Hydraulic 24291 24292 ORFS Flat Seat 90° Degree Elbow Swaged Hose Fitting

Product Name	Sanheng Hydraulic 24291 24292 ORFS Flat Seat 90° Degree Elbow Swaged Hose Fitting
Code	24291 24292
Material & Surface Treatment	Carbon steel (zinc plated Cr3+); Stainless steel (passivation)
Application	Pipe connection（oil,water,gas）
Technology	CNC machining & Forged
Package	All adapters equipped with thread protective end caps, inside plastic bags, and then inside standard blank carton boxes.
Our main products	Threaded hydraulic hose fittings and pipe adapters, sucn as Metric , BSP, BSPT, NPT , JIC , ORFS, SAE thread.

The 24291 (for braided hoses) and 24292 (for spiral hoses) series 90° elbow fittings are professionally engineered for high-pressure hydraulic hose pipeline systems, adopting ORFS female flat seat sealing structure and crimping/swaged connection method. Made of integral high-density forging blank with multi-axis CNC precision machining, the fitting features a flawlessly smooth surface and burr-free threads, ensuring gall-free assembly and stable torque tightening. The precision-machined flat seat forms an even, gap-free O-ring compression seal, effectively eliminating fluid leakage and pressure drop risks, while the integrated crimping structure firmly locks the hose reinforcement layer to prevent blowouts under extreme pressure spikes. Suitable for conveying hydraulic oil, industrial water and compressed gas, it strongly resists mechanical vibration, thermal fluctuations and corrosive media, reduces unplanned downtime, and ensures long-term reliable operation of heavy-duty industrial fluid systems.

Precise Technical Specifications

Manufactured in full compliance with ISO 12151-1 and SAE J516 international industry standards, all thread dimensions, ORFS flat seat flatness and tolerances are strictly controlled at micron level. The product passes 96-hour neutral salt spray test with reliable corrosion resistance, with a full size range covering DN6 to DN40. Complete dimensional drawings, thread parameters and pressure rating data can be provided according to customer requirements, 100% interchangeable with mainstream international brand standard parts.

Key Features

• ORFS Flat Seat Zero-Leak Design: Precision-machined flat face compresses the O-ring evenly, forming an impenetrable seal that completely eliminates fluid seepage, even under extreme pressure fluctuations and vibration.

• 90° Compact Routing Structure: Standard right-angle design enables tight-radius hose layout in confined equipment compartments, saves installation space without causing flow turbulence or pressure bottlenecks.

• High-Strength Anti-Blowout Crimping: Mirror-smooth inner ferrule ensures uniform crimping force, firmly bites into the hose steel reinforcement layer, preventing catastrophic hose blowout under sudden pressure surges.

• Excellent Vibration Dampening Performance: Permanent swaged connection forms an integrated bond with the hose, effectively neutralizes the loosening effect of continuous mechanical vibration, avoiding slow leakage of threaded joints.

• Wide Hose & Media Adaptability: 24291 series for braided hoses, 24292 series for spiral hoses; chemically stable structure is compatible with hydraulic oil, industrial water, compressed gas and other common industrial media.

• Easy Maintenance & Inspection: Flat seat design allows intuitive visual inspection of the seal and quick O-ring replacement, greatly reducing maintenance labor time and equipment downtime.

Material Options

Carbon Steel (Cr3+ Zinc Plated)

Adopts eco-friendly trivalent chromium zinc plating process, with excellent rust and oxidation resistance, high tensile strength and impact resistance, cost-effective for conventional hydraulic systems, construction machinery and general industrial working conditions.

Stainless Steel (Passivation)

Through rigorous professional passivation treatment, it forms a dense protective chromium oxide layer, with outstanding chemical corrosion resistance, perfectly suitable for petrochemical, marine, food processing and other highly corrosive or high-cleanliness working environments.

Brass (Optional)

Customizable brass material with excellent electrical conductivity and corrosion resistance, suitable for special working conditions with anti-spark or high conductivity requirements, ordered with the suffix "-EE".

Industrial Application Scenarios

This ORFS flat seat 90° swaged hose fitting is widely used in high-pressure hydraulic hose steering connection scenarios in various core industrial fields:

Construction & Earthmoving Machinery: Hydraulic hose steering layout for excavators, bulldozers, loaders and other mobile heavy equipment, adapting to high-vibration, high-impact field working conditions.

Industrial Manufacturing: Pipeline assembly for automated production lines, hydraulic stations, machine tools, high-pressure cleaning equipment and compressed air systems.

Mining & Quarrying Equipment: Hydraulic system piping for underground drilling rigs, crushers, conveyors and other mining machinery, withstanding harsh abrasive and high-pressure working environments.

Petrochemical & Marine Engineering: Medium transmission pipelines for oil and gas, chemical processing systems, ship equipment and offshore platforms, with corrosion-resistant material options for harsh marine and chemical environments.

Agricultural Heavy Machinery: Hydraulic system piping for high-horsepower tractors, combine harvesters and other agricultural equipment, resistant to outdoor harsh weather and soil erosion.

Manufacturing

The fitting body is formed by high-tonnage integral hot forging to optimize metal grain structure, ensuring dense internal matrix and excellent burst pressure resistance. The ORFS flat seat, internal and external threads, and crimping ferrule are processed by multi-axis CNC machine tools with micron-level precision. Each batch undergoes strict thread gauge inspection, flatness verification, pressure sealing test and crimping performance test before delivery, fully complying with ISO and SAE standard requirements, ensuring stable and reliable long-term operation under extreme high pressure.

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FAQ

Q1: How does the ORFS flat seat design prevent leaks in high-vibration applications compared to traditional tapered threads?

A1: The ORFS (O-Ring Face Seal) design utilizes a captive elastomeric O-ring compressed against a precisely machined flat surface. In high-vibration environments, this creates a dynamic, zero-clearance seal that absorbs mechanical shocks without loosening. In contrast, tapered threads rely on metal-to-metal wedging, which can easily back out, distort, or suffer from thread galling under similar continuous stress.

Q2: Can the 24291 and 24292 swaged fittings accommodate both braided and spiral hydraulic hoses?

A2: Yes, our system is designed for complete versatility. The 24291 series is specifically engineered with ferrule dimensions optimized for standard braided hoses. For applications requiring heavy-duty spiral hoses, the 24292 series provides the exact internal geometry needed for a secure, blow-out-proof crimp.

Q3: What specific surface treatment is applied to the carbon steel variants to ensure long-term corrosion resistance?

A3: Our carbon steel fittings undergo a premium Cr3+ zinc plating process. This advanced trivalent chromium treatment provides an environmentally compliant, highly durable barrier against oxidation, moisture, and rust, significantly extending the fitting's lifespan in harsh industrial environments.

Q4: If we require custom laser marking for our proprietary equipment, what is the process and impact on lead times?

A4: We fully support custom laser marking for logos, part numbers, or specifications. You simply provide the vector artwork or text requirements to our engineering team. Because the laser marking is integrated directly into our final production phase, it typically does not add any significant delay to our standard 30-day bulk delivery window.

Q5: How do you ensure the internal cleanliness of the fittings before they are dispatched?

A5: Internal cleanliness is critical for preventing contamination in hydraulic systems. After the CNC machining and deburring processes, all fittings undergo a rigorous automated cleaning protocol to remove cutting fluids and microscopic metal shavings. Finally, thread protective end caps are applied immediately, and the parts are sealed in plastic bags to prevent any dust or moisture ingress during transit.