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How often must a safety relief valve be tested in Ontario?
Ontario requirements mandate that a safety relief valve's operation be manually tested and documented annually.
What is MAWP on an air receiver tank?
M.A.W.P. (Maximum Allowable Working Pressure) is the highest pressure an air receiver tank or pressure vessel is designed to safely contain under normal operating conditions. This rating is set by the manufacturer and is listed on the tank nameplate. When selecting tank accessories, the Safety Relief Valve (SRV) should be set below the tank's MAWP. Knowing your tank's MAWP is essential for safe operation, proper component selection, and pressure vessel compliance.
How often must a safety relief valve be replaced?
According to TSSA requirements, safety relief valves must be recalibrated or replaced every five years. However, valve age, condition, service history, and annual test results should also be considered. If the valve’s history is unknown or its reliability cannot be verified, replacement may be the safest and most cost-effective option.
What happens if a safety relief valve is not replaced after five years?
Operating beyond the required service interval may create compliance concerns and increase operational risk. Facilities should maintain records and replacement schedules to ensure ongoing conformity with applicable regulations.
The ultimate guide on rightsizing your compressed air system
Choosing the right compressed air system is crucial to minimize the total cost of ownership. How do you calculate the air demand in flow rate (CFM) and pressure (PSIG), what's the power requirement (V), and how does that translate in a compressed air system with one or more compressors (hp)?
Download our Comprehensive Guide for Choosing the Right Compressor Size!