What You Need to Know About LPG Hose Inspections and Testings

June 12, 2019

Liquefied petroleum gas (LPG) hose inspections and testing requirements are vital to ensure proper function, that everything is mechanically fit and compatible with the lading. The CSA B620 is a required set of tank standards from the Canadian Standards Association. B620 ensures hose assemblies mounted on or accompanying tanks are void of defects, have legible markings, and are pressure tested annually.

Do you operate a vehicle, loading and unloading dangerous liquefied gases? When was the last time your hoses were inspected? If you haven’t had an inspection in the past 12 months, you are contravening the CSA standards for safe transportation of dangerous goods. Superior Pressure Vessels can assist you with the required inspections so you are compliant with necessary CSA standards.

What can you expect to be checked in a hose inspection?

  • If there is damage to the hose cover, exposing the reinforcement
  • Possible soft spots while not under pressure, bulging under pressure or loose outer coverings
  • If there is any flattened, kinked or permanently damaged wire braid
  • Checking for any visibility of slipping, damaged or extremely worn hose couplings
  • Looking for missing or loose bolts or fastenings on bolted hose coupling assemblies
  • Possible deteriorated legibility or absence of identification or serial numbers and HAWP

While your hose is undergoing the annual pressure test, what can you expect during the examination?

  • Hoses and Fittings shall have no less than 2400 kPa (350 psi) working pressure in liquefied petroleum gas service
  • The hose assembly needs to hold the pressure without bulging, leaks or distortion for a minimum of 5 minutes while isolated from the pressure supply to pass the pressure test

How do you know if a hose assembly has passed a pressure test?

It will be marked with a stamp on an end fitting or by a metal tag or washer in letters no less than 5mm (0.2 inches) high with the year and month of inspection. Reports are created after the test and maintained for two years at the facility performing the test. All pertinent information shall be included in the reports including date of testing, name and address of the facility, identification numbers of the assembly, the HAWP, and the type of inspection performed.

Is there training required to complete a hose test and inspection?

Yes, personnel performing inspections and testings need to be trained in product and hose safety, test and inspection procedures and rejection criteria.

Superior Pressure Vessels follows the requirements of CSA B620 and will help ensure you and your dangerous goods have a safe ride.

Do you need more information on your pressurized gas transportation test requirements? With over 40 years of experience and certified technicians, Superior Pressure Vessels can perform the service you require.


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