Please Choose Your Language
The 1FLW-PM / 1FSW-PM Series SAE Flange Weld Tube is a precision hydraulic connection component used for welded tube assemblies in SAE flange systems. It provides a strong and stable connection between hydraulic pipelines and flange components, making it suitable for applications requiring high mechanical strength and reliable sealing.
The product consists of an SAE flange end with a straight weld tube section. The tube side can be welded directly with hydraulic pipes, while the flange side connects with SAE flange ports using bolts and sealing rings.
This series includes two pressure grades:
1FLW-PM Series: SAE 3000 PSI flange weld tube (Code 61)
1FSW-PM Series: SAE 6000 PSI flange weld tube (Code 62)
The 3000 PSI series is designed for medium-pressure hydraulic systems, while the 6000 PSI series provides higher pressure capability for heavy-duty hydraulic equipment.
Manufactured using high-quality carbon steel with precision machining, the flange weld tubes feature accurate dimensions, excellent fatigue resistance, and reliable performance under vibration and pressure fluctuations.
These products are widely used in hydraulic pumps, hydraulic valves, cylinders, construction machinery, industrial equipment, and mobile hydraulic systems.
NBFK provides standard SAE flange weld tubes as well as OEM customized solutions according to customer drawings and technical requirements.
Designed for SAE hydraulic flange systems
Available in SAE 3000 PSI and SAE 6000 PSI versions
Weld tube connection design
Compatible with SAE Code 61 and Code 62 flange systems
High mechanical strength
Precision-machined flange surface
Reliable sealing performance
Suitable for high-pressure hydraulic applications
OEM customization available
| Part No. | Flange Size | Tube (DX) | DIMENTION | Pressure (MPa) | |||
| d1 | D | I | L | ||||
| 3000 PSI | |||||||
| 1FLW-08-16X2PM | 1/2" | 16×2 | 30.2 | 16 | 6.8 | 41 | 34.5 |
| 1FLW-08-20X2.5PM | 1/2" | 20×2.5 | 20 | ||||
| 1FLW-12-25X3PM | 3/4" | 25×3 | 38.1 | 25 | 6.8 | 50 | |
| 1FLW-16-25X3PM | 1" | 25×3 | 44.4 | 25 | 8 | 50 | |
| 1FLW-16-28X3PM | 1" | 28×3 | 28 | ||||
| 1FLW-16-30X4PM | 1" | 30×4 | 30 | ||||
| 1FLW-16-38X5PM | 1" | 38×5 | 38 | ||||
| 1FLW-20-25X3PM | 1-1/4" | 25×3 | 50.8 | 25 | 8 | 55 | 27.6 |
| 1FLW-20-30X4PM | 1-1/4" | 30×4 | 30 | ||||
| 1FLW-20-38X5PM | 1-1/4" | 38×5 | 38 | ||||
| 1FLW-20-42X6PM | 1-1/4" | 42×6 | 42 | ||||
| 1FLW-24-38X4PM | 1-1/2" | 38×4 | 60.3 | 38 | 8 | 57 | 20.7 |
| 1FLW-24-42X5PM | 1-1/2" | 42×5 | 42 | ||||
| 1FLW-24-45X5PM | 1-1/2" | 45×5 | 45 | ||||
| 1FLW-24-50X6PM | 1-1/2" | 50×6 | 50 | ||||
| 1FLW-32-55X5PM | 2" | 55×5 | 71.4 | 55 | 9.6 | 57 | |
| 1FLW-32-60X8PM | 2" | 60×8 | 60 | ||||
| 1FLW-40-65X6PM | 2-1/2" | 65×6 | 84.1 | 65 | 9.6 | 58 | 17.2 |
| 1FLW-40-70X7.5PM | 2-1/2" | 70×7.5 | 70 | ||||
| 1FLW-48-80X6PM | 3" | 80×6 | 101.6 | 80 | 9.6 | 58 | 13.8 |
| 1FLW-48-90X8PM | 3" | 90×8 | 90 | ||||
| 6000 PSI | |||||||
| 1FSW-08-16X2PM | 1/2" | 16×2 | 31.7 | 16 | 7.8 | 34 | 40 |
| 1FSW-08-20X2.5PM | 1/2" | 20×2.5 | 20 | ||||
| 1FSW-12-16X2PM | 3/4" | 16×2 | 41.3 | 16 | 8.8 | 38 | |
| 1FSW-12-20X2.5PM | 3/4" | 20×2.5 | 20 | ||||
| 1FSW-12-25X3PM | 3/4" | 25×3 | 25 | ||||
| 1FSW-16-25X3PM | 1" | 25×3 | 47.6 | 25 | 9.5 | 40 | |
| 1FSW-16-30X4PM | 1" | 30×4 | 30 | ||||
| 1FSW-16-38X5PM | 1" | 38×5 | 38 | ||||
| 1FSW-20-25X3PM | 1-1/4" | 25×3 | 54 | 25 | 10.3 | 45 | |
| 1FSW-20-30X4PM | 1-1/4" | 30×4 | 30 | ||||
| 1FSW-20-38X5PM | 1-1/4" | 38×5 | 38 | ||||
| 1FSW-20-42X6PM | 1-1/4" | 42×6 | 42 | ||||
| 1FSW-24-38X4.5PM | 1-1/2" | 38×4.5 | 63.5 | 38 | 12.6 | 50 | |
| 1FSW-24-45X6.5PM | 1-1/2" | 45×6.5 | 45 | ||||
| 1FSW-24-48X8PM | 1-1/2" | 48×8 | 48 | ||||
| 1FSW-32-50X8PM | 2" | 50×8 | 79.4 | 50 | 12.6 | 58 | |
| 1FSW-32-60X10PM | 2" | 60×10 | 60 | ||||
The 1FLW-PM / 1FSW-PM Series SAE Flange Weld Tube is widely used in:
Hydraulic pumps
Hydraulic valves
Hydraulic cylinders
Hydraulic power units
Construction machinery
Agricultural equipment
Industrial hydraulic systems
Mobile hydraulic equipment
