Stainless Steel Hose Barb Fitting

Secure Hose Retention for Industrial Fluid Circuits

The stainless steel hose barb fitting connects flexible tubing to threaded ports in pneumatic equipment, low-pressure hydraulic units and industrial fluid systems. Its one-piece SUS304 body combines an external thread, hexagonal wrench section and multi-stage hose barb, reducing the number of separate sealing and fastening components within the connection.

Precision CNC turning controls the thread profile, barb diameter, sealing shoulder and internal flow passage from a shared datum. Key dimensions can reach ±0.01 mm when the thread standard, component size and inspection method support the specified tolerance. A consistent thread form helps the fitting engage correctly with valves, manifolds and equipment ports, while the machined sealing area supports washers, thread sealants or other specified sealing methods.

Stepped Barb Geometry for Firm Hose Engagement

Each barb stage creates a gradual interference fit as the hose moves onto the connector. The raised edges resist pull-off forces, while the stepped profile distributes grip along a wider section of tubing. This design suits rubber and compatible plastic hoses used for compressed air, water, cleaning fluids and other approved media.

The integrated hexagonal section provides a stable wrench surface during installation. It allows controlled tightening without gripping or damaging the hose connection area. Smooth internal transitions help limit flow restriction, and precision deburring removes sharp edges that could cut the hose lining or release metal particles into the circuit.

SUS304 stainless steel withstands moisture, oxidation and contact with many weak acids and alkalis. Surface polishing can reduce machining marks and support cleaning requirements in food-processing, laboratory or medical-fluid equipment.

Core Advantages

• Powerful Corrosion Resistance: SUS304 stainless steel raw material resists rust, oxidation and weak acid & alkali liquid erosion, suitable for wet, humid and chemical fluid working environments.
• Zero-Leak Sealing Performance: Precision CNC machined thread and barb structure perfectly match standard hoses and pipe nuts, effectively avoiding gas or liquid leakage under working pressure.
• Easy & Fast Assembly: Integrated hexagonal wrench surface for convenient tightening without slipping; stepped barb design locks rubber/plastic hoses tightly for quick plug-and-play installation.
• High Pressure Resistance & Durability: Integrated one-piece turning structure with no assembly gaps, capable of sustaining stable high fluid pressure, resisting cracking and deformation during long-term repeated disassembly.
• Fully Customizable Non-standard Sizes: Custom thread standards, thread diameters, barb outer diameters and overall lengths available to match all kinds of pneumatic and hydraulic pipeline layout requirements.

Common Applications

Inspection can include thread gauging, barb diameter, bore size, sealing-face condition and overall length. The finished stainless steel hose barb fitting may also undergo visual, assembly and pressure-related checks to confirm hose retention and connection stability before packing.

Specification Table