1. #1
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    Default Fire hose thread HELP!!!!!

    A wonderful fire department in north western PA donated several thousand feet of hose and other fire equipment to my rural dept. But there is one problem. They gave us 3 1/2 supply hose with thread I do not recognize. On the fitting are the number 3-1/16x6. Can anyone tell me in laymans terms that threads theses are so I can get adaptors?

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    You should be able to contact whoever you normally get your adapters from and get what you need. My career department runs a "bastard thread" as we call it (3.234x6) and get our from about anyone (Akron, Redhead, Kochek, etc).

    If the stories are true, only us and a department somewhere in PA use it. It seems many moons ago, the city got a helluva deal on hydrants that had this thread on them and bought a bunch of them. Only decades later did they find it was costing more in special threads for the FD (and hydrants after that purchase) that it would have been cheaper to buy standard threads.

    It used to be that we'd pay a premium, but last time I called it cost the same as a standard thread.
    Last edited by Catch22; 08-04-2009 at 02:34 PM.

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    Single start or double start threads?

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    Any reputable fire equipment company should be able to get ypu adapters for that hose.

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    This may or may not help you.


    COMMONLY USED THREADS National
    Standard
    Thread
    NH/NST Straight
    Iron Pipe

    NPSH/IPT Standard
    Pipe
    Thread
    NPT/TIPT British
    Standard
    Pipe Thread
    BSP
    Size ODM TPI ODM TPI ODM TPI ODM TPI
    " 1.375 8 1.035 14 1.050 14
    1" 1.375 8 1.295 11.5 1.315 11.5 1.309 11
    1" 1.990 9 1.878 11.5 1.900 11.5
    2" 2.515 8 2.352 11.5 2.375 11.5 1.882 11
    2" 3.068 7.5 2.841 8 2.875 8
    3" 3.623 6 3.470 8 3.500 8 2.960 11
    3" 4.243 6 3.970 8 4.000 8 4.125 3
    4" 5.010 4 4.470 8 4.500 8 4.625 3
    4" 5.760 4 4.970 8 5.000 8 5.125 3
    5" 6.260 4 5.563 8 5.625 3
    6" 7.025 4 6.625 8 6.625 3
    Note:
    Residential garden hose fittings are " GHT with 1.0625" ODM x 11 TPI
    Stay Safe and Well Out There....

    Always remembering 9-11-2001 and 343+ Brothers

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    Sounds like this free hose is going to cost you a few bucks.

    Depending on your mutual aid system, you may have to think about buying adapters for mutual aid departments or have plenty on hand in your apparatus to lernd them to make connections at an incident.
    Last edited by LaFireEducator; 08-04-2009 at 05:12 PM.

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    Quote Originally Posted by LaFireEducator View Post
    Sounds like this free hose is going to cost you a few bucks.

    Depending on your mutual aid system, you may have to think about buying adapters for mutual aid departments or have plenty on hand in your apparatus to lernd them to make connections at an incident.
    Only you would see a gift of thousands of feet of hose as a negative.

    What's the big deal in buying adapters? My volly FD carries adapters to go from 4 inch storz (2 of our neighboring FD's use this) to 5 inch storz, 5 inch storz to 2 1/2 inch female nst, 2 1/2 NST to 2 1/2 inch agricultural cam locks.

    My guess is the few adapters they need to buy will be far outweighed by the cost of the hose they received had they had to purchase it.

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    Quote Originally Posted by LaFireEducator View Post
    Sounds like this free hose is going to cost you a few bucks.

    Depending on your mutual aid system, you may have to think about buying adapters for mutual aid departments or have plenty on hand in your apparatus to lernd them to make connections at an incident.
    It doesn't take that many adapters. We've had our truck set up for decades with a certain number of ours female x standard male and a certain number of standard female x ours male on every one of our trucks. If we take our hose to go play with them, we've got the adapters needed. If they come play with us, we've got the adapters needed. Maybe three or four of each on each truck, maybe another to have already fitted to the end to screw onto the hydrant.

    There's no need to spend thousands of dollars on adapters for mutual aid companies that might respond to your jurisdiction, especially if you're underfunded enough to accept supply hose with a bastard thread.

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    Those threads myself are called Pittsburgh 6 there are 2 different versions of it (I know because we have both) 3.234x6 is the most common of the what you have is probably the equivalent to 3.068x6 try Kochek or Akron they sell a wide variety of PB6 adapters

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    Thank for all the help. I had a feeling they were Pittsburgh theard since I got it from Just north of there. I orders 6 adaptors from Darley. Since it is uses for supply line we don't need adaptors at every connection.

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