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Fred A. Lennon and Cullen B. Crawford founded Crawford Fitting Company in Cleveland, Ohio, in July 1947 to manufacture the Swagelok tube fitting, which used a two-ferrule design to “swage” or form the tube and lock it into place. One year later, Lennon bought out Crawford and continued to grow the business.
Lokring designs patented, [4] weld equivalent pipe and tube fittings such as couplings, flanges, elbows, adapters, and more. The unique technology of the patented [ 4 ] Lokring fittings utilize "Elastic Strain Preload" [ 5 ] (ESP), and possesses a metal to metal leak-free seal that compresses or swages the pipe/tube wall.
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Founded in 1899 by Franz Viegener, [1] Viega sold brass beer taps and moved into home plumbing products by 1901. In 1999 Viega started its North American operations headquartered in Wichita, Kansas with an Educational Facility in Nashua, New Hampshire opened in 2006 along with a plant in McPherson, Kansas in 2008 and Reno, Nevada in 2006.
A compression fitting 15 mm isolating valve. A compression fitting is a fitting used in plumbing and electrical conduit systems to join two tubes or thin-walled pipes together. . In instances where two pipes made of dissimilar materials are to be joined (most commonly PVC and copper), the fittings will be made of one or more compatible materials appropriate for the connect
Real-time locating systems (RTLS), also known as real-time tracking systems, are used to automatically identify and track the location of objects or people in real time, usually within a building or other contained area.
These fittings or special-service variants may also be found in hydraulic applications and alternative compressed gas applications (Oxy-acetylene welding and cutting, fuel gases, NSF C-2 food-contact, etc.).
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 ...