API 7K Series - Ultra-Wear Resistant Acidizing & Hydraulic Fracturing Hoses
1. Product Overview
LETONE API 7K series hoses are high-performance solutions specifically engineered for oil & gas extraction, shale gas fracturing, and acidizing operations under extreme conditions. Compliant with API 7K standards, these hoses feature exceptional abrasion resistance, high-pressure endurance, and corrosion resistance, safely transporting abrasive media including fracturing fluids, acids, and drilling muds.
2. Construction & Technical Features
1. Multi-Layer Reinforced Structure
2. Key Specifications
3. Core Advantages
1. Extreme Condition Adaptability
- Patented rubber compound withstands pH 1-14 acids/alkalis
- Special reinforcement ensures 5,000+ pressure pulse cycles without failure
- Explosion-proof static design per API RP 500, Class I Division 2 safety rated
2. Extended Service Life
- 300% better wear resistance vs standard hoses; 800+ service hours with 20-40 mesh quartz sand
- UV & ozone-resistant cover extends outdoor lifespan by 50%
3. Safety & Reliability
- Certified to API 7K & API 16C standards
- Unique traceability code for full lifecycle quality control
- 4:1 burst safety factor exceeds industry 3:1 standard
4. Typical Applications
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5. LETONE Technology Assurance
1. Material Science: Custom rubber compounds from ExxonMobil
2. Manufacturing: German MAHLO real-time monitoring systems
3. Quality Systems: API Q1 + ISO 9001 dual certification
4. Testing Capabilities: 20,000 psi burst tester + acid immersion lab
6. Selection Guide
1. Pressure Rating:
- 5,000 psi: Standard fracturing
- 10,000 psi: Deep shale gas
- 15,000 psi: Ultra-deep wells
2. End Connections:
- Standard: API 16C quick-connect
- Options: Flanged, threaded, etc.
3. Customization:
- Special lengths (max 30m single piece)
- Arctic version (-60°C)
- Super wear-resistant (SiC coating option)
7. Maintenance Recommendations
1. Perform 1.5x working pressure test before use
2. Avoid tight coiling during storage
3. Flush with water after acid exposure
4. Professional inspection every 500 hours
LETONE API 7K hoses have been successfully deployed in Middle East oilfields, North American shale plays, and China's shale gas demonstration zones, accumulating over 2 million safe service hours. We offer 36-month warranties with on-site technical support and emergency replacement services.
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