Summary of Alberta Pressure Piping Regulatory and Engineering Requirements
In this summary I try to highlight major regulatory requirements enforced by Safety Codes Act and also ABSA in addition to Engineering requirements as defined in piping codes. For complete and detailed information on Safety Codes Act and ABSA's regulations, the original publications shall be viewed.
Safety Codes ActPressure Equipment Safety Regulation (PESR)Pressure Welders RegulationPressure Equipment Exemption OrderRequirements of Canada's CSA B51ABSA Regulatory 'AB-xxx' Forms and Directives (AB-518, AB-83,etc)ASME Codes and Standards (ASME B31 Series, ASME Section IX)1. Safety Codes ActEstablishes legal requirements for disciplines that can affect public safety
BuildingsElectrical systemsElevating devicesGas systemsPlumbing and private sewage disposal systems, andPressure equipmentScope
Responsibilities,Issuance and suspension of permits;Maintenance of a QMSOrders, appeals and penalties
2. PESR (Alberta Regulation 49/2006)
Enacted under SCO and it is law in AlbertaPESR and CSA-B51 prevail over codes in case of conflict
Key Requirements for Pressure Piping:
Build in accordance with ASME B31 Codes (Sec. 6)Certificate of Authorization Permit is required (Sec. 11)Design must be registered with ABSA (Sec. 14)Welding procedures must be registered with ABSA (Sec. 18)Piping system must be hydro tested (Sec. 30)Piping systems must be certified by Owner's Inspector (Sec. 31)Important Definitions:
Pressure Piping: Contains expansible fluid under pressure
Expansible Fluid: Either Gas/Vapor or Liquid that changes to Gas when pressure ↓or temp ↑.
Note: If fluid is not expansible at maximum design temperature, system is not pressure piping
Owner's Responsibilities based on PESR:
Section 31:Certify pressure piping data report (AB-83) and retain for at least 5 years
Section 35: Report any unsafe condition, accident or fire to ABSA
Section 37: Ensure that the pressure equipment meets the require Regulation and are maintained in good working order , an integrity management system is in place , safe operating limits are established and operators are competent.
Section 38, 39: Ensure over pressure protection is in place and maintained
Section 40: Ensure repairs and alterations comply with regulationsSection 41/42: Ensure Pressure Equipment is safe for continued service and records are maintainedPESR Exemptions
Gas piping that is used exclusively for combustion. If it's process gas, it is not exempt.Piping systems for non-flammable medical gases (e.g., air, oxygen, nitrogen).Refrigerating cycle piping < 10.5 Kilowatts.
Partial exemption if:
Pipe size does not exceed 2”MAWP less than 150 psi-29 C° < Design Temp. < 186 C°contains air, nitrogen, argon, carbon dioxide, steam or hot water, andthat is constructed to the applicable ASME CodeRegistration of Design:
No person shall Construct, manufacture or import pressure piping for use in Alberta unless the design is registered.Piping system less than 500 liters and fittings with CRN# are exempt.
Design Registration Requirements:
P&IDLine Designation Table (LDT)List of PRDsPiping Material SpecsWPS RegistrationPressure Test ProcedureAB-96 and AB-31 formsP.Eng StampOwner/Manufacturer informationAny other information administrator (ABSA) asks for
3. Pressure Welders Regulation (AR 169-2002)Requirements
Certificate of Competency: Use certified B or C Pressure Welders
Welder shall have Performance Qualification Card
Pressure Welders Regulation
Welder shall be employed by Certificate Of Authorization Permit holderWelder shall be knowledgeable of Certificate Of Authorization Permit holder WPS and QMSWPS shall be registered with ABSAWelding symbols shall be assigned to welders and used on weld mapsCompliance and maintaining a copy is mandatory
4. Pressure Equipment Exemption Order
Pressure piping system that is fully vented or with PRD with set pressure not exceeding 15 psia pressure piping system that forms part of a heating plantA pipeline, as defined in the Pipeline Act.
a boiler in which steam/vapor pressure ≤103 kpa and temperature ≤121 C°a boiler in which liquid pressure ≤1100 kpa and temperature ≤121 C°at or near the outlet of the boiler, orCombination of (i) and (ii)5. Canada's CSA B-51
Contains requirements for boilers, pressure vessels, pressure piping, and fittingsFitting's design (includes pressure relief devices) must be registered in applicable province and CRN must be obtained if applicableStates ASME B31 series or CSA codes (e.g. CSA Z662) as the acceptable codes of constructionWelding procedures shall be registered with the regulatory authority of the provinceCSA B51 fittings registration
6. See ABSA web site for a complete list of requirements.
7. ASME Codes and Standards (ASME B31 Series, ASME Section IX)Pressure Piping Codes
B31.1 Power PipingB31.3 Process PipingB31.5 Refrigeration PipingB31.9 Building Services Piping
B31.3 Process Piping Scope
Design and MaterialsFabrication and assemblyExamination, inspection, and testing