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2. North American Fire Hose Coupler Incompatibilities - Wikipedia

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

   At its annual convention at Dallas, TX, the NFPA formally adopted a standard with 2 + 1 ⁄ 2-inch hose with 7.5 threads per inch as the primary standard, with additional sizes of 3 and 3.5 inches (each with 6 threads per inch) and a 4.5 inch coupling with 4 threads per inch, with the fire hydrant standard specifying one 4.5 inch port and two 2 ...

3. 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).

4. Hard suction hose - Wikipedia

   en.wikipedia.org/wiki/Hard_suction_hose

   5-inch (13 cm) flex suction hose with Storz fittings, mounted on an engine. Flexible suction hose (Flex suction or suction hose), not to be confused with hard suction hose in U.S., is a specific type of fire hose used in drafting operations, when a fire engine uses a vacuum to draw water from a portable water tank, pool, or other static water source.

5. Fire hose - Wikipedia

   en.wikipedia.org/wiki/Fire_hose

   Suction Hose. Suction hose is laid down on the suction side of pump (inlet) where the water passing through it is at a pressure either below or above that of the atmosphere. It is designed to resist internal and external pressure. It should have sufficient strength to withstand the pressure of external air when a vacuum has formed inside.

6. Hose coupling - Wikipedia

   en.wikipedia.org/wiki/Hose_coupling

   Norway uses NOR fittings for attack hoses. They come in three sizes: NOR 1 (83 or 84 mm; 2 + 1 ⁄ 2-inch), NOR 2 (65 or 66 mm; 2"), and NOR 3 (50 or 55 mm; 1 + 1 ⁄ 2-inch). NOR 2 is mostly used in the maritime and offshore oil industry.

7. Dixon Valve & Coupling Company - Wikipedia

   en.wikipedia.org/wiki/Dixon_Valve_&_Coupling_Company

   Dixon Valve & Coupling Company, LLC [1] is a manufacturer and supplier of hose fittings and accessories. The company, often referred to as just Dixon, offers products for fire protection, food processing, dairy processing, beverage and brewery operations, industrial manufacturing, mining, construction, chemical processing, petroleum processing and refining, oilfields, mobile tankers and ...