Tag Archives: Flow Tests

Conducting Flow Tests

Look to NFPA Standards for Recommended Practices Industry and nationwide hydrant flow tests can vary greatly. Most people don’t know the National Fire Protection Association (NFPA) has a “recommended practice” for conducting a flow test: NFPA 291, Recommended Practice for Fire Flow Testing and Marking of Hydrants. The 2017 edition …

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Temperature Change and Dry Pipe Systems

Temperature Change

Fluctuations Can Cause Problems Temperature fluctuations can wreak havoc on certain types of systems in certain configurations. The most susceptible type of system to temperature fluctuations are dry-type systems, specifically dry-type systems which utilize a direct differential style dry valve. By direct differential style dry valves, it is understood to …

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