Hongruntong Marine (Beijing) Co., Ltd
Strength in Every Pipe, Precision in Every Connection! Original Hose Pipe Factory!
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Industrial Grade Hose Corrosion Proof 316 Stainless Extreme Temp -196°C To + 600°C
Description
Our high-performance metal hose features a multi-ply corrugated core with dual-layer 316L stainless steel braiding, engineered to withstand operating pressures up to 1,000 bar (PN420). The helical reinforcement ensures pulse resistance exceeding 500,000 cycles (ISO 10380), making it ideal for hydraulic systems, high-pressure steam, and gas transmission.
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 |
Product Features
► Multi-Layer Reinforcement: 304/316L stainless steel with dual high-density braiding (Type 2B finish) withstands 1000 bar working pressure (4:1 burst ratio)
► Thermal Stability: Maintains mechanical properties from -269°C to +800°C (special Inconel versions to 1200°C)
► Pulse Resistance: Endures >500,000 pressure cycles at 25Hz (ISO 6803 fatigue tested)
► Thermal Expansion Compensation: Axial movement absorption ±15% length with 0.5N/mm² spring rate
Applications
► High-pressure hydraulic systems
► Steam transfer lines
► Chemical injection systems
► LNG cryogenic fluid transfer
Why Choose Hongruntong Marine?
Safety Innovations
Fail-safe locks: Positive mechanical interlocks
Static control: Carbon-loaded liners (<10⁶ Ω/m)
Fireproofing: Ceramic fiber jackets (1,000°C/2hr rating)
Cost Optimization
Lifecycle cost models: TCO analysis for ROI calculation
Modular designs: Field-replaceable components
Inventory management: VMI programs for OEMs
Environmental Compliance
RoHS/REACH: Full material declarations
Low-emission production: VOC-free processes
Recycling program: 95% material recovery
Continuous R D
Annual innovation: 15% revenue reinvested
University partnerships: Materials science R&D
Patents held: 30+ proprietary technologies
RFQ
1. What pressure ranges do your metal hoses cover?
We manufacture hoses for pressures from vacuum (10⁻⁸ Torr) to ultra-high pressure (1,500 bar/21,750 psi), with standard options covering PN16 to PN420 ratings.
2. What materials are available for corrosive applications?
Our standard 316L stainless steel handles most chemicals, while specialty options include Hastelloy C-276 for acids, Inconel 625 for caustics, and titanium for seawater service.
3. How do you ensure leak-free performance?
All critical welds are orbital TIG welded and 100% helium leak tested to 1×10⁻⁹ mbar·L/s, with metal-to-metal seals for extreme conditions.
4. What temperature limits can your hoses withstand?
Standard range: -269°C to +800°C. Special configurations with ceramic insulation or refractory metals reach 1,200°C continuous service.