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gas pressures

aldevoaldevo Posts: 1Member
Gas valves are usually rated for 1/2 psi max. Why is it trouble often when natural gas is approx. 10" or higher, but hardly ever a problem when lp is approx. 13" w.c.?
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Comments

  • VictoriaEnergyVictoriaEnergy Posts: 126Member
    nat vs lpg pressures

    7" WC is approx 1/4 PSI, I think they make the valves so they can tolerate a lock-up pressure from an upstream regulator of twice the normal working pressure.



    I think higher lpg pressures in combination with smaller burner orifices were originally intended to help the venturi effect for an acceptable air/fuel mix on start-up of atmospheric burners.



    Not sure what problem you are referring to...
    Home Owners Please Note:





    You are receiving advice from some very skilled pros completely free of charge. One of the reasons I participate is to sharpen my own troubleshooting skills. So; did we get it right? I would be grateful if you extend this courtesy back by posting the final outcome of the issue you are inquiring about. Thanks
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