DIN Adapters
Have you ever struggled to find a reliable DIN hydraulic adapter that seals perfectly under high pressure and harsh environments? At Jiayuan Hydraulics, our precision-engineered DIN adapters deliver leak-free performance, long service life, and compatibility with a wide range of hydraulic systems. Whether you need stainless-steel DIN 24° swivel adapters, metric DIN 3853 fittings, or custom-machined solutions, our experts ensure the perfect match for your application—every time.
Explore our selection of DIN adapters below to find the perfect fit for your hydraulic system.
1FG9-OG SAE J1453 90° ELBOW ORFS MALE O-RING / BSP MALE O-RING
The 90° Elbow ORFS Male O-Ring / BSP Male O-Ring fitting provides a leak-free hydraulic connection between ORFS male O-ring and BSP male O-ring threads. The 90° angle design allows for easy directional changes in tight spaces, making it ideal for applications where fluid flow needs to be redirected at right angles.DIN 2353-(XC-RN) Cross Fittings
DIN 2353 Cross Fittings are essential components in hydraulic and pneumatic systems, facilitating the connection of four tubes at a central point. They are designed to meet the DIN 2353 standard, ensuring compatibility and reliability in various applications.DIN 2353-(CC-RN) Barrel Tee Fittings with Swivel Nut
The DIN 2353 Branch Tee with UN/UNF Thread Adjustable Stud Ends and O-Ring Sealing is a compression fitting designed to distribute fluid flow in hydraulic and pneumatic systems. This fitting conforms to the DIN 2353 / ISO 8434-1 standards and incorporates UN (Unified Thread) and UNF (Unified Fine Thread) threaded components, providing a reliable and secure connection. With adjustable stud ends and O-ring sealing, it is suitable for high-pressure and critical applications where leak-proof sealing and flexibility during installation are essential.DIN 2353-WD Captive Seal (ED Seal)
In DIN 2353 fittings, the ED Seal, also known as the Captive Seal, is a crucial component designed to ensure leak-proof connections in hydraulic and pneumatic systems. Its primary function is to provide a reliable seal between the fitting and the tube, preventing fluid leakage under high-pressure conditions.DIN 2353-(RL/RS) CUTTING RING
DIN 2353 Cutting Rings are key components in hydraulic and pneumatic systems, used to create a tight, leak-proof seal when connected to tube fittings. These rings conform to DIN 2353 and ISO 8434-1 standards, ensuring reliable performance under high-pressure conditions.DIN 2353-(CC-RN) Barrel Tee Fittings with Swivel Nut
The DIN 2353 Branch Tee with UN/UNF Thread Adjustable Stud Ends and O-Ring Sealing is a compression fitting designed to distribute fluid flow in hydraulic and pneumatic systems. This fitting conforms to the DIN 2353 / ISO 8434-1 standards and incorporates UN (Unified Thread) and UNF (Unified Fine Thread) threaded components, providing a reliable and secure connection. With adjustable stud ends and O-ring sealing, it is suitable for high-pressure and critical applications where leak-proof sealing and flexibility during installation are essential.DIN 2353-(ACOC-OG/RN)Branch Tee UN/UNF Thread Adjustable Stud Ends with O-Ring Sealing
The DIN 2353 Branch Tee with UN/UNF Thread Adjustable Stud Ends and O-Ring Sealing is a compression fitting designed to distribute fluid flow in hydraulic and pneumatic systems. This fitting conforms to the DIN 2353 / ISO 8434-1 standards and incorporates UN (Unified Thread) and UNF (Unified Fine Thread) threaded components, providing a reliable and secure connection. With adjustable stud ends and O-ring sealing, it is suitable for high-pressure and critical applications where leak-proof sealing and flexibility during installation are essential.DIN 2353-(BC-RN) BRANCH TEE FITTINGS WITH SWIVEL NUT
The DIN 2353 Branch Tee with UN/UNF Thread Adjustable Stud Ends and O-Ring Sealing is a compression fitting designed to distribute fluid flow in hydraulic and pneumatic systems. This fitting conforms to the DIN 2353 / ISO 8434-1 standards and incorporates UN (Unified Thread) and UNF (Unified Fine Thread) threaded components, providing a reliable and secure connection. With adjustable stud ends and O-ring sealing, it is suitable for high-pressure and critical applications where leak-proof sealing and flexibility during installation are essential.DIN 2353-(ACHC-OG/RN) METRIC MALE 24° CONE / METRIC MALE ADJUSTABLE STUD END ISO 6149 BRANCH TEE
The DIN 2353 Metric Male 24° Cone / Metric Male Adjustable Stud End ISO 6149 Branch Tee is a metric compression fitting that meets both DIN 2353 and ISO 6149 standards. It is designed to provide a secure and reliable branching connection for fluid systems, utilizing metric male threads, a 24° cone sealing design, and adjustable stud ends. This fitting is ideal for high-pressure hydraulic applications and is commonly used in a wide range of industries that require precise and leak-proof connections.DIN 2353-(ACGC-OG/RN) BRANCH TEE BSP THREAD ADJUSTABLE STUD ENDS WITH O-RING SEALING
A Branch Tee BSP Thread Adjustable Stud Ends with O-Ring Sealing is a compression fitting designed to connect fluid lines in hydraulic and pneumatic systems. This fitting conforms to the BSP (British Standard Pipe) thread standard, providing a secure and leak-proof connection with adjustable stud ends and an integrated O-ring sealing for high-pressure applications. It is ideal for use in various industries where reliable branching of fluid flow is essential.DIN 2353-(ACCO-OG/RN) BARREL TEE UN、UNF THREAD ADJUSTABLE STUD ENDS WITH O-RING SEALING
A DIN 2353 Barrel Tee with UN/UNF Thread Adjustable Stud Ends and O-Ring Sealing is a metric compression fitting designed to connect fluid lines in hydraulic and pneumatic systems. This fitting is specifically made to meet DIN 2353 / ISO 8434-1 standards, ensuring compatibility with UN (Unified Thread) and UNF (Unified Fine Thread) threaded components. It features an adjustable stud end and an O-ring seal, making it ideal for high-pressure applications where secure, leak-proof connections are required.DIN 2353-(ACCH-OG/RN) RUN TEE METRIC MALE 24° CONE / METRIC MALE ADJUSTABLE STUD END ISO 6149-2
DIN 2353 series TEE with Metric Male 24° Cone / Metric Male Adjustable Stud End (ISO 6149-2) and O-Ring Sealing is a versatile hydraulic fitting designed for secure connections in high-pressure systems. This tee fitting allows the transition between standard DIN 2353 compression connections and metric threaded ports, offering flexibility in installation and adjustment.DIN 2353-(ACCG-OG/RN)Run Tee BARREL TEE BSP THREAD ADJUSTABLE STUD ENDS WITH O-RING SEALING
DIN 2353 series BARREL TEE with BSP Thread Adjustable Stud Ends and O-Ring Sealing is a specialized hydraulic fitting designed for secure and leak-proof connections between metric tubes and BSP-threaded components. This type of tee fitting is particularly useful in hydraulic systems requiring both metric and BSP connections, offering flexibility in installation and adjustment.DIN 2353-(AC)Reducing Tee
A Reducing Tee is a hydraulic fitting used to connect three tubes of different diameters in a T-shaped configuration within a hydraulic system. It features 24° compression (bite-type) cutting ring seals on all three ends, ensuring secure and leak-free connections.DIN 2353-(AC)EQUAL TEES
DIN 2353 Equal Tee is a metric compression fitting used in hydraulic systems to split or combine fluid flow at a 90-degree angle. It conforms to DIN 2353 / ISO 8434-1 standards, ensuring compatibility with metric tubing in high-pressure hydraulic and pneumatic applications.DIN 2353-(9C)FEMALE PLUG
A DIN 2353 Female Plug is a sealing component used in metric compression fitting systems that conform to DIN 2353 / ISO 8434-1 standards. It is designed to seal off open ports in hydraulic and pneumatic systems, preventing fluid leakage and contamination.DIN 2353-(8C)Metric Nut
A Metric Nut is a fastener with an internally threaded hole, designed to mate with a metric bolt or threaded rod.DIN 2353-(7BC-GDK)BSP PRESSURE GAUGE CONNECTOR WITH DKI SEALING RING
A BSP Pressure Gauge Connector with DKI Sealing Ring is a specialized fitting used to connect pressure gauges to hydraulic and pneumatic systems. It ensures a secure and leak-proof connection, utilizing BSPP (British Standard Pipe Parallel) threads and a DKI sealing ring for enhanced sealing performance.
Application

Industrial hydraulics & factory automation
DIN adapters are widely used to connect tubes, hoses and valves in industrial hydraulic systems—presses, injection moulding machines, and automated presses—where leak-free, high-pressure connections are required.
Construction & heavy machinery
Used on excavators, loaders, cranes and compactors to join hydraulic cylinders, hoses and control valves; chosen for durability under vibration and dirt.
Agricultural equipment
Tractors, harvesters and balers use DIN metric fittings for implements and auxiliary hydraulics because of metric sizing advantages in many markets.
Mobile/transport hydraulics (trucks, trailers)
DIN adapters serve in mobile hydraulic circuits for tipping bodies, lifts and brake actuators where space and reliable sealing matter.

Key Features of DIN Adapters
Standardized metric sizing (DIN-2353 / ISO)
DIN adapters follow widely accepted metric standards, so parts interchange reliably across suppliers and systems. This simplifies specification, procurement and service for global fleets.
Metal-to-metal cutting-ring seal
The cutting-ring/ferrule design creates a robust metal-to-metal seal that resists extrusion and gives reliable, leak-free performance under pressure—critical for safety-sensitive hydraulic circuits.
High pressure capability
Engineered for high-pressure hydraulic applications, DIN adapters maintain sealing integrity during peak loads and heavy duty cycles, making them suitable for industrial and mobile hydraulics.
Material & corrosion options
Available in carbon steel, stainless steel and brass (with protective platings), DIN adapters let specifiers match mechanical strength and corrosion resistance to fluids and environments — from workshop floors to marine decks.
Compact footprint & wide size range
Low-profile geometry plus a broad metric size range (instrumentation to large bore lines) enables tidy routing in tight machinery spaces while supporting diverse system requirements.
Vibration resistance & serviceability
Designed to withstand shock and vibration, DIN adapters resist loosening in mobile equipment. Their straightforward cutting-ring installation and replacement procedures make field maintenance fast and predictable.
Customize DIN Adapters for Your Project
Jiayuan Hydraulics helps buyers specify and order custom DIN adapters that match exact system requirements — from single prototype pieces to production runs. The company’s customization service focuses on fit, function and longevity: choose precise metric ODs and thread forms, select materials and surface treatments, add integrated features (swivels, cross-adapters, check valves) and request factory testing or kitting to simplify installation.
What can be customized
- Material & finish: carbon steel (plated), stainless steel grades, brass, special coatings for corrosion resistance.
- Size & thread: exact DIN-2353 metric tube ODs, thread classes and special thread lengths for tight routing.
- Sealing & ferrule options: cutting-ring/ferrule styles, bonded seals or O-ring variations for specific pressure or fluid requirements.
- Special features: swivel joints, male/female cross-adapters (DIN↔JIC/SAE), integrated check valves or custom ports.
- Assembly & testing: pre-assembled hose/pipe assemblies, hydrostatic testing, batch traceability and custom packaging.
Why customize
- Ensures a leak-free fit in constrained spaces and mixed-fleet retrofits.
- Matches material selection to fluid and environment, reducing corrosion and service costs.
- Simplifies field service with pre-kitted assemblies and marked parts.
- Reduces downtime by engineering adapters to the application’s peak pressure and vibration profile.
Leading DIN Adapter Manufacturer in China

Yuyao Jiayuan Hydraulic Fitting Factory, established in 1998, is a leading manufacturer of hydraulic fittings and accessories for construction and agricultural machinery. We are ISO 9001 and IATF 16949 certified, ensuring top-notch product quality. With advanced equipment and a dedicated team, we serve global markets, including Japan, Germany, and the USA, providing value and innovation to our customers.
Why Choose Our DIN Adapters?
When it comes to hydraulic s ystems, DIN adapters from Jiayuan are your go-to solution for ensuring secure and reliable connections. We offer a range of adapters that are engineered to meet or exceed industry standards, providing you with peace of mind that your hydraulic system will perform efficiently and safely.
- Durability and Performance: Made from high-quality materials, our DIN adapters are built to last under high-pressure conditions, providing maximum performance and reliability.
- Wide Compatibility: With a range of sizes and configurations available, our DIN adapters are compatible with a variety of hydraulic hoses, pipes, and fittings.
- Expert Support: Our knowledgeable team is always available to assist you in selecting the right DIN adapter for your system’s unique needs, ensuring optimal performance.
If you have any questions or need help selecting the correct DIN adapter for your hydraulic system, we’re here to assist. Our experienced customer support team can provide personalized guidance to ensure you make the right choice.
FAQs About DIN Adapters
What is a DIN adapter?
A DIN adapter is a metric hydraulic or pneumatic fitting manufactured to DIN/ISO specifications (e.g., DIN-2353/ISO-8434) that joins tubes, hoses or components with a reliable metal-to-metal or thread seal.
What sealing method do DIN adapters use?
Most DIN adapters use a cutting-ring (ferrule) that creates a metal-to-metal seal; some series may use O-rings or bonded seals depending on the design and pressure class.
How do I determine the correct DIN size?
Measure the tube outside diameter (OD) and consult the DIN sizing chart for the series (LL, L, S, etc.). Match tube OD, thread spec and pressure rating to the manufacturer’s datasheet.
Are DIN adapters compatible with JIC or SAE fittings?
Cross-adapters exist, but compatibility depends on sealing method and pressure rating. Mixing standards can introduce leak points, so verify pressure and thread forms before use.
Which materials are available and how to choose?
Common materials: carbon steel (often plated), stainless steel, and brass. Choose by fluid compatibility, required strength and corrosion environment (e.g., stainless for marine).
What pressure and temperature ranges do DIN adapters support?
Ranges vary by series, size and material; many DIN-2353 fittings support high hydraulic pressures and wide temperature ranges when used with correct seals. Always confirm with the product’s pressure-temperature chart.
Can DIN adapters be reused?
Reuse is possible in some cases but not recommended for critical, high-pressure or safety-sensitive systems. Cutting rings often deform and are usually replaced during reassembly.