Products · Safety relief valves
Safety relief valves
Pressure-relief valves that protect a compressed-air system, receiver or compressor: they open at their set pressure, vent the air, then reseat. Brass body, silicone seat, compliant with the ASME code (Section XIII) and CSA B51. Male NPT threads from 1/4 to 1 in, set pressures from 5 to 300 PSI. Distributed by Onyx M3 Inc. List prices shown; add to your quote.
Sizing help
Unsure of the model? A technician validates before the quote.
Flow, pressure, dew point, network constraints: we confirm the chosen equipment truly fits your installation. No blind sale.
Why buy from Onyx M3
A purchase guided by technicians
The right sizing, validated
We confirm flow, pressure and dew point before recommending a model.
To Québec codes
Equipment and fittings compliant with RBQ · CRN · ASME · CSA B51.
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The equipment follows the diagnosis
Onyx M3 sells no compressor — the recommendation stays independent.