NEWS

I.Core Differences and Selection Suggestions:
① One-Piece Fitting: It is an inseparable unit. A dedicated crimping machine presses the fitting jacket to the hose, creating a one-time, permanent connection.

Advantages: Compact and lightweight; excellent vibration and pulse resistance, high reliability; fewer leak points; and typically higher pressure ratings.

Typical applications: High-pressure main oil lines in construction machinery (excavators and loaders), frequently moving hydraulic arms, and long-term stationary installations requiring no disassembly. It is the preferred choice for applications requiring ultimate reliability.

② Reusable Fitting: This type of fitting typically consists of multiple parts. These parts are squeezed against the hose by tightening with a wrench, creating a connection. Its greatest advantage is its reusability.

Advantages: No crimping equipment is required, allowing for on-site assembly and disassembly.

Typical applications: Equipment maintenance, on-site emergency replacements, low-pressure pneumatic lines, and test benches requiring frequent configuration changes. It offers exceptional flexibility.

II. Detailed Explanation of Professional Technical Parameters: Understanding the “Language” of Connectors
Regardless of which type you choose, it’s important to understand the following key parameters to ensure the connector’s optimal fit with your system.

① Material: Carbon steel, zinc-plated, suitable for most hydraulic fluids.

Stainless steel: Excellent corrosion resistance, used in special media (such as seawater and chemicals) or in the food and pharmaceutical industries. Common grades include 304 and 316.

② Thread Type:

Metric Thread: Examples include M14x1.5, M18x1.5, DKOL, DKOS, 10411-RW, 10511-RW, and 20591-RW.

British Thread (BSP): Examples include G1/4″*19, 12611-RW, and 22691-RW.

American Thread (NPT, JIC, SAE, and ORFS): Examples include 9/16″*18, 1″*14, and 16711-RW and 26741-RW.

③Sealing Type (Sealing Surface):

O-Ring Face Seal (ORFS): This seal is achieved by squeezing the O-ring between two surfaces, providing excellent vibration-proofing and leakage prevention.
Cone Seal (37° / 24°): Such as JIC 37° flare
Ball Seat Seal; SAE Straight Thread (ORB) Seal

④ Hexagonal Nut Size:
Wrench size, such as 24mm, 1-1/16″, use the corresponding wrench size for installation.

⑤ Style:
0° / 45° / 90° Elbow
Reducers, Unions, etc.

III. Our Value: Beyond Products, Providing Solutions

Hydraulic hose assemblies are not simply screwed on; they require specialized equipment and technology for manufacturing.

For integrated fitting: Use a precision UNIFLEX crimping machine and set the correct crimping dimensions based on the specific hose and connector model. Under-crimping can cause detachment, while over-crimping can damage the hose carcass. Both of these can cause instant failure under high pressure, leading to serious safety incidents.

For detachable fitting: Experience and expertise are also required to ensure proper assembly and avoid cross-threading or seal damage.

This is our core service: we provide you with complete, ready-to-install, safe and reliable hose assemblies. Each hose is pressure-tested before shipment to ensure your equipment operates efficiently and safely. We offer professional support to safeguard your purchase.

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Please visit the official Website：www.chnhose.com