Metal ferrules

Al.l The low-range thermometer, which conforms also to the specifications of the cup thermometer in the Tag Closed Tester (ASTM Method D 56, Test for Flash Point by Tag Closed Tester) and which frequently is fitted with a metal ferrule intended to fit the collar on the lid of the Tag Flash Tester, can be supplemented by an adapter (Fig Al) to be used in the larger diam collar of the Fen sky-Martens apparatus. Differences in dimensions of these collars, which do not affect test results are a source of unnecessary trouble to manufacturers and suppliers of instruments, as well as to users... 

Sable pencil Sa-bol pen(t)-sol n. Fine pointed brushes of sable hair, set in quills, varying in size from lark s, through croVs, to duck s and goose s, or set in a metal ferrule. Used for decorative detail. Because of the high cost of sable, squirrel hair may be used instead. 

Early steel-cord belts sometimes contained cord joints using metal ferrules, whose stiffness led to flex failure in service. However, the standard joints used nowadays contain no metal-to-metal contact. They rely entirely on the shear stresses in the rubber, and the adhesion between the rubber and the metal, to transmit the tension through the joint. The... 

Phosphorized deoxidized arsenical copper (alloy 142 (23)) is used for heat exchangers and condenser tubes. Copper-arsenical leaded Muntz metal (alloy 366), Admiralty brass (alloy 443), naval brass (alloy 465), and aluminum brass (alloy 687), all find use in condensers, evaporators, ferrules, and heat exchanger and distillation tubes. The composition of these alloys is Hsted in Table 5. 

For inlet or outlet end erosion-corrosion, either extend tube ends 3 or 4 inches into the water box or install sleeves, inserts, or ferrules into the tube ends. These should be a minimum of 5 inches long. The ferrules may be nonmetallic or erosion-resistant metals, such as stainless steel, if galvanically compatible. The end of the ferrule should be feathered to prevent turbulence. 

Copper and its nonferrous metal alloys, bronze and brass, are used to manufacture tubing, ferrules, valves, and a variety of fittings. Although their use is somewhat limited in automotive fuel systems, they are found commonly throughout fuel storage and distribution systems. Copper steam coils and brass hardware may be utilized due to their excellent resistance to corrosion and high level of thermal conductivity. Described below are some of the more common alloys of copper and their applications ... 

Column—A metal tube in which the HPLC separation occurs, packed with porous packing held in place at each end by a fritted filter in an end-cap. End-caps are secured to the column with ferrules and can be opened for frit cleaning. 

The secondary reformer in an ammonia plant is a carbon steel vessel with a dual layer refractory lining. Internal temperatures reach -2,000°F (1,090°C) from burning as a result of air added through a burner at the top of the vessel to the feed gas (hydrogen, carbon monoxide, carbon dioxide, and steam). The burner is a refractory-lined device that is subject to failure if not carefully designed. Quench steam generators have refractory-lined inlet channels and tube sheets. Tubes are often made of carbon steel because the heat transfer from the steam on the outside of the tube is markedly better than that from the synthesis gas inside the tube. As a result, the metal temperature closely approaches the temperature of the steam. The inlet ends of the tubes are protected from the inlet gas by ferrules, usually made of type 310 (UNS S31000) SS with insulation between the ferrule and the tube. The tube material should be selected... 

All components are glass or metal except Teflon ferrules and stopcock plugs. 

Teflon front ferrules in Swagelok fittings provide leak free glass to copper seals and eliminate the need for more expensive and fragile Kovar or other metal to glass seals. 

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