Page 55 of Boston Tube and Pipe Fitting by Moreland Hose and Belting

selfalignŽ refer to safety information regarding proper selection of tubing and tube fittings on page 1 b a brass fittings thread size bbrass tube o.d thread size-b 1/8 5/16­24 3/16 3/8­24 1/4 7/16­24 5/16 1/2­24 3/8 9/16­24 7/16 5/8­24 1/2 5/8 3/4 1­18 1 1-1/4­18 11/16­20 13/16­18 ˇ typical application instrumentation hydraulic and pneumatic systems ˇ pressure working pressure up to 2000 psi with a 4:1 safety factor depending on tube size when using plastic tubing use the working pressure for type used ˇ vibration good resistance use long nut when greater vibration resistance is needed ˇ temperature range -65°f to +250°f 53°c to +121°c with metal tubing when using compatible plastic tubing do not exceed the tubing temperature range refer to tubing temperature range ˇ material ca360 brass ˇ used with aluminum copper and weatherhead plastic tubing plastic tubing except for pt230 requires 2030x insert not recommended for steel tubing see page 28-32 for material compatibility and pages 33-34 for plastic tubing ˇ advantages selfaligning no need to disassemble fitting to line up sleeve on tube low cost easy to assemble no flaring available with long or short nut broad selection of styles and sizes ˇ conformance an exclusive item with weatherhead user approvals only ˇ how to order selfalign fittings are ordered as complete assemblies body nut and sleeve to order assembly supplied with long nuts simply add the prefix 1 to the catalog number example 681x4 with long nut becomes 1681x4 nuts and sleeves can be ordered separately by catalog number to order bodies only less nut and sleeve prefix catalog number with the letter b and drop suffix number example b68x4 ˇ note refer to current price list for availability of cataloged items quotations and delivery of non-stock items supplied on request configurations and dimensions subject to change without notice ˇ assembly instructions 1 cut tubing to desired length 2 slide nut and then sleeve on tube threaded end of nut a and small end of sleeve b must face toward fitting 3 insert tubing into fitting body be sure tubing is bottomed on fitting shoulder 4 lubricate threads and assemble nut to fitting body 5 tighten with wrench to the ring grip point a ring grip is the point when the cutting edge of the sleeve grips the tube this is determined by turning tube slowly but firmly by hand while tightening the nut with a wrench until tube can no longer be turned by hand and a sharp increase in torque is noticed 6 tighten additional turns past ring grip as indicated on chart ref to page 45 label set cl-500 non-adhesive 53 boston weatherhead tm

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