Page 45 of Fittings by Fast Fittings

brass fittings sae 45° flare sae 450 flare a a thread size threadsize b b tube o.d thread size-b 1/8 5/16-24 3/16 3/8-24 1/4 7/16-20 5/16 1/2-20 3/8 5/8-18 7/16 11/16-16 1/2 3/4-16 5/8 7/8-14 3/4 1-1/16-14 ·typical application lp and natural gas flammable liquids instrumentation refrigeration power steering hydraulic and pneumatic systems ·working pressure ranges temperature and type of tubing used are important factors however the following table is a good guide for proper selection temperature 730f with copper tubing ·used with copper brass aluminum and steel hydraulic tubing that can be flared · tolerance .03 on all dimensions dimension data can change without notice please call us when dimensions are critical ·conformance meets specifications and standards of asa asme sae and ms military standards assembly instructions 1 cut tubing to desired length make sure all burrs are removed and ends are cut square 2 slide nut on tube threaded end a of nut must face out 3 flare end of tube with a 450 flaring tool a-measure flare diameter b examine flare for excessive thin out 4 lubricate threads and assemble to fitting body nut should be turned hand tight 5 tighten assembly with wrench until a solid feeling is encountered from that point apply a one-sixth turn note do not over-torque as it may damage the fitting or split the tubing at the flare psi 2800 1900 1400 1200 1000 750 650 550 450 tube o.d in 1/8 3/16 1/4 5/16 3/8 1/2 5/8 3/4 7/8 tube wall in .030 .030 .030 .032 .032 .032 .035 .035 .035 ·vibration good resistance use long nut when greater vibration resistance is required ·temperature range -650f to +2500f 530c to +1210c range at maximum operating pressures ·material ca360 brass for barstock fittings ca377 brass for forged fittings actual o.d of flare fittings 45 brass

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