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.
DIN 2353 90° ELBOW BSP THREAD ADJUSTABLE STUD ENDS WITH O-RING SEALING
90° Elbow (DIN 2353 / ISO 8434-1) Definition A 90° Elbow is a type of hydraulic fitting used to join two pipes or tubes at a 90-degree angle. This fitting features two different sealing methods: a 24° compression (bite-type) cutting ring seal on one end and bsp thread adjustable stud ends with o-ring sealing on the other end. These connectors are designed to provide a secure, leak-free connection, ensuring smooth and efficient fluid flow in hydraulic systems.DIN 2353 1CG BSP THREAD STUD ENDS WITH O-RING SEALING(Type E) STRAIGHT
Straight Connector (DIN 2353 / ISO 8434-1) Definition: A Straight Connector is a type of hydraulic fitting used to join two pipes or tubes in a straight line. This fitting features two different sealing methods: a 24° compression (bite-type) cutting ring seal on one end and BSP THREAD STUD ENDS WITH O-RING SEALING on the other end. These connectors are designed to provide a secure, leak-free connection, ensuring smooth and efficient fluid flow in hydraulic systems.DIN 2353 Tee Reducers
Tee Reducers/EO 24° cone end / Male metric thread – is a type of hydraulic fitting used to join two pipes or tubes in a straight line. This fitting features two different sealing methods: a 24° compression (bite-type) cutting ring seal on one end.These connectors are designed to provide a secure, leak-free connection, ensuring smooth and efficient fluid flow in hydraulic systems.DIN 2353 EQUAL TEE
EQUAL TEE/EO 24° cone end / Male metric thread – is a type of hydraulic fitting used to join two pipes or tubes in a straight line. This fitting features two different sealing methods: a 24° compression (bite-type) cutting ring seal on one end.These connectors are designed to provide a secure, leak-free connection, ensuring smooth and efficient fluid flow in hydraulic systems.1CM DIN 2353 METRIC THREAD ED sealing ISO 9974 Zinc nickel alloy
EO 24° cone end / Male metric thread – ED-seal (ISO 9974) is a type of hydraulic fitting used to join two pipes or tubes in a straight line. This fitting features two different sealing methods: a 24° compression (bite-type) cutting ring seal on one end, and a CAPTIVE SEAL (ED Seal) on the other end. These connectors are designed to provide a secure, leak-free connection, ensuring smooth and efficient fluid flow in hydraulic systems.1CB DIN 2353 BSP THREAD WITH CAPTIVE SEAL(ED sealing ISO 1179)
Male BSPP thread – ED-seal (ISO 1179) / EO 24° cone end is a type of hydraulic fitting used to join two pipes or tubes in a straight line. This fitting features two different sealing methods: a 24° compression (bite-type) cutting ring seal on one end, and a CAPTIVE SEAL (ED Seal) on the other end. These connectors are designed to provide a secure, leak-free connection, ensuring smooth and efficient fluid flow in hydraulic systems.DIN 2353 90° ELBOW FITTINGS
90° Elbow Fittings (DIN 2353 / ISO 8434-1) Definition: A 90° Elbow Fitting is a type of hydraulic fitting designed to connect two pipes or tubes at a 90° angle. This fitting is used to change the direction of fluid flow in a hydraulic system while maintaining a smooth, efficient flow path. The connection is made using metric threads (ISO 261) and a 24° compression (bite-type) sleeve connection, ensuring a secure, leak-free seal.DIN 2353 STRAIGHT REDUCERS
A Straight Reducer is a type of hydraulic fitting designed to connect two pipes or tubes of different diameters in a straight line. This fitting is used to provide a smooth transition between sections with varying bore sizes, ensuring minimal fluid turbulence and maintaining efficient flow. The connection is made using metric threads (ISO 261) and a 24° compression (bite-type) sleeve connection, ensuring a secure, leak-free seal.
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.