Canadian Boiler & Pressure Vessel Construction Regulations PDF

^ Chapter 1 • Legislation and Codes for Power Engineers OBJECTIVE 5 Describe the general procedure and regulations that must be followed in order to construct, install, and place a new boiler or pressure vessel into service in Canada. NEW BOILER OR PRESSURE VESSEL CONSTRUCTION Each jurisdictions...

^ Chapter 1 • Legislation and Codes for Power Engineers OBJECTIVE 5 Describe the general procedure and regulations that must be followed in order to construct, install, and place a new boiler or pressure vessel into service in Canada. NEW BOILER OR PRESSURE VESSEL CONSTRUCTION Each jurisdictions act and regulations set out the requirements for the construction of boilers and pressure vessels in and for that jurisdiction. CSA-B51, which has been adopted by all jurisdictions in Canada, specifies the procedure to be followed in the construction of a new boiler or pressure vessel. Registration As was mentioned earlier, the boiler or pressure vessels design must be registered. Once a design has been registered, other boilers or pressure vessels can be built using the same design, provided there are no changes in construction and provided there have been no changes in any applicable regulations, codes, or standards that apply to the registered design. AU welding, brazing, and other joining procedures must be registered with the regulatory authority of the province or territory in which the welding or brazing will be performed. Components of a Canadian Registration Number (CRN) When a province or territory registers a boiler or pressure vessel design, the design will be given a Canadian Registration Number (CRN) by the regulatory authority. To identify the province or territory that first registered the design, a number or letter will be placed after a decimal point. If the design is registered in another province or territory, a number or letter representing that province or territory will follow the number or letter of the original. The registration numbering for the provinces begins with British Columbia, which is given the number one; the numbers increase progressively for each province in the eastward direction. Letters, rather than numbers, are used to show registration in each of the territories. The following identifications are used: 1 British Columbia 6 Quebec T Northwest Territories 2 Alberta 7 New Brunswick Y Yukon 3 Saskatchewan 8 NovaScotia N Nunavut 4 Manitoba 9 Prince Edward Island 5 Ontario 0 Newfoundland An example of a CRN is CRN 290.469Y. This design, first registered in Manitoba, was given the registration number 290 and registered as CRN 290.4. It was subsequently registered in Quebec and given the number CRN 290.46. Then it was registered in Prince Edward Island and given the number CRN 290.469. Finally, it was registered in Yukon, so it was given the number 290.469Y. A design that is registered in all provinces and territories can be shortened to include the original registration number, the code of the first jurisdiction of registration, plus the letter C. Using the example above, the new registration number would be CRN 290.4C. 24 3rd Class Edition 3 - Part A2 Legislation and Codes for Power Engineers • Chapter 1 Fabrication Inspection A fabrication inspection (also called shop inspection) refers to the physical inspection of equipment and the verification of all quality control activities during the manufacture of boilers, pressure vessels, and pressure piping to ensure compliance with provincial regulations and codes. CSA-B51 stipulates that a fabrication inspection in Canada shall be carried out by an inspector employed by the regulatory authority in the province of fabrication or, in an ASME shop, by an inspector holding a National Board commission and employed by an ASME authorized inspection agency (CSA-B51-19, Part 1, Clause 4.8.1). Some of the duties of an inspector during fabrication include the following: • Verifying the authorization of the manufacturer • Ensuring that the manufacturer follows the quality control procedures • Ensuring that fabrication conforms to design drawings, specifications, and procedures • Witnessing hydrostatic tests • Inspecting each boiler or pressure vessel during and after construction • Verifying the stamping and nameplate • Signing the manufacturer s data report Hydrostatic Test After fabrication is completed, hydrostatic testing of the boiler or pressure vessel is conducted. A power boiler is tested at 1 l/t times the maximum allowable working pressure shown on the data report and stamped on the boiler. The test is conducted using water at no less than ambient temperature but in no case less than 70°F (20°C) (ASME BPVC 1-2015, PG-99). For pressure vessels, the hydrostatic testing is described in ASME BPVC VII-2015, UG-99. Stamping and Nameplate Data Stamping is done by the manufacturer in the presence of the authorized inspector after the hydrostatic test. The manufacturers data report is also signed at this time. If the construction was done in an ASME authorized shop, the appropriate ASME stamp will be applied. This certifies that the construction was done in accordance with the relevant section of the ASME code. The nameplate stamping of a boiler or pressure vessel must be according to the appropriate section of the ASME code (e.g.. Section I, PG-106) and include the following information: • The manufacturers serial number • The maximum allowable working pressure (MAWP) • The heating surface or kilowatt output • The year built and the maximum design steaming capacity (Ib/h or kg/h) In addition to the ASME code required nameplate data, the nameplate for boilers manufactured in Canada must also have the CRN and may also need a provincial identification number. Submission of the Manufacturer's Data Report A manufacturer s data report (MDR) tracks the manufacturing and inspection record of a boiler or pressure vessel. The report is signed after the hydrostatic test at the time of the stamping. Information contained in the MDR includes the date of manufacture, construction details, materials, dimensions, design pressure, hydrostatic test pressure, maximum design steaming capacity, and certification statements by both the manufacturer and inspector. A copy of the MDR must be sent to the regulatory authority where the vessel is to be installed. 3rd Class Edition 3 • Part A2 25 ^ Chapter 1 • Legislation and Codes for Power Engineers Certificate of Inspection Certificate of inspection permits are issued by the regulatory authority upon completion of the final shop inspection or, if the item is imported, upon completion of an initial inspection by the regulatory authority. This certificate authorizes the operation of the boiler or pressure vessel in the issuing province. NEW BOILER OR PRESSURE VESSEL INSTALLATION AND START-UP Normally, the manufacturer s instructions for installation and start-up of a new boiler are followed. However, guidelines for the installation and start-up of a new boiler are also contained in ASME BPVC Section VII-2019, Article 101, BoUer Operation. This information is not all-encompassing but rather gives an overview of checks and procedures. The full title ofASME BPVC Section VII is Recommended Guidelines for the Care of Power Boilers. The information contained within the section are recommendations only. If required, deviating from these recommendations may be advisable. Additional guidance can be found in other relevant codes produced by other organizations such as the National Fire Prevention Association. Article 101 is broken down into several sub-sections including the following: • Sub-section 101.1, General contains general information on the importance of proper training of the operators, how explosions can be prevented, and the importance of maintaining proper water level, furnace pressure, and allowances for expansion. • Sub-section 101.2, Preparing for Operation contains information on the need for inspection by an Authorized Inspector and the need for chemical cleaning. Also included are checklists for safety, water-side, fire-side, external inspections of the boiler, and pressure testing of the boiler. • Sub-section 101.3, Starting Up explains the practices that should be followed in establishing a safe operating water level. Also included is information on instrumentation checks, valve 0 checks, gauge glasses, and more. Recommendations for lighting off, boiler warm up rate, and going online are included in this sub-section. Side Track Sub-section 101.1.3 pertains to maintaining proper water level. In this sub-section is a caution that states that the most common way to destroy a boiler is operating it without sufficient water to cool pressure parts. It goes on to say that the best, safest/ and only advice is: If in doubt, shut it down! This advice has undoubtedly saved many boilers. 26 3rd Class Edition 3 • Part A2