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  2. North American Fire Hose Coupler Incompatibilities - Wikipedia

    en.wikipedia.org/wiki/North_American_Fire_Hose...

    NFPA 1963, which defines the vast majority of fire hose couplings in existence, and ANSI-ASME B1.20.7, which defines garden hose thread (sometimes used by wildland fire fighting crews) along with (non-tapered) iron pipe thread, and ANSI B26, FIRE-HOSE COUPLING SCREW THREAD FOR ALL CONNECTIONS HAVING NOMINAL INSIDE DIAMETERS OF 2 1 ⁄ 2, 3, 3 1 ...

  3. National pipe thread - Wikipedia

    en.wikipedia.org/wiki/National_pipe_thread

    National Pipe Taper Fuel (NPTF, also called Dryseal American National Standard Taper Pipe Thread, defined by ASME B1.20.3) is designed to provide a more leak-free seal without the use of PTFE tape (often referred to by the popular brand name "Teflon") or another sealant compound. NPTF threads have the same basic shape but with crest and root ...

  4. Mettler Toledo - Wikipedia

    en.wikipedia.org/wiki/Mettler_Toledo

    In 1912, the company name changed once again, to Toledo Scale Company. [8] Additionally, a new scale line featuring a double pendulum mechanism and a dial face was introduced and was most suited for industrial applications. [9] In 1957, Reliance Electric Co, merged with Toledo Scale Co. Reliance paid about $70 million in stock for the purchase ...

  5. Threaded pipe - Wikipedia

    en.wikipedia.org/wiki/Threaded_pipe

    Therefore many municipal plumbing codes restrict the use of threaded plastic pipe fittings. Both British standard and National pipe thread standards specify a thread taper of 1:16; the change in diameter is one sixteenth the distance travelled along the thread. The nominal diameter is achieved some small distance (the "gauge length") from the ...

  6. Grinnell Mechanical Products - Wikipedia

    en.wikipedia.org/wiki/Grinnell_Mechanical_Products

    The company specialized in gas main installations, putting in the original gas mains in Rhode Island. They eventually grew to offer pipe fitting and plumbing services. In 1869, Frederick Grinnell , a Massachusetts-born engineer, purchased a controlling interest in Providence Steam and Gas and became its president.

  7. Category:Companies based in Toledo, Ohio - Wikipedia

    en.wikipedia.org/wiki/Category:Companies_based...

    Defunct department stores based in Toledo, Ohio (3 P) Pages in category "Companies based in Toledo, Ohio" The following 35 pages are in this category, out of 35 total.

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