop and /or Field): U
Alternative Rules Section VIII, Division 2(Shop and /or Field):U2
Manufacturing of High Pressure Vessels (Shop and /or Field):U3
What is the Quality Control System that Needs to be Implemented in Pressure Vessel Certification?
For U the stamp, the quality control system needs to be based on ASME section VIII Div. 1 Appendix 10.
What is the Benefit for a Pressure Vessel Purchaser to Order a Stamped Pressure Vessel?
When a purchaser orders stamped pressure vessel from a stamp holder manufacturer, it is not necessary to hire a third party inspector.
Because this pressure vessel would automatically be inspected by an AI(Authorized Inspector) and its data report would be signed by him.
Another benefit can be the purchaser's assurance of the quality of the pressure vessel, because of the manufacturers responsibility to the ASME organization.
At the same time, ordering a stamped pressure vessel would be more expensive than a non-stamped pressure vessel.
Related Articles
Pressure Vessel Definition, ASME Code Section 8, Pressure Vessel Heads, Pressure Vessel Handbook, Spherical Pressure Vessel, Pressure Vessel Plate Material, ASME Pressure Vessel Joint Efficiencies, ASME Impact Test Requirement, Pressure Vessel RT Test, Vessel Pressure Testing, Third Party Inspection for Pressure Vessel, Inspection and Test Plan for Pressure Vessel
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Pressure Vessel Nameplate Data Logger
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Have your say about what you just read! Leave me a comment in the box below.(a)Pressure vessels (replaces UG-116, except paragraph (k), and UG-118). Pressure vessels that are required by § 54.10-3 to be stamped with the Coast Guard Symbol must also be stamped with the following information:
(1) Manufacturer's name and serial number.
(2)Coast Guard number, see § 50.10-30 of this subchapter.
(3)Coast Guard Symbol, which is affixed only by the marine inspector.
(4) Maximum allowable working pressure __ kPa (__ psig) at __ °C (__ °F).
(5) Class.
(6) Minimum design metal temperature, if below −18 °C (0 °F).
(7) Water capacity in liters (U.S. gallons), if a cargo carrying pressure vessel.
(b)Multichambered pressure vessels (replaces UG-116(k)). In cases where more than one pressure vessel is involved in an integral construction, as with a heat exchanger, the manufacturer may elect to class the component pressure vessels differently. In such cases he shall stamp the combined structures as required in paragraph (a) of this section with information for each pressure vessel. Where an item for stamping is identical for both vessels, as with name and address of manufacturer, it need not be duplicated. However, where differences exist, each value and the vessel to which it applies shall be clearly indicated.
(c)Stamping data (replaces UG-117). Except as noted in paragraph (d) of this section, the data shall be stamped directly on the pressure vessel. The data shall be legibly stamped and shall not be obliterated during the service life of the pressure vessel. In the event that the portion of the pressure vessel upon which the data is stamped is to be insulated or otherwise covered, the data shall be reproduced on a metal nameplate. This plate shall be securely attached to the pressure vessel. The nameplate shall be maintained in a legible condition such that it may be easily read.
(1) Those parts of pressure vessels requiring Coast Guard shop inspection under this part which are furnished by other than the shop of the manufacturer responsible for the completed vessel shall be stamped with the Coast Guard Symbol, the Marine Inspection Office identification letters (see § 50.10-30 of this subchapter) and the word “Part”, the manufacturer's name and serial number, and the design pressure.
(d)Thin walled vessels (Modifies UG-119). In lieu of direct stamping on the pressure vessel, the information required by paragraph (a) of this section shall be stamped on a nameplate permanently attached to the pressure vessel when the pressure vessel is constructed of -
(1) Steel plate less than one-fourth inch thick; or
(2) Nonferrous plate less than one-half inch thick.
Pressure Vessel Nameplate Data Chart