• Fittings for Tube to Male Pipe, Tube to Female Pipe, Tube to Tube Unions, Port Connectors, Tube to Welded Systems and Components.
Ordering CPI™/A-LOK® Tube Fittings
Body Shape: A letter or combination of letters and numbers are used to designate the type of fitting for body designator. (i.e. SBZ or MBT = male branch tee, GBZ or FA = female adapter, etc.) See proceeding pages for fitting types codes. May also be referred to as Body, Style or Shape.
Port Size: Tube and pipe thread sizes are designed by the number of sixteenths of an inch (1/2” tube = 8/16” = 8) (1/4” pipe thread = 4/16” = 4). See Tube End Dimensional Data table for Size designators. Proceeding product pages list sizes for fitting types.
Fractional Tees & Crosses: For drop size tees – first size the run (1 to 2) and then branch (3). Example – the size designator for a male run tee for 3/8” O.D. tube and 1/4” male pipe thread would be 6-4-6. For crosses – first size the run (1 to 2) and then the branch (3 to 4). For tees with all ends the same, use the tube and size before and after the style designator; i.e. 4-4-4 JBZ (CPI™), 4ET4 (A-LOK®).
Sealing: BSP Taper threads require the use of a thread sealant. BSPP threads require a sealing washer. This washer may either be a metal gasket (copper is standard) or a “bonded seal” (elastomer bonded to a metal retaining washer). The BSPP, form “A” requires the use of a bonded seal. The BSPP, form “B” (cutting face) may be used with or without a sealing washer. For applications where the cutting face may not seal or where galling is a potential problem, the use of a washer is suggested.
Examples: The Thread Type Designators have been bolded in the following examples for easy recognition:
Options: See the Options table for available options and designators. After the complete CPI™/A-LOK® number simply add a “dash” then the suffix for the option.
Special Fittings: Consult the factory. If there is any question as to the fitting desired, particularly for special fitting configurations, it is suggested that a customer print be submitted.