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-METRIC BOLT
A Metric Bolt is a fastener with an external thread that conforms to the ISO metric thread standard (ISO 68-1, ISO 261, ISO 965-1). It is commonly used in mechanical, automotive, construction, and industrial applications for secure fastening.DIN 2353-BSP BOLT
What is a BSP Bolt? A BSP Bolt refers to a fastener with a British Standard Pipe (BSP) thread, which is commonly used in hydraulic and fluid systems. BSP threads are standardized under ISO 228-1 (BSPP – parallel) and ISO 7-1 (BSPT – tapered) and are widely used in Europe and Asia. Why Does BSP Appear in DIN 2353? DIN 2353 (ISO 8434-1) primarily defines metric compression fittings, but BSP threads are included because many hydraulic components and ports, especially in older or British-influenced systems, still use BSP connections. To ensure compatibility, some DIN 2353 fittings are designed with BSP male or female threads on one end while maintaining the 24° cone metric compression fitting on the other end.DIN 2353-(6C9) 90° Elbow Bulkhead Fittings
90° Elbow Bulkhead Fittings in the metric compression series (DIN 2353 / ISO 8434-1) are designed to provide a secure, right-angle connection through a panel or bulkhead. These fittings allow hydraulic tubes to pass through walls or enclosures while changing the direction of flow by 90 degreesDIN 2353-(5CM)Straight Connector: METRIC FEMALE STUD FITTINGS
Metric Female Stud Fittings are essential components in hydraulic systems, ensuring secure and leak-free connections. Designed to meet DIN 2353 / ISO 8434-1 standards, they are widely used in industrial, automotive, and construction machinery applicationsDIN 2353-(7CB-GDK)Straight Connector: Metric Compression Fitting to BSP Pressure Gauge Connector with DKI Sealing Ring
This straight connector is designed for pressure measurement applications, featuring one end with a metric swivel nut (with wire-on nut design) for easy tube connection and the other end with a BSP pressure gauge connector equipped with a DKI sealing ring for secure sealing.DIN 2353-(5CB-GDK)Straight Connector: Metric Compression Fitting to BSP Pressure Gauge Connector with DKI Sealing Ring
This straight connector is designed for pressure measurement applications, featuring one end with a metric female thread (compatible with DIN 2353 / ISO 8434-1 male stud fittings) and the other end with a BSP pressure gauge connector equipped with a DKI sealing ring for secure sealing.DIN 2353-BSP FEMALE STUD FITTINGS-5CB/5DB
A Straight Connector is a hydraulic fitting used to join two pipes or tubes in a straight line. It features a 24° compression (bite-type) cutting ring seal with an external metric thread on one end and a BSP female stud thread on the other.DIN 2353-4C PLUG
A Plug is a hydraulic fitting used to seal the end of a tube or port in a hydraulic system. It features a 24° compression (bite-type) cutting ring seal, ensuring a secure and leak-free closure.DIN 2353-Weld 1CW-26-18 DIN2353 24°cone-weld
24° compression (bite-type) cutting ring seal on one end and a weld end on the otherDIN 2353-BSPT MALE 90°elbow
a 24° compression (bite-type) cutting ring seal on one end and ISO 7 BSPT male thread on the other end.DIN 2353-UN、UNF THREAD STUD ENDS WITH O-RING SEALING ISO 11926
a 24° compression (bite-type) cutting ring seal on one end and a UN/UNF thread stud end with O-ring sealing on the other end.DIN 2353-90° elbow UN、UNF THREAD STUD ENDS WITH O-RING SEALING ISO 11926
a 24° compression (bite-type) cutting ring seal on one end and a UN/UNF thread stud end with O-ring sealing on the other end.DIN 2353-NPT MALE
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 an NPT male thread 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-JIC 74°CONE SEALING
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 a JIC 74° cone 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 90° ELBOW METRIC THREAD ADJUSTABLE STUD ENDS ISO 6149
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 90° Elbow metric thread adjustable stud ends ISO 6149 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 STRAIGHT ISO 6149 METRIC THREAD STUD ENDS
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 Straight ISO 6149 metric thread stud ends on the other end. These connectors are designed to provide a secure, leak-free connection, ensuring smooth and efficient fluid flow in hydraulic systems.
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.