Certifications · Compliance · Canada
Transport Canada
Welker pressure vessels are certified by Transport Canada for the transportation of dangerous goods in Canada, meeting all applicable federal transportation safety requirements under the Transportation of Dangerous Goods Act.
Certified Products
Transport Canada Certified Equipment
Each product is covered by its own Transport Canada certificate. Open the certificate for full conditions of use.
CP-2
Constant Pressure Cylinder
The cylinder is a piston-equipped receptacle constructed from seamless stainless steel tubing, with flanged flat head end caps restrained by six tie rods. The tie rods are secured at each end by nuts or are threaded into one end cap and secured by nuts at the other end. A floating piston divides the cylinder into two chambers: pre-charge and product.
| Volume | Length |
|---|---|
| 150 cc | 168 mm |
| 300 cc | 270 mm |
| 500 cc | 381 mm |
| 800 cc | 610 mm |
| 1,000 cc | 677 mm |
TCC
Transportable Crude Oil Container
The container is a stainless steel vessel with safety relief valves and pressure indicators, provided with either a threaded or clamp style lid.
| UN No. | Dangerous Good |
|---|---|
| UN1202 | Diesel Fuel |
| UN1203 | Gasoline |
| UN1267 | Petroleum Crude Oil |
| UN1268 | Petroleum Products, N.O.S. |
| UN3295 | Hydrocarbons, Liquid, N.O.S. |
| UN3494 | Petroleum Sour Crude Oil, Flammable, Toxic |
Understanding Transport Canada
What Is a Transport Canada Certificate?
Transport Canada issues certificates (SU numbers) that let dangerous goods be transported in containers that vary from the standard regulations, subject to conditions that provide an equivalent level of safety.
Federal Oversight
Transport Canada is the federal department responsible for transportation policies, programs, and the safety of all modes of transport in Canada.
TDG Act & Regulations
The Transportation of Dangerous Goods Act governs how hazardous materials like crude oil, gasoline, and hydrocarbon samples move across Canada.
Equivalent Level of Safety
Each certificate sets the design, construction, and use conditions a container must meet. The SU number identifies the certificate, and renewals extend its expiry date.
Official Documents
Welker Transport Canada Certificates
Download the current English certificate for your project file.
Find More Welker Documentation
Certifications & Compliance
ISO, CRN, CSA, DOT, and Transport Canada certification and compliance documentation.
View Certifications →CRN Registrations
Canadian Registration Numbers for Welker pressure equipment, searchable by province.
View CRNs →DOT Special Permits
U.S. DOT Special Permits, MAOP, and certified Welker pressure vessels for hazardous materials transport.
View DOT Permits →ISO 9001:2015
Welker’s quality management system certification.
View ISO →IOM Manuals
Installation, Operation & Maintenance manuals for Welker products, current and legacy.
View IOM Manuals →All Resources
Browse IOMs, certifications, papers, patents, events, and the Welker trademark list.
Browse Resources →Questions About Canadian Transport Compliance?
Our team can provide documentation or help verify that Welker equipment meets your Canadian transportation requirements.
