Air Brake Tube Sae J844 Type A / Type B
CONSTRUCTION:
Type A โ Single-wall extruded Nylon (polyamide)
Type B โ Nylon (polyamide) core, fiber reinforcement, Nylon (polyamide) cover/sheath
Type Bโ Nylon (polyamide) core, muliply fiber reinforcement, Nylon (polyamide) cover/sheath
TEMPERATURE: -40ยฐC to +93ยฐC
Type A
| Code | Size | O.D | I.D | Wall Thickness | Bursting Pressure | Bend Radius | Weight | |
| inch | mm | mm | mm | psi | bar | mm | kg | |
| SAE J844-A-2 | 1/8" | 3.2 | 2 | 0.6 | 1000 | 69 | 9.4 | 1.51 |
| SAE J844-A-2.3 | 5/32" | 4 | 2.3 | 0.8 | 1200 | 82.7 | 12.7 | 2.54 |
| SAE J844-A-3 | 3/16" | 4.8 | 3 | 0.9 | 1200 | 82.7 | 19.1 | 3.43 |
| SAE J844-A-4 | 1/4" | 6.4 | 4.3 | 1 | 1200 | 82.7 | 25.4 | 5.4 |
| SAE J844-A-5 | 5/16" | 7.9 | 5.9 | 1 | 1000 | 69 | 31.8 | 3.49 |
TYPE-B
| Code | Size | O.D | I.D | Wall Thickness | Bursting Pressure | Bend Radius | Weight | |
| inch | mm | mm | mm | psi | bar | mm | kg | |
| SAE J844-B-6 | 3/8" | 9.5 | 6.4 | 1.6 | 1400 | 96.5 | 38.1 | 5.98 |
| SAE J844-B-9 | 1/2" | 12.7 | 9.6 | 1.6 | 950 | 65.5 | 50.8 | 8.67 |
| SAE J844-B-11 | 5/8" | 15.9 | 11.2 | 2.3 | 900 | 62.1 | 63.5 | 7.79 |
| SAE J844-B-14 | 3/4" | 19.1 | 14.4 | 2.3 | 800 | 55.2 | 76.2 | 9.56 |