HAINAR Double Ferrule Compression Fittings: High-Reliability Solutions for Industrial Fluid Systems

In the complex landscape of industrial fluid transmission, the demand for secure, durable, and easy-to-maintain connections is paramount. HAINAR, a leader in fluid system components, introduces its Double Ferrule Compression Fittings—a versatile solution engineered to meet the rigorous requirements of instrumentation, hydraulics, semiconductors, environmental protection, and pneumatic systems. Designed for 1/16″ to 2″ (2mm to 50mm) tubing, these fittings redefine reliability with exceptional sealing performance, vibration resistance, and hassle-free installation.

Core Advantages: Precision, Versatility, and Durability

1. Wide Size Compatibility

   Covering both imperial (1/16″, 1/8″, 1/4″, up to 2″) and metric (2mm, 4mm, 6mm, up to 50mm) tubing, the fittings eliminate the need for custom adapters, simplifying inventory management for OEMs and end-users alike.

2. Tool-Free Installation & Reusability

   The dual-ferrule structure (front ferrule for sealing, rear ferrule for gripping) enables mechanical bite-type sealing. Unlike single-ferrule or flange fittings, no welding or specialized tools are required—installation time is reduced by over 50%. Crucially, the fittings can be disassembled and re-tightened multiple times without compromising sealing integrity.

3. Diverse Material & Seal Options

   To suit varied media and environments, HAINAR offers materials including 304/316 stainless steel, brass, Hastelloy, and Monel. Seal types range from metal-to-metal (for high-temperature, high-pressure scenarios) to PTFE/EPDM gaskets (for corrosion resistance), ensuring compatibility with water, steam, acids, and cryogenic fluids.

4. Exceptional Performance Metrics

   With a maximum pressure rating of 10,000 psi (690 bar) and superior vibration resistance, the fittings excel in harsh conditions—from hydraulic presses in waste treatment plants to high-vibration engine systems.

Comprehensive Product Range for Every Layout

• Straight fittings for linear connections
• 90° and 45° elbows for space-constrained layouts
• Tee and cross fittings for multi-port branching
• Tube-to-tube adapters for seamless size transitions

Industry-Specific Applications: Solving Unique Challenges

• Environmental Protection Equipment: Ideal for hydraulic systems in waste compactors (high-pressure resistance) and biogas pipelines (316L stainless steel resists H₂S corrosion). They also ensure leak-free sampling in CEMS (Continuous Emission Monitoring Systems).
• Petrochemicals: Hastelloy fittings withstand acidic media in high-temperature reactors, while cryogenic-grade options maintain sealing at -200℃ for LNG transfer.
• Semiconductor & Pharmaceutical: Pollution-free designs and FDA-certified materials make the fittings suitable for ultra-pure gas/liquid transmission in cleanrooms and CVD (Chemical Vapor Deposition) equipment.

Expert Sizing Guide for Optimal Performance

1. Material Selection: 304 stainless steel for water/steam; 316L for seawater/alkalis; Hastelloy C276 for strong acids (sulfuric, hydrochloric); nickel-plated stainless steel for high-temperature oils.
2. Pressure Rating: Standard models for <1000 psi; high-pressure reinforced models for 1000–6000 psi; ultra-high-pressure metal-seal models for >6000 psi.
3. Installation Tips: Use a dedicated tube cutter for burr-free cuts; apply torque wrenches to control preload; conduct air-tight or hydraulic tests post-installation.