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GAS DETECTORS

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GREENMAN
GREENMAN Member Posts: 25
in THE MAIN WALL
WHICH GAS DETECTOR WOULD NOT GIVE A FALSE READING WHEN THERE IS PIPE DOPE PRESENT AT THE JOINTS. DOES ANYONE KNOW.

SOAP AND WATER WORK WELL BUT I 'LL LIKE TO BUY AN ELECTRONIC TESTER

THANKS

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  • Slimpickins
    Slimpickins Member Posts: 339
    edited January 2011
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    no such thing

    All gas detectors will alert when a petroleum based pipe dope is used. For gas you need to use a product without petroleum. There are a lot of Teflon based dopes out there but I've been using Megaloc for years with great results. Also a heads up, typing in caps is bad on-line etiquette, it's considered yelling.
  • Big Ed_4
    Big Ed_4 Member Posts: 2,785
    edited January 2011
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    Gas Detectors

    A gas detector will show the general idea of the location of a leak . I have one sitting in the truck for years ... I find a good bubble solution like Big Blue with show you the slightest leak ... Far better then soapy water...

    There was an error rendering this rich post.

  • Tim McElwain
    Tim McElwain Member Posts: 4,625
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    Gas detectors are designed

    to be used as a safety device to measure percent of gas in an environment. With natural gas the Upper (14.5 % gas) and Lower explosive limits (4.5% gas) are measurable with the detector. Or for LP it is 2.15 to 9.6%. Any reading above 2% you should evacuate the building and call the utility or propane company. NEVER  enter a building were you smell gas unless you can determine % of gas with a good detector. Any thing less than 2% proceed with caution ventilating the area and make sure all sources of ignition are secure. An easy way to remember is above 2% you evacuate below you ventilate.



     They are not the best for pinpointing gas leaks. Better to either do a test using the test dial on the meter with all pilots shut off to show that there actually is a leak.There would be movement of the 1/2 foot test dial. Or another method is by using a U gauge (manometer) and see if there is a pressure drop. To finally pinpoint leaks is to use non-corrosive soap and water.
  • GREENMAN
    GREENMAN Member Posts: 25
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    GAS

    Thank you all
This discussion has been closed.

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