Hongruntong Marine (Beijing) Co., Ltd
Strength in Every Pipe, Precision in Every Connection! Original Hose Pipe Factory!
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Adjustable Metal Tube High Pressure Multi Layer Steel Braid Burst Safety
Description
Designed for vibration damping and thermal expansion compensation, our flexible metal hose features precision-welded convolutions with low springback force, allowing tight-radius bending (3x OD) without kinking. The electropolished inner surface (Ra ≤ 0.8µm) ensures zero contamination for semiconductor, pharmaceutical, and ultra-high-purity (UHP) gas systems.
Specifications
| Place of Origin | Beijing, China |
| Brand Name | Hongruntong Marine |
| Hose Type | Flexible Metal Hose |
| Tube | AISI 316 L / 304 / T321 |
| Reinforcement | 1-2 Layers Stainless Steel Braid Aisi 304 |
| Diameter | Available from 1/4" (6 mm) up to 16" (400mm) |
| Work Pressure | -250°C to +550°C |
| Electrical Properties | Can be used in ATEX zones |
| Couplings | Made to Order With All Types Of Stainless Steel Fittings |
Key Features
► Electropolished Interior: Ra ≤ 0.4μm surface finish prevents particulate adhesion (SEMI F57 compliant)
► Galvanic Isolation: Dielectric breaks prevent electrolytic corrosion in mixed-metal systems
► Abrasion-Resistant Liners: Alumina ceramic (90% Al₂O₃) or tungsten carbide coatings for slurry applications
► Chemical Compatibility: Resists 98% sulfuric acid (20°C) and 50% NaOH (93°C) per ASTM G31 testing
Applications
► Petrochemical refining
► Offshore oil gas production
► Slurry abrasive media handling
► Exhaust gas systems
Why Choose Hongruntong Marine?
Global Compliance
International approvals: CE, CRN, GOST, AS/NZS, KGS
Material certs: NACE MR0175, NORSOK M-650
Welder qualifications: EN 287-1, AWS D17.1
Rapid Delivery Network
Stock program: 5,000+ standard hoses ready-to-ship
Express production: 7-day lead time for custom orders
Global logistics: DDP shipping to 60+ countries
Lifetime Support
Field service teams: Installation supervision worldwide
Reconditioning program: 50% cost vs. new hose
Technical hotline: 24/7 engineer support
Testing Validation
In-house lab: Helium leak test, FTIR, metallography
Performance testing: Cyclic fatigue, flow efficiency, EMI shielding
Documentation: Full test reports with traceable data
RFQ
1. Do you offer certified explosion-proof hoses?
Yes, our ATEX/IECEx Zone 0 certified hoses feature conductive liners (<10⁶ Ω/m) and flame-arresting construction per ISO 16852.
2. What's your minimum bending radius?
Depending on design, we achieve 3x hose diameter for static applications and 5x diameter for dynamic service - 30% tighter than industry averages.
3. How do you prevent hose failure from vibration?
Our proprietary braid patterns provide 82% vibration damping (ISO 10846-3 verified) with stainless steel wire optimized for fatigue resistance.
4. Can you make FDA-compliant hoses?
Our 316L-ELC sanitary hoses meet FDA 21 CFR 177.2600 with electropolished (Ra≤0.25μm) interiors and drainable tri-clamp connections.