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The Sanheng AC / AD DIN2353 Metric Thread Male Union Tee Fitting is engineered specifically for demanding hydraulic pipeline connection systems. Picking up this fitting, operators will immediately notice the substantial weight of the forged metal and the precise, clean cut of the metric threads, reflecting strict manufacturing tolerances. It adopts a highly reliable metric thread and bite type tube fitting structure, making it a critical component for secure oil, water, and gas pipeline connections across various industrial sectors.
The product is purposefully categorized into three distinct pressure series: LL (ultra light), L (light) and S (heavy), ensuring comprehensive coverage for different hydraulic system requirements. It serves as an indispensable node for fluid distribution, effectively splitting or combining flow paths while maintaining absolute system integrity in complex hydraulic systems.
Product Name | Sanheng AC / AD Hydraulic DIN2353 METRIC Thread Male Union Tee Fitting |
Code | AC AD |
Material & Surface Treatment | Carbon steel (zinc plated Cr3+); Stainless steel (passivation) |
Application | Pipe connection（oil,water,gas） |
Technology | CNC machining |
Package | All adapters equipped with thread protective end caps, inside plastic bags, and then inside standard blank carton boxes. |
Custom Service | OEM & ODM available |
Part No. | Metric Thread | Tube O.D. (mm) | Key Dimensions (mm) | Pressure Rating (MPa) | Series |
AC-08 | M8×1 | 4 | S1=11, L1=21 | 10 | LL |
AC-12 | M12×1.5 | 6 | S1=12, L1=27 | 25 | L |
AC-30 | M30×2 | 22 | S1=27.5, L1=44 | 16 | L |
AD-14 | M14×1.5 | 6 | S1=16, L1=31 | 63 | S |
AD-30 | M30×2 | 20 | S1=26.5, L1=48 | 40 | S |
AD-52 | M52×2 | 38 | S1=41, L1=72 | 31.5 | S |
Designed strictly according to the DIN2353 tube fitting structure, this component excels in standard hydraulic tube connections. The core working principle revolves around its advanced bite-type sealing mechanism. Instead of relying on traditional flaring, tightening the nut forces the internal ferrule to deform elastically and bite deeply into the steel tube wall. This creates a visible, highly secure mechanical ridge that guarantees a zero-leakage seal, even when the system is subjected to severe pressure pulsations and thermal expansion.
Uses a standardized metric thread configuration, rendering it universally compatible with common European-style hydraulic components. This intelligent assembly scheme allows the tee body to connect directly to female threaded hoses with minimal effort. Furthermore, it can be flexibly paired with standard metric nuts, progressive ferrules, and elastomeric seals to perfectly match rigid steel tubing systems, providing engineers with versatile installation options on the factory floor.
The tee design facilitates efficient fluid distribution and the simultaneous connection of multiple pipelines within complex hydraulic systems. To maximize structural strength, the main body of the tee is manufactured using a one-piece forging process rather than welding. This integral construction eliminates weak heat-affected zones, drastically improving the fitting's ability to absorb mechanical shocks, resist heavy vibrations, and maintain its pressure-retaining capabilities during continuous industrial operation.
Available in three distinct pressure series to match specific operational demands:
LL series – the ultra light series, optimized for confined spaces and low-pressure pneumatic or lubrication lines.
L series – the light series, serving as the standard choice for general industrial fluid power applications.
S series – the heavy series, featuring thickened walls to withstand extreme pressure spikes and heavy mechanical loads.
The carbon steel variant features an environmentally responsible Cr3+ zinc plating finish. This surface treatment presents a smooth, slightly iridescent metallic sheen that actively repels moisture and prevents the formation of red rust. It is highly suitable for general hydraulic environments, offering excellent defense against physical abrasion and daily wear in busy manufacturing facilities.
For the most demanding environments, the stainless steel option undergoes a specialized passivation treatment. This process removes free iron from the surface, leaving a pristine, matte silver finish that forms an inert protective oxide layer. It provides exceptional corrosion resistance against harsh chemicals, saltwater, and acidic gases. Regardless of the material chosen, all adapters are equipped with protective thread end caps before being sealed in plastic bags, ensuring the precision threads remain completely unblemished from our facility to your assembly line.
The Sanheng AC/AD DIN2353 Metric Thread Male Union Tee Fitting serves as a universal, highly dependable component for industrial fluid transmission. Its main application scenarios span across several critical sectors:
Hydraulic power systems: Heavy engineering machinery, such as excavators and wheel loaders, as well as precision hydraulic machine tools, rely on this fitting to provide accurate fluid shunt for multi-actuator systems. The solid forged construction withstands the constant hydraulic hammering inherent in these machines.
Petrochemical pipelines: Within the complex oil and gas transmission pipelines of refineries and chemical processing plants, this fitting adapts perfectly to medium and high pressure working conditions. The mechanical grip of the bite-type design prevents hazardous media leaks, prioritizing plant safety.
General industrial piping: Metallurgy plants, electric power generation facilities, and the shipbuilding industry utilize these tees for extensive water supply and gas transmission networks. The specialized anti-corrosion surface treatments ensure long-lasting performance even in damp, salt-laden, or chemically aggressive atmospheres.
Mobile hydraulic equipment: The hydraulic pipelines of construction machinery and agricultural tractors face relentless ground vibration and physical impact. The exceptional structural strength and secure thread engagement of this fitting resist loosening, maintaining uninterrupted fluid power across rough terrains.
The AC series is generally utilized for the LL and L series pressure ratings, making it the standard choice for conventional fluid power circuits. In contrast, the AD series is specifically engineered for S series hydraulic systems, featuring a heavier build and thicker walls to manage extreme pressure spikes safely.
It uses a precision-machined metric thread strictly according to the DIN2353 tube fitting structure. This guarantees universal compatibility with a vast array of metric hydraulic components, simplifying both initial assembly and future maintenance procedures.
We maintain a highly efficient inventory turnover for all standard LL, L, and S series components, ensuring rapid response and stable delivery for large-volume orders. Additionally, comprehensive OEM and ODM customization services are available to tailor dimensions, structural designs, and surface finishes to your exact project specifications.
