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2. National pipe thread - Wikipedia

   en.wikipedia.org/wiki/National_pipe_thread

   The sealants, where used, are typically thread seal tape thread sealant or a thread seal paste pipe dope (sometimes similar in composition to plumber's putty). Because the thread body is tapered (0.75 in/ft or 62.5 mm/m), a larger diameter keeps compressing into a smaller diameter and finally forms a seal (no clearance remains between the ...

3. North American Fire Hose Coupler Incompatibilities - Wikipedia

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

   Garden Hose Thread first manufactured 1891 2 5/8, 2 3/4, 3, 3 + 1 ⁄ 2, 4, 4 + 1 ⁄ 2, 5, and 6 inches; all 8 tpi The National Association of Fire Engineers adopts a resolution calling for the use of 8 different diameters of couplings. 1898 Earliest effort by the NFPA to create fire hose coupling standards. [11] c.1901

4. Piping and plumbing fitting - Wikipedia

   en.wikipedia.org/wiki/Piping_and_plumbing_fitting

   Elbow 90° Male Coupling Bend 90° Male Thread Tee Male Union Male Coupling Male Straight Connector Elbow 90° Female Coupling Double Tap Connector 90/90 with Female Thread Elbow 90° Female Adapter Coupling Female Straight Connector Adapter Female Coupling (ISO 228) Female Coupling Tee Female Union Female 3-PC HFF Ball Valve Flange Coupling Cap

5. Storz - Wikipedia

   en.wikipedia.org/wiki/Storz

   The 100 mm (4-inch) and 125 mm (5-inch) Storz couplers have been specified in NFPA 1963, Standard for Fire Hose Connections, since the 1993 edition. U.S. cities that have fire hydrants with 125 mm Storz connectors include Raleigh, NC [ 5 ] and the City of Corvallis, OR (adapter on 4-inch threaded outlet).

6. Hose coupling - Wikipedia

   en.wikipedia.org/wiki/Hose_coupling

   This coupling is used by Spanish firefighters, and is defined by Spanish Standard UNE 23400. [15] It is a sexless coupling with three engaging lugs, and is available in several different sizes, including Barcelona 25 (25 mm hose ID), Barcelona 45 (45 mm hose ID), and Barcelona 70 (70 mm hose ID). Suitable for delivery (pressure) only, not suction.

7. Glossary of firefighting equipment - Wikipedia

   en.wikipedia.org/wiki/Glossary_of_firefighting...

   hose coupling for merging two streams into one, i.e., two female coupling inlets and one male coupling outlet. Skid unit A Skid unit or Slip-on is the common name used to refer to a self-contained fire fighting rig that includes hose, water tank, pump, and an engine to drive the pump, all mounted on a skid, designed to be slid into or onto the ...