Flexible Metal Braided Hose
The Flexible Metal Braided Hose is a corrugated stainless steel hose with external wire braid and flange, threaded, or swivel connections. It is used for oil, chemical, hydraulic, thermal, marine, and general industrial equipment connections.
Description
Flexible Metal Braided Hose
Product Overview
The Flexible Metal Braided Hose is a corrugated stainless steel hose with external wire braid and flange, threaded, or swivel connections. It is used for oil, chemical, hydraulic, thermal, marine, and general industrial equipment connections.
Core Advantages
1. Stable pressure response under pulsation. The braid restrains radial expansion and axial growth of the corrugated core. During hydraulic pulsation, pump vibration, or pressure surge, it reduces the risk of elongation, ballooning, and separation at the end fittings.
2. Durable metallic flow path. The corrugated core maintains a continuous pressure boundary and tolerates heat, low temperature, and compatible process media. It continues to flex with equipment movement without relying on an elastomer wall that ages over time.
3. Reduced equipment-nozzle loading. The flexible assembly takes up vibration and controlled offset at pumps, valves, and heat exchangers. Less assembly stress reaches rigid ports and adjoining pipework during repeated movement.
Key Parameters
|
Parameter |
Value |
|
Bellows Material |
316L Stainless Steel |
|
Braid Material |
304 Stainless Steel (1 to 3 Layers) |
|
Connector Types |
Flange / Thread / Swivel Joint |
|
Standards |
GB/T 14525, ASME B31.3, CE, ROHS |
|
Work Temperature |
-200℃ to 600℃ |
|
Max Pressure |
PN64 |
Customization Capabilities
- The assembly can use a 316L bellows with one, two, or three layers of 304 stainless braid, sized for the required diameter, active length, and pressure up to PN64.
- Connections can be configured as flanges, male or female threads, swivel joints, welded stubs, special-angle fittings, or drawing-based ends.
- Temperature, movement, fatigue cycles, and braid protection can be set for service from -200 to +600°C.
Quality Control
316L bellows material, 304 braid wire, corrugation dimensions, braid coverage, and end-fitting geometry are verified before final assembly. Argon-arc welds are inspected for complete fusion and surface defects. Every hose is tested for pressure resistance, air tightness, and fatigue performance. End alignment, braid termination, broken wires, and active length are checked before protective caps and packaging are fitted. Third-party inspection is accepted.
FAQ
Q: Can a custom sample be supplied?
A: Yes. A custom sample normally takes 15 to 20 days after the pressure, length, braid layers, and end fittings are approved.
Q: What is the production lead time?
A: Custom-made products normally require 40 to 50 days. Repeat orders are scheduled faster when the same materials and drawings are retained.
Q: Is the braid only an external protective cover?
A: No. The braid is a structural pressure reinforcement that restrains bellows growth and carries axial tensile load. It also provides secondary abrasion protection.
Q: Can the hose be supplied without braid?
A: Yes, an unbraided bellows can be produced for lower-pressure movement applications. High-pressure service uses the specified one, two, or three braid layers.
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