PTFE Lining Stainless Steel Wire Braided Corrugated Metal Flex Tube
This high-performance flexible hose combines a PTFE inner lining with a corrugated stainless steel hose and external stainless steel wire braid. The PTFE liner provides excellent chemical resistance, low friction, and high temperature stability, while the corrugated stainless steel structure ensures flexibility and pressure resistance. The outer stainless steel braid enhances mechanical strength and protects against vibration, fatigue, and external damage. This product is widely used in chemical, petrochemical, pharmaceutical, food, and high-purity fluid transfer systems.
Performance Characteristics
The main elastic element of flexible expansion joints is stainless steel bellows. Through the expansion and bending of bellows, the flexible expansion joint accommodates pipeline movement in axial, transverse, and angular directions.
- Absorbs axial, transverse, and angular thermal deformation of pipelines
- Reduces equipment vibration impact on pipeline systems
- Compensates for pipeline deformation caused by seismic activity and ground settlement
Technical Specifications
Metal Hose Main Data
| Diameter (mm) |
Pressure Grade (MPa) |
Available Area of Bellows (cm²) |
Max External Diameter (mm) |
Length (mm) |
| 32 | 1.0/1.6/2.5 | 16 | 225 | 160-280 |
| 40 | 1.0/1.6/2.5 | 23 | 244 | 164-289 |
| 50 | 1.0/1.6/2.5 | 37 | 259 | 172-306 |
| 65 | 1.0/1.6/2.5 | 55 | 270 | 215-322 |
| 80 | 1.0/1.6/2.5 | 81 | 284 | 240-366 |
| 100 | 1.0/1.6/2.5 | 121 | 304 | 235-345 |
| 125 | 1.0/1.6/2.5 | 180 | 334 | 282-342 |
| 150 | 1.0/1.6/2.5 | 257 | 364 | 282-367 |
| 200 | 1.0/1.6/2.5 | 479 | 442 | 340-426 |
| 250 | 1.0/1.6/2.5 | 769 | 507 | 393-493 |
| 300 | 1.0/1.6/2.5 | 1105 | 562 | 464-565 |
| 350 | 1.0/1.6/2.5 | 1307 | 622 | 509-609 |
| 400 | 1.0/1.6/2.5 | 1611 | 562 | 522-622 |
| 450 | 1.0/1.6/2.5 | 1972 | 700 | 403-523 |
| 500 | 1.0/1.6/2.5 | 2445 | 760 | 431-554 |
| 600 | 1.0/1.6/2.5 | 3534 | 835 | 478-588 |
| 700 | 1.0/1.6/2.5 | 4717 | 1110 | 490-590 |
| 800 | 1.0/1.6/2.5 | 5822 | 1265 | 502-602 |
| 900 | 1.0/1.6/2.5 | 7620 | 1186 | 698 |
| 1000 | 1.0/1.6/2.5 | 9043 | 1286 | 692 |
Product Construction Details
Metal Flex Tubes can be customized according to specific requirements:
- Bellows Material: Stainless Steel 304, 316L
- Flange Materials: Q235 carbon steel, 304, 316L stainless steel
Jingning has over 17 years of design experience in manufacturing flexible expansion joints, rubber expansion joints, metal bellows joints, disassembly joints, and other industrial pipe fittings. Our flexible expansion joints meet international standards including GB, ISO, DIN, ANSI, BS, JIS and custom requirements.
Key Advantages
- Competitive factory-direct pricing
- 17 years manufacturing experience with 5 years export expertise
- Rigorous quality inspection exceeding industry standards
- Custom mold base customization and OEM services
- Free flex hose pipe samples available
- Large inventory for immediate availability
Applications
Due to their flexibility, these flex hose pipes compensate for temperature differential deformation and other movements between equipment and pipelines, prevent vibration, reduce pipeline thrust on equipment, and accommodate uneven tank foundation settlement. Flexible expansion joints are widely used in chemical, oil refining, power generation, light industry, nuclear energy, metallurgy, machinery, instrumentation, marine, and aerospace applications. With increasing use of power and heat pipelines in industrial and civil sectors, demand for high-quality flex hose pipes continues to grow.
Frequently Asked Questions
Q: Can the Metal Flex Tube be marked with customized logo?
A: Yes, we can mark it with your logo. We provide OEM & ODM services.
Q: What's the face to face length of Metal Flex Tube?
A: Standard face to face lengths include L130, L152, L203. We also accept custom lengths according to your requirements.
Q: Can you provide drawings of Metal Flex Tube?
A: Yes, we provide detailed drawings. Please contact us to receive the pipe metal flexible tube drawings.
Q: What certificates can you provide for Metal Flex Tube?
A: We provide CE and ISO certifications.
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