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905 765 2004

Compliance 101: NFPA for rotary valves.

Browse our resource page to learn all about NFPA regulations, Dust Hazard Assessments (DHAs), and NFPA-compliant features for rotary airlock valves.

Not sure if your valve is compliant? Ask an ACS rep for help.

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DHAs: Don't forget!

Remember, your Dust Hazard Assessments (DHAs) are due every 5 years.

Test for combustibility

Not sure if your plant generates combustible dust? It’s your responsibility to find out. Contact a lab to get your materials tested.

Identify dust hazards

The DHA can be done by a qualified consultant or in-house team who knows the process. They will identify any fire, deflagration and explosion risks in the facility.

Get equipped for action

You must demonstrate an effort to correct the hazards identified by the DHA. That may mean changes in your plant layout, equipment or housekeeping procedures.


Conveying system safety tips for static, dust and fire hazards

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diagram of NFPA guidelines