| Quantity: | |
|---|---|
Product Name | Sanheng ISO Hydraulic 24211 24212 ORFS Female Flat Seat Straight Swaged Hose Fitting |
Code | 24211 24212 |
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 24211 (engineered specifically for braided hoses) and 24212 (designed for heavy-duty spiral hoses) straight swaged hose fittings are meticulously constructed to eliminate the most frequent failure modes in high-pulse fluid transmission: premature seal degradation and catastrophic hose pull-out during continuous pressure cycling. Holding these fittings, you immediately notice the substantial weight and solid feel of the closed-die forged steel, indicative of their structural integrity. Unlike angled alternatives that inherently introduce fluid turbulence, this straight, full-bore architecture ensures the lowest possible pressure drop, optimizing energy efficiency across long-distance hydraulic networks. Beyond the standard straight configuration, this series is part of a comprehensive product matrix that includes 45°, 90° elbows, and T-type active nut variations, allowing for complete, one-stop system integration. The precision-calibrated O-Ring Face Seal (ORFS) flat seat delivers a satisfyingly firm, uniform compression against the O-ring, eradicating the localized stress fractures common in traditional cone-seal designs. By creating a flawless 360° mechanical interlock with the hose reinforcement layer, these fittings confidently withstand sudden pressure spikes up to 1.5 times their rated capacity, significantly extending the mean time between failures (MTBF) for critical oil, water, and gas lines.
Manufactured in absolute compliance with ISO 12151-1 and SAE J516 international standards, every critical dimension—from the ORFS flat seat flatness to the thread pitches and swaging profiles—is strictly controlled within a ±0.03mm tolerance window. This rigorous dimensional accuracy guarantees 100% seamless interchangeability with equivalent ORFS hose ends from global mainstream fluid power brands, including Parker, Gates, and Eaton, allowing for effortless system upgrades without compatibility concerns. To ensure long-lasting field performance, the carbon steel variants undergo 96-hour neutral salt spray testing with zero red rust formation, while the premium 316L stainless steel versions easily surpass 500 hours of aggressive salt spray exposure. Before leaving the facility, each individual fitting is subjected to a 100% hydrostatic pressure test at 1.5 times the rated working pressure. To further support your assembly teams, we provide comprehensive installation guidance, including bespoke swaging parameter charts, precise standard assembly torque recommendations, and detailed O-ring material compatibility guides, effectively preventing installation-induced leaks from the source.
Full-Bore Zero-Restriction Flow Path: The straight-through internal geometry completely eliminates fluid turbulence and pressure bottlenecks. By maintaining a consistent inner diameter, it improves overall hydraulic system energy efficiency by up to 12% when compared to restrictive angled fittings, reducing pump strain and heat generation.
High-Pulse Resistant ORFS Seal: The precision-ground flat seat ensures an impeccably uniform O-ring compression across the entire 360° surface. This dynamic absorption capability maintains a bone-dry, leak-free performance through over 1 million severe pressure cycles—lasting up to three times longer than conventional metal-to-metal cone seals.
Hose-Specific Swaging Profile: Recognizing that one size does not fit all, the 24211 model features a shallow, rounded ferrule groove tailored to protect delicate braided hose layers. Conversely, the 24212 model utilizes a deep, sharp-edged groove designed to aggressively bite into thick spiral steel reinforcement for maximum retention.
Anti-Offset Swaging Guide: An intelligently integrated alignment shoulder ensures absolute concentricity between the fitting stem and the hose during the crimping process. This physical guide eliminates the primary cause of premature hose failure: uneven swaging and subsequent localized stress concentrations.
Captive Pre-Formed O-Ring Groove: The meticulously machined dovetail-style groove securely locks the elastomer O-ring in place during overhead or blind installations. This prevents accidental displacement, pinching, or extrusion, even when subjected to extreme, sudden pressure spikes.
Internal Deburr-Free Transition: Running a finger inside the fitting reveals a flawlessly smooth, polished internal bore. This meticulous finishing process removes all microscopic sharp edges, protecting the hose inner tube from abrasion and preventing fluid cavitation during high-velocity flow.
Carbon Steel (RoHS-Compliant Cr3+ Zinc Plated)
Characterized by its bright, uniform silver-blue hue, our carbon steel option adopts an advanced, high-adhesion trivalent chromium (Cr3+) zinc plating process. This environmentally responsible treatment penetrates deeply to uniformly cover even the innermost swaging grooves, effectively preventing rust formation in the vulnerable areas exposed after crimping. It delivers an exceptional balance of high tensile strength and cost-effectiveness, making it the preferred choice for general construction equipment, agricultural machinery, and expansive indoor industrial hydraulic networks.
304/316L Stainless Steel (Citric Acid Passivation)
For environments demanding ultimate corrosion resistance, we utilize premium low-carbon stainless steel billets. These are processed through an eco-friendly citric acid passivation treatment that meticulously removes surface free iron, resulting in a dense, self-healing chromium oxide film with a smooth, matte finish. The 316L variants fully comply with FDA food contact standards, making them the perfect, contamination-free solution for food and beverage processing, pharmaceutical manufacturing, and harsh marine applications where reliability is non-negotiable.
Straight swaged hydraulic hose fittings showing precision machined threads and flat seat design
Hydraulic Power Unit Main Lines: Highly ideal for straight-line fluid transmission between central pumps, directional valves, and high-capacity accumulators, where maintaining minimal pressure loss is absolutely critical for overall system efficiency.
Injection Molding Machine Clamping Systems: Effortlessly withstands the violent, rapid pressure cycling inherent in plastic injection molding operations, maintaining a steadfast, leak-free performance through millions of continuous production cycles.
Wind Turbine Hydraulic Systems: The long-life ORFS seal design drastically reduces the need for routine maintenance and fluid top-offs in remote, highly inaccessible wind turbine nacelles, lowering operational downtime.
Food & Beverage Processing Equipment: When specified in 316L stainless steel and paired with food-grade FKM O-rings, these fittings ensure hygienic, sanitary fluid transfer in commercial dairy, brewing, and high-speed bottling plants.
Heavy Construction Machinery: Extensively utilized for straight hose connections on excavator boom cylinders and loader lift arms, easily absorbing severe shock loads, debris impacts, and continuous off-road vibration.
To achieve unparalleled structural density, the fitting body is formed in a single, continuous operation via 1200-ton hot closed-die forging. This specialized process aligns the internal metal grain flow directly along the load path, maximizing fatigue resistance and burst strength far beyond standard machined bar stock. The critical ORFS flat seat is then precision ground to a demanding flatness of 0.02mm per 100mm, ensuring perfect, unyielding O-ring compression. Furthermore, all swaging grooves are roll-formed rather than cut, creating a smooth, burr-free surface that actively prevents hose inner tube damage during crimping. We also provide comprehensive OEM/ODM value-added services, ranging from exclusive CAD modeling and non-standard dimension customization to specialized surface treatments and bespoke brand labeling, fully empowering distributors with personalized solutions. To guarantee zero-defect delivery, our quality control framework spans the entire lifecycle—from initial raw material spectrometer analysis to destructive hose pull-out tests, dynamic impulse testing, and 100% final hydrostatic pressure evaluation before packaging.
Below are answers to some of the most technical and common inquiries regarding our ORFS Female Flat Seat Straight Swaged Hose Fittings, designed to provide you with the deep insights needed for informed procurement decisions.
The O-Ring Face Seal (ORFS) architecture utilizes a highly compressible elastomeric O-ring seated securely within a precision-machined captive groove. When tightened against the flat face of the female fitting, it creates a dynamic, soft seal that actively absorbs micro-movements, thermal expansion, and mechanical vibrations. This elastomeric memory maintains a constant, leak-free connection even under severe operational stress where traditional metal-to-metal seals would ultimately vibrate loose and fail.
Yes, our fittings are highly versatile and specifically engineered to address different hose constructions. The 24211 series is meticulously optimized for braided hoses, featuring a profile that ensures a secure crimp without crushing or damaging the internal wire mesh. For heavier-duty applications utilizing multi-layer spiral hoses, the corresponding 24212 series provides the exact dimensional tolerances and deeper bite required for a safe, permanent, high-pressure swage.
Cr3+ zinc plating is an advanced, environmentally responsible surface treatment that offers exceptional barrier protection against oxidation. It significantly outperforms traditional, highly toxic hexavalent chromium in terms of environmental safety and RoHS compliance. Furthermore, it provides superior, long-lasting resistance to both white and red rust, easily passing stringent 96-hour salt spray tests to ensure the fittings maintain their integrity in damp or mildly corrosive environments.
To support your supply chain, conventional standard products are maintained in robust stock within our high-capacity warehousing facilities for rapid dispatch. For OEM/ODM custom-engineered solutions, we leverage our highly efficient single-setup CNC lines to ensure a lead time of approximately 30 days. This duration comprehensively covers precise CAD modeling, prototype validation, bespoke tooling, and rigorous quality assurance testing before full-scale production commences, effectively reducing your inventory pressure.
Absolutely. We operate strictly under internationally recognized ISO quality management frameworks. To satisfy global market access and stringent safety audits, comprehensive documentation—including raw material composition certificates, destructive burst test logs, FDA compliance declarations (for 316L), and precise dimensional inspection reports—can be provided upon request, ensuring total transparency and compliance with your project specifications.
