1. Product Overview

The Asbestos Covered Metal Hose Assembly is a dedicated flexible piping solution developed for extreme working conditions in metallurgy, power, chemical, and other industries. Built on a stainless steel metal hose, it is wrapped with a high-density asbestos insulation layer, forming a three-layer protection structure: “inner pressure resistance, middle reinforcement, and outer heat insulation”. This perfectly solves the pain points of traditional metal hoses in high-temperature, open flame, and thermal radiation environments, such as easy aging, scalding, and damage, while retaining the excellent flexible compensation, vibration and noise reduction, and displacement correction performance of metal hoses. It is an ideal choice for fluid transmission and pipeline compensation in high-temperature and high-risk working conditions.

2. Structure & Core Materials

• Inner Layer: Stainless Steel Corrugated Tube

   

  Made of 304/316L stainless steel with precision hydraulic corrugation molding, it offers good flexibility and small bending radius. It can effectively absorb axial, lateral, and angular displacements of pipelines, buffer equipment vibration and noise, and has high fatigue resistance, remaining undeformed and unbroken after repeated bending.

• Middle Layer: Stainless Steel Wire Braided Reinforcement

   

  Densely woven stainless steel wires greatly enhance the hose’s tensile, pressure, and impact resistance, protecting the inner tube from external stretching, wear, and extrusion damage. It does not bulge, unweave, or break under long-term high pressure.

• Outer Layer: High-Density Asbestos Covering

   

  Made of flame-retardant and high-temperature resistant asbestos material, it provides excellent heat insulation, fire resistance, and anti-scald protection. It can effectively isolate high-temperature radiation and open flame splashes up to 450℃, preventing scalding and aging of the hose body. It also has wear-resistant and anti-corrosion properties, extending the service life of the hose.

3. Core Technical Parameters

• Working Media: Water, air, steam, industrial fluids, inert gases, and various other fluid media
• Working Temperature: -145℃ ~ +450℃ (stable performance under high-low temperature alternating environments)
• Working Pressure: 0.6MPa – 32MPa (customizable pressure rating according to working conditions)
• Nominal Diameter: DN6, DN10, DN15, DN20, DN25, DN32, DN40, DN50, DN65, DN80, DN100, DN125 (full size coverage)
• Main Material: 304 Stainless Steel (General Type), 316L Stainless Steel (Corrosion Resistant Type) optional
• Connection Type: Flange connection, threaded connection, quick coupling, welded connection, and other forms available
• Customization Service: Non-standard length, special pressure rating, special-shaped joints, and special calibers can be customized.

4. Core Performance Advantages

• Extreme Temperature Resistance & Safe Insulation: No cracking at -145℃ ultra-low temperature, no softening or aging at +450℃ high temperature. The asbestos outer layer effectively isolates high-temperature radiation and open flames, preventing scalding and hose damage.
• Three-Layer Protection & Durability: Triple protection of stainless steel inner tube, steel wire braided layer, and asbestos outer layer, providing pressure and explosion resistance, wear and corrosion resistance, with a service life far exceeding that of ordinary metal hoses.
• Flexible Compensation & Vibration/Noise Reduction: The corrugated structure can be bent freely, effectively offsetting pipeline thermal expansion and contraction deformation, absorbing equipment vibration, and reducing pipeline operation noise.
• Multi-Media Compatibility & Leak-Proof Sealing: Suitable for transmission of various fluid media, with precisely welded joints and special seals to achieve long-term stable zero leakage.
• In-Stock Full Sizes & Customization: Sufficient stock of standard specifications, fast customization of non-standard sizes to meet the supporting needs of different equipment and working conditions.

5. Main Application Scenarios

• Metallurgical Industry: Intermediate frequency furnace water-cooled cable supporting, high-temperature furnace body cooling pipelines, high-temperature fluid transmission in steelmaking workshops
• Power Industry: Power plant boiler supporting pipelines, steam turbine flexible connections, high-temperature steam transmission pipelines
• Chemical Industry: High-temperature reactor connections, corrosive fluid transmission, chemical equipment flexible compensation
• Industrial High-Temperature Scenarios: Boiler, oven, heat treatment equipment supporting, high-temperature flue gas/steam transmission pipelines
• Others: Construction machinery high-temperature hydraulic pipelines, welding workshop anti-scald pipelines, outdoor high-temperature operation pipeline systems

6. Quality Assurance & Supply Advantages

• All products are produced with national standard stainless steel raw materials, strictly tested for pressure resistance, sealing, and high-low temperature impact to eliminate leakage risks.
• Direct factory sales with sufficient stock of standard specifications, ready for shipment upon order to avoid delays in equipment assembly and maintenance.
• Support bulk customization and OEM services, providing exclusive solutions according to customer drawings or working conditions.
• Complete after-sales support system, providing technical support and installation guidance for worry-free procurement.