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Product Name | Sanheng Hydraulic CC / DD DIN Metric Run Tee Fitting with Swivel Nut |
Code | CC CD |
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. |
Engineered for demanding fluid routing systems, the CC/CD series run tee serves as a critical three-way shunt for metric card tube hydraulic pipelines. Compliant with DIN2353 and ISO8434-1 standards, this fitting presents a compact, solid structure born from integral hot forging and precision CNC machining. The tactile coldness of the dense metal body hints at its exceptional structural integrity and burst resistance. Equipped with a freely rotating swivel nut and a 24° cone metal sealing mechanism, it eliminates the need to rotate the entire fitting body during installation. This independent rotation allows technicians to achieve secure torque locking even within the most confined manifold spaces, drastically reducing assembly time and maintenance labor costs. The metal-to-metal hard seal effectively prevents medium weeping, ensuring a bone-dry connection despite long-term equipment vibration and severe pressure fluctuations. With mature anti-corrosion surface treatments, these tees reliably handle oil, water, and compressed gas delivery across diverse industrial environments, from heavy construction machinery to corrosive marine platforms.
Produced strictly following DIN2353 and ISO8434-1 metric card tube specifications, every dimensional aspect of this run tee—from the thread pitch and 24° cone angle to the exact hex dimensions—is precisely controlled via multi-axis CNC fine machining. The comprehensive size range covers both Light (L) and Heavy (S) series, accommodating a wide spectrum of metric seamless steel tube diameters for precise branch matching. Because the dimensional tolerances are held to strict international standards, these fittings guarantee 100% direct interchangeability with mainstream global brands such as Parker and Stauff. This universal compatibility simplifies inventory management and replacement sourcing for procurement teams. Every finished product undergoes rigorous factory hydraulic tightness evaluations and salt spray sampling tests before dispatch. For engineering teams requiring exact integration details, complete 2D/3D dimension drawings, material certifications, and detailed parameter sheets are readily supplied upon request.
Freely Rotatable Swivel Nut Design: The nut rotates entirely independently while the main tee body remains stationary. This mechanical advantage allows technicians to apply precise locking torque in extremely compact, confined spaces without the physical restriction of turning the entire fitting, significantly lowering labor hours during complex valve block assemblies.
24° Cone Metal Hard Seal: The precision-machined cone surface creates a formidable metal-to-metal compression seal once standard torque is applied. This design requires no supplementary elastomeric O-rings or chemical sealants, delivering a stable, zero-leakage joint that withstands continuous mechanical vibration and abrupt pressure surges in heavy-duty circuits.
High-Density Forged Anti-Vibration Body: Starting from a single-piece hot forged blank, this manufacturing method eliminates internal casting porosity and aligns the metal grain structure. The resulting dense body significantly improves integral compression strength and fatigue resistance, preventing joint loosening or structural failure under high-frequency cyclic vibrations.
Anti-Galling Precision Thread: The burr-free CNC-cut threads provide a smooth, tactile engagement during assembly. This precise thread profile ensures smooth, repeated disassembly and routine maintenance cycles without experiencing thread scratching, galling deformation, or cross-threading issues, extending the usable lifespan of the connection.
Double Anti-Corrosion & Multi-Media Adaptation: Utilizing two mature surface processing options, the exterior resists dampness and severe chemical erosion. This protective layer stably matches the conveyance requirements of petroleum-based hydraulic oils, water glycols, and various industrial compressed gases, ensuring long-term structural integrity.
Environment-friendly trivalent chromium zinc plating with uniform coating adhesion and qualified salt spray rust-proof performance, high mechanical strength and outstanding cost performance. Ideal for construction machinery, agricultural equipment and general indoor industrial hydraulic pipeline shunting.
Professional passivation removes surface free iron and machining residues to generate compact self-repair anti-oxidation film, excellent acid, alkali and salt fog resistance, applicable for marine, petrochemical and high-humidity severe corrosive working environments.
Construction & Agricultural Machinery: Serves as a reliable three-way branch connection for the hydraulic card tube pipelines of heavy-duty excavators, wheel loaders, tractors, and harvesting equipment, enduring constant mechanical shocks and earth-moving vibrations.
General Manufacturing & Metallurgy: Acts as a critical pipeline diversion assembly for multi-axis CNC machine tools, automated robotic production lines, and high-pressure metallurgical hydraulic power units, ensuring uninterrupted fluid delivery for continuous operations.
Petrochemical Industry: The passivated stainless steel tee variant is heavily utilized for chemical medium delivery pipelines and oil refining equipment, where fluid shunting must occur without risk of internal corrosion or hazardous media contamination.
Marine & Offshore Engineering: Provides a matching hydraulic tee solution for ship cabin machinery and offshore platform fluid transmission pipeline systems, effortlessly resisting the relentless degradation caused by coastal salt spray and harsh ocean winds.
The manufacturing journey begins with a raw blank that is integrally hot forged. This thermal process optimizes the internal metal grain distribution, resulting in a denser texture, a heavier feel, and significantly higher burst resistance. The DIN metric threads, the critical 24° sealing cone, and the outer hexagonal flats are finished synchronously by advanced multi-axis CNC lathes. This simultaneous machining guarantees unified dimensional tolerances and a perfectly smooth inner runner, minimizing fluid turbulence. Beyond standard production, we offer comprehensive OEM capabilities, supporting special material requests such as brass or custom non-standard dimensions tailored to specific engineering layouts. Every single finished tee goes through rigorous 100% thread calibration, hydrostatic sealing tests, and full visual appearance screening before entering the warehouse, satisfying the strictest DIN and ISO safety requirements for high-pressure fluid transmission systems.
Q1: What’s the core advantage of swivel nut compared with fixed thread tee?
A1: The swivel nut realizes independent rotation locking. This means technicians do not need to reserve a large operating clearance to rotate the entire heavy fitting body during assembly. It drastically improves installation efficiency and reduces labor fatigue when working inside compact valve blocks or densely packed fluid routing panels.
Q2: How to choose between carbon steel and stainless steel?
A2: The zinc-plated carbon steel variant is highly cost-effective and structurally robust for conventional indoor manufacturing and non-salt-fog environments. Conversely, the passivated stainless steel is the mandatory selection for coastal salt spray exposure, offshore platforms, and chemical corrosive working scenes where long-term asset protection outweighs initial component costs.
Q3: Can custom laser marking be made on hex surface?
A3: Yes, we fully support custom laser engraving of your exclusive corporate brand logo, specific part numbers, or traceability codes directly onto the hex flats. This service is initiated immediately after receiving your vector drawing files, aiding in efficient inventory management and brand reinforcement.
Q4: Can it be reused after repeated disassembly?
A4: Absolutely. The combination of precision anti-galling CNC threads and the standard 24° cone metal sealing structure supports multiple cycles of disassembly and reinstallation. As long as standard torque specifications are followed, the metal-to-metal seal will not fail, ensuring long-term serviceability without requiring constant replacement parts.
