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gas pressure

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Hi, we recently had a plumber doing work in our house to fix a gas leak. Our main gas line was turned off by the gas company due to the leak. In order to test the pipes, he applied 10 psi against our appliances. My question is can this damage the appliances (furnace, oven, water boiler) if done for a short time? And he found multiple leaks after fixing the first one- can that have been caused by applying more pressure than the pipes can handle during his testing?
Thank you!
Mad Dog_2

Comments

  • hot_rod
    hot_rod Member Posts: 23,128
    Do you have pressure regulators at every appliance? or did he shut off the valves? Typically every appliance has a shut off valve behind or near it.

    The system should be able to hold 10 psi without leaking.
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
    Mad Dog_2
  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 16,298
    The high pressure will not damage the pipe or fittings.

    It could very well damage the appliances if they are not isolated. Even shut off valves can leak by
    Mad Dog_2
  • Mad Dog_2
    Mad Dog_2 Member Posts: 7,473
    You'll know soon enough!   Have a sharp Appliance repairman (a dying breed) to check them.  Mad Dog 🐕 
    Consulting by Mad Dog & Matt Jr.

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