10-20 mm Hydraulic Pipe Spiral Guard Custom Lengths Excellent Fatigue Resistance
Product Advantages Features
Hongruntong Marine’s 4SP high-pressure hydraulic hose is engineered for extreme durability in marine and offshore applications. Featuring four-layer high-tensile steel wire reinforcement, it delivers superior burst resistance (up to 85 MPa static pressure) while maintaining flexibility for easy routing in tight spaces. The oil-resistant synthetic rubber inner tube ensures long-term compatibility with mineral-based and biodegradable hydraulic fluids, while the abrasion- and UV-resistant outer cover withstands harsh saltwater environments.
Key Benefits
► Ultra-high pressure resistance – Ideal for shipboard hydraulic systems, winches, and heavy-duty offshore equipment.
► Superior corrosion resistance – Specially formulated rubber resists seawater, ozone, and chemical exposure.
► Long service life – Exceeds 500,000+ pulse cycles (ISO 6803 certified).
► Global compliance – Meets EN 853, SAE 100R12, and DNV-GL marine standards.
specifications
| Place of Origin | Beijing, China |
| Brand | Hongruntong Marine |
| Type | HMHOH |
| Processing Service | Cutting, Crimping, Assembly |
| Material | Grade A++ Natural Rubber, Imported |
| Tube | Oil Resistant Synthetic Rubber |
| Reinforcement | 1-4 Layers Spirals of High Tensile Steel Wire |
| Cover | Abrasion and Weather Resistant Synthetic Rubber |
| Temperature Range | -40 deg C to +120 deg C |
| Size | From 5mm to 51mm or As Request |
| Length | Customized Length |
| Logo | Customized Logo Availabled |
| Application | Industrial |
| Model | I.D | O.D | W.P | B.P | B.R |
| mm | inch | min | max | mpa | mpa | mm |
| HMHOH-5 | 5 | 3/16 | 11.1 | 13 | 25 | 50 | 100 |
| HMMOH-6.3 | 6.3 | 1/4 | 12.7 | 14 | 22.5 | 45 | 90 |
| HMMOH-8 | 8 | 5/16 | 14.3 | 16 | 21.5 | 43 | 86 |
| HMMOH-10 | 10 | 3/8 | 16.7 | 18 | 18 | 36 | 72 |
| HMMOH-12.5 | 12.5 | 1/2 | 19.8 | 21 | 16 | 32 | 64 |
| HMMOH-16 | 16 | 5/8 | 22.9 | 25 | 13 | 26 | 52 |
| HMMOH-19 | 19 | 3/4 | 26.9 | 29 | 10.5 | 21 | 42 |
| HMMOH-25 | 25 | 1 | 34.6 | 37 | 8.8 | 17.6 | 35.2 |
| HMMOH-31.5 | 31.5 | 1-1/4 | 42.2 | 45 | 6.3 | 12.6 | 25.2 |
| HMMOH-38 | 38 | 1-1/2 | 49.1 | 52 | 5 | 10 | 20 |
| HMMOH-51 | 51 | 2 | 62.5 | 66 | 4 | 8 | 16 |
Why Choose Hongruntong Marine Hydraulic Oil Hoses?
► Structural Design
Corrosion resistant stainless steel wire braid + thermoplastic barrier layer for deep-water applications.
► Performance
69 MPa rating, tested to 10,000m depth. Resistant to seawater, H₂S, and microbial growth.
► Fluid Compatibility
Synthetic seawater-resistant fluids, oil-in-water emulsions.
► Environmental Suitability
Certified for offshore oil/gas (API 17K, NORSOK).
Applications
► Hydroelectric Plant Controls - Large-bore, high-pressure fluid transfer
► Injection Molding Machines - High-cycle, temperature-resistant hoses
► Steel Mill Equipment - Heat-resistant hydraulic solutions
► Automated Production Lines - Flexible, high-precision hydraulic connections
FAQ
1. What standards do hydraulic hoses comply with?
Common standards include SAE, ISO 18752, EN 853–857, and DIN specifications.
2. What is the shelf life of a hydraulic hose?
Typically 5–10 years when stored in proper conditions—cool, dry, and away from sunlight.
3. Can hydraulic hoses be reused?
Hose assemblies should not be reused. Only certain fittings are designed to be reusable.
4. How are hydraulic hoses tested?
They undergo pressure testing, burst tests, impulse cycle testing, and leakage inspection.
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