Brass Compression Fittings

Brass Compression Fittings

ATFIT compression fittings provide users with an economical choice with numerous connection options for a wide variety of tube materials without the need for flaring, soldering or other tube preparation necessary to assemble.

Compatible with:

• Copper tube
• Brass tube
• Aluminium tube
• Plastic tube (with insert)

Note: Not recommended for steel tubing.

Assembly instructions

1. Cut the tube square and deburr.
2. Slide the nut and sleeve onto the tube.
3. Add insert if using a plastic tube.
4. Shoulder the tube in the fitting and hand-tighten the nut onto the fitting.
5. Lubricate the thread and assembly nut to the fitting body.
6. Wrench tighten past hand-tight (1 ¼ turns for 1/8” to ¼”, 2 ¼ turns for 1”).

Material specification:

• Free cutting IS-319/CZ-121
• CA360 Brass for bar stock fittings
• CA377 Brass for forged fittings
• Lead free, DZR, bronze, etc and other special copper alloys as per customer specifications.

Threads:

• UNFE, BSPT, BSP, NPT, and any special threads as per customer specifications.

Pressure:

• Working pressure up to 2000 PSI with a 4:1 safety factor, depending on tube size.

Vibration:

• Fair resistance. Use a long nut for greater vibration resistance.

Temperature range:

• -65° F to + 250°F (-53°C to 121°C) range at maximum operating pressure. (Refer to tubing temperature range.)

Advantage:

• Low cost
• No tube flaring necessary

Typical Application:

• Instrumentation
• Hydraulic systems
• Pneumatic systems

Finish & Coating:

• Natural brass
• Nickel plated
• Tin plated
• Any special plating as per customer requirements

Standards:

• Confirming SAE, ASA, and ASME specifications

Union Tee

Male Run Tee

Brass Sleeve

Standard Nut