Section 14 Boiler and Pressure Vessel

1401. Application

The requirements in this Section applies to the manufacturers which have the activity categories such as the manufacturing process, or manufacturing process and design, or manufacturing process,

design and test of the Boilers and Class Ⅰ & Ⅱ Pressure Vessels prescribed in Pt. 5, Ch. 5 of

the Rules for Classification, Steel Ships.

1402. Documents to be submitted

The following reference data in addition to those specified in 102. are to be submitted to the Society. (if any)

(1) Kind of product and activity categories

(2) Types(models) of pressure vessels and/or boilers being produced(including design pressure, max. dimension or capacity)

(3) In case of an application for boilers and/or class Ⅰ pressure vessels, design drawings of boiler

and/or class Ⅰ pressure vessel having the max dimension or the max. condition. (if the draw-

ings are already approved by the Society, the submission of drawings may be waived

appropriately.)

(4) Manufacturing flow chart indicating all of the production processes and relative testing & in- spection points

(5) Reference to written procedures for testing and inspection (Procedures need not be submitted, but must be available for review at the manufacturer's works upon request.)

(6) A list and description of equipment used for mechanical testing, pressure testing, non-destructive testing and production & machining facilities

(a) Equipment for material preparation and forming, cutting machines, bending rollers, bending

presses, machining equipment, adjustment and position equipment

(b) Equipment for surface treatment and processing

(c) Equipment for preheating

(d) Equipment for welding, welding processes used

(e) Equipment for heat treatment, including type of furnace, size, temperature range, temperature control and recording

(f) Equipment for hydraulic pressure testing

(7) Qualification of personnel engaged in testing and inspection

(8) Details for welding

(a) WPS for all types of materials and thickness ranges for which approval is sought

(b) Relevant PQR, quality requirements for welding operator, list of certified welders with qual- ification range, welding method, position and material type

1403. Approval test

1. Approval tests are to be carried out with the representative boiler or class 1 pressure vessel in pro- duction in the presence of the Surveyor. However, class 2 pressure vessel may be used if the man- ufacturer has the capability of producing class 2 pressure vessels only.

2. Approval tests listed below should at least be carried out to confirm that applied type of products are in compliance with the requirements of Pt 5, Ch 5 of the Rules for Classification, Steel Ships.

(1) Review of documentation from manufacturer and verification of the procedures(requirements for identification and traceability of the products, materials and welding details)

(2) Non-destructive testing, in compliance with agreed procedures and Rule requirements

(3) Hydraulic test in compliance with Rule requirements

1404. After approval

After obtaining the approval, witnessing of welding workmanship approval test may be waived at the discretion of the Surveyor.