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  • Users: mech9238
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  1. mech9238

    Sprinkler NFPA 13 and Standpipe NFPA 14 Hydrostatic Testing

    Is the purpose of a Sprinkler and Standpipe test in NFPA13 and NFPA14 for: Structural integrity testing or leak testing? I was reading online and in the engineering forums here for ASME piping and hydrotesting (determining pressure amounts for test, etc) Is the 200psi for 2 hrs only for...
  2. mech9238

    HVAC Piping and Sprinkler Hydrostatic Testing (trapped air)

    Good Morning, Trapped air in a sprinkler or hvac (condesner, chilled water) system and hydrostatic testing. Hydrostatic test: min 200psi to max 450psi, Water with trapped air (cannot determine amount of air) Reading online, testing with air at 30psi is equivalent to a 150 water test. (the...
  3. mech9238

    Hot Water system, Pressure Gauge and Expansion Tank

    Hello, Expansion Tank Hot water system, starting at 70 degrees or domestic water temperature. Testing a radiant heating panel system. Start: 70 Temp, 40PSI Finish. 120 Temp Includes an expansion tank and pump. Pex piping. Will the system of a hot water system, which increases in pressure...
  4. mech9238

    Hydrostatic Pressure Testing with entrapped air and temperature

    Hello, I am new to this forum but have visited it several times. This might be a basic question but wanted to ask: My question is for performing hydrostatic testing for B31.9 Piping, Pex Piping, Radiant heating systems, and standpipe hydro tests. All testing would be anywhere between 15psi...

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