TO CONNECT TUBE:
Cut plastic as squarely as possible. Insert tube
into fitting until friction is felt as tube slides past
the O-ring. Using a slight twisting motion while
inserting the tube is often helpful. After this initial
friction is felt, continue to push in the tube until it
bottoms firmly against the internal tube stop.
TO DISCONNECT TUBE:
With thumb and forefinger, hold down the top
of the insert against the fitting body and then,
with the other hand, pull out the tubing.
No tools are needed.
SPECIFICATIONS
• STANDARDS: D.O.T. FMVSS 571.106 Air Brake Performance Requirements
SAE J1131 Air Brake Performance Requirements.
• MATERIALS OF CONSTRUCTION:
– Body (straights) tube supports and grippers: Brass CA360.
– Forged Elbows and Tees: Brass CA377.
– "O" Ring: Buna N, alternate compounds on request.
– Thread Sealant: Loctite 516.
• WORKING PRESSURE: Vacuum to 150 PSI.
• WORKING TEMPERATURE: -40 F to +200 F.
• THREADS: NPTF Standard. For other thread standards consult factory.
• TUBE "OD" SIZES: 5/32", 3/16", 1/4", 3/8", 1/2", 5/8", (3/4" available early
1998).
For Metric sizes consult factory.
• SWIVEL ELBOWS AND TEES: Designed for alignment purposes only.
• TUBING REQUIREMENTS: Designed for use with SAE J844 Nylon Tubing.
• CAD DATA: Available on request in .DWG and .DXF formats.
PRODUCT FEATURES
• POSITIVE SEAL: Tube support area beyond "O" ring exceeds that of all competitive
products. Compensates for bias cut tubing and dramatically reduces trouble shooting time.
• SWIVEL AND FIXED ELBOWS AND TEES: Threaded tees and elbows available
with
swivel or fixed threads. Swivels allow close center line installation eliminating
orientation problems. Fixed fittings offer the utmost in economy.
• THREAD SEALANT: Pre-applied at no charge to all QW-DOT male threads.
• LABOR SAVINGS: Reduces assembly time compared to compression fittings by up to
90%.
• CUSTOM DESIGNS: Alkon offers custom parts on short notice and
welcomes these opportunities
 | CATALOG | TUBE | PIPE |
NUMBER | O.D | THREAD | |
1572S-DOT-4A | 1/4" | 1/8 | |
1572S-DOT-4B | 1/4" | 1/4 | |
1572S-DOT-6A | 3/8" | 1/8 | |
1572S-DOT-6B | 3/8" | 1/4 | |
1572S-DOT-6C | 3/8" | 3/8 | |
1572S-DOT-8B | 1/2" | 1/4 | |
1572S-DOT-8C | 1/2" | 3/8 | |
1572S-DOT-8D | 1/2" | 1/2 |
