Hydraulic Fittings - DIN 2353

proportional valve
bulkhead union

Hydraulic Bulkhead Union

Hydraulic Bulkhead Elbow

swivel elbow connector

Hyd. Swivel Elbow Connector

swivel tee connector

Hyd. Swivel Tee Connector

hydraulic equal cross

Hydraulic Equal Cross

Taper Male Stud Coupling

hydraulic male stud elbow

Parallel Male Stud Elbow

hydraulic male stud elbow

Taper Male Stud Elbow

Taper Male Stud Tee

Parallel Male Run Tee

banjo coupling

Hydraulic Banjo Coupling

Parallel Male Stud Tee

Hydraulic Fittings - Single Ferrule Type as per DIN 2353

Hydraulic fittings are an essential component of hydraulic systems that are used in a wide range of applications, including agriculture, construction, and manufacturing. These fittings connect tubes and hoses to pumps, cylinders, and other hydraulic components, creating a sealed and secure connection that allows hydraulic fluids to flow through the system without leaks or pressure drops.

One of the most common types of hydraulic fittings is the DIN 2353 single ferrule bite type fitting. This fitting is named after the German Institute for Standardization (DIN), which sets the technical standards for hydraulic tube fittings in Europe. The single ferrule bite type fitting is designed to create a strong, leak-free connection between two tubes, using a single ferrule to grip and seal the tube.

Features and Benefits of DIN 2353 Single Ferrule Bite Type Hydraulic Fittings

The DIN 2353 single ferrule bite type fitting is characterized by its simple yet robust design, which allows for easy installation and reliable performance under high-pressure and high-temperature conditions. Some of the key features and benefits of this fitting include:

Single Ferrule Design: The single ferrule design of the DIN 2353 fitting simplifies the installation process by reducing the number of components needed to create a connection between two tubes. The ferrule is placed over the end of the tube, and when the fitting is tightened, the ferrule is compressed onto the tube, creating a tight seal that prevents leaks and ensures efficient fluid flow.

Bite Type Connection : The bite type connection of the DIN 2353 fitting ensures a strong and reliable connection between two tubes. As the fitting is tightened, the ferrule bites into the tube, creating a tight grip that resists pulling and twisting forces.

Metric Size Range: The DIN 2353 fitting is available in a wide range of metric sizes, from 4mm to 42mm, allowing for compatibility with a variety of hydraulic components and systems.

Stainless Steel Construction: The DIN 2353 fitting is typically made of high-quality stainless steel, which provides excellent resistance to corrosion, wear, and heat. Stainless steel also ensures a long service life for the fitting, reducing the need for frequent replacement and maintenance.

High-Pressure and High-Temperature Rating: The DIN 2353 fitting is designed to withstand high-pressure and high-temperature conditions, making it suitable for use in a variety of hydraulic applications, including those that involve heavy machinery, high-speed operation, and extreme weather conditions.

Hydraulic fittings – DIN 2353 single ferrule fittings, also known as compression fittings, are commonly used in hydraulic systems to create leak-tight connections between pipes, tubes, and hoses. These fittings consist of three main components: the body, the cutting ring (single ferrule), and the nut. Here’s how they work:

  1. Body: The body of the hydraulic fitting is typically made of metal and has a tapered internal surface. The end of the pipe or tube is inserted into this tapered surface.
  2. Single Ferrule (Cutting Ring): The single ferrule is a small, tubular metal component with a cone-shaped inner surface. This ferrule is placed over the pipe or tube before insertion into the fitting body.
  3. Nut: The nut is also made of metal and is threaded on the outside. It is used to secure the fitting and create the necessary compression force to make a tight seal.

Working Principle of Hydraulic Fittings - DIN 2353 Single Ferrule

  1. Assembly: To assemble the fitting, the single ferrule is first slid onto the pipe or tube, followed by the insertion of the tube into the fitting body. The end of the tube makes contact with the tapered surface inside the fitting body.
  2. Compression: Next, the nut is threaded onto the fitting body, and as it tightens, it pushes the single ferrule forward. The tapered surface of the fitting body causes the single ferrule to compress around the tube evenly.
  3. Bite and Seal: As the nut continues to tighten, the single ferrule “bites” into the outer surface of the tube, creating a strong mechanical grip. Simultaneously, it also forms a tight seal between the tube and the fitting body, preventing any fluid leakage.
  4. Leak-tight Connection: The combination of mechanical grip and the metal-to-metal seal ensures a reliable and leak-tight connection, making it suitable for high-pressure hydraulic systems.

The main advantage of DIN 2353 single ferrule hydraulic fittings is their ease of assembly and reusability. They can be disassembled and reassembled multiple times without losing their effectiveness, making them a popular choice in hydraulic applications where frequent maintenance or alterations are required. However, it is crucial to follow the manufacturer’s guidelines and torque specifications to ensure proper assembly and a leak-free connection.

How the Hydraulic Fitting Works - DIN 2353

When the Coupling Nut is progressively tightened it makes the Progressive Ring to move on to the tube which subsequently makes two bites into the outside diameter of the pipe, thereby forming a visible collar of material at 1, ensuring a strong, reliable, high degree of safety and permanent sealing due to the outstanding construction & design of our progressive ring.
A second seal point at 2 is also created between the now bowed ferrule and the fitting body seat. The progressive ring in its dismantled state can be turned around while still on the tube. Fitting is a flare less three – piece design fitting comprising of a Socket body having a precision conical seat, a one – piece precision machined hardened Progressive Ring (ferrule) and a Coupling Nut.

Installation and Maintenance of DIN 2353 Hydraulic Fittings

The installation of DIN 2353 single ferrule bite type hydraulic fittings requires some basic tools and techniques, but can be completed quickly and easily with the right guidance. Here are some key steps to follow when installing DIN 2353 hydraulic fittings:

Select the Correct Fitting Size:     Before installing the fitting, ensure that you have selected the correct size for your application. Use a caliper or ruler to measure the outside diameter of the tube and select the corresponding fitting size.

Prepare the Tube End:   Cut the tube to the desired length and ensure that the end is clean, smooth, and free of burrs or deformations. Use a deburring tool or sandpaper to smooth the edge of the tube, if necessary.

Insert the Ferrule:    Slide the ferrule over the end of the tube, with the thick end facing toward the fitting body.

Insert the Tube: Insert the tube into the fitting body until it touches the shoulder. Ensure that the tube is aligned with the fitting axis and that the end of the tube

HYDRAULIC TUBE FITTINGS as per DIN 2353 – Single Ferrule Design

TUBE TO TUBE COUPLINGS
MALE STUD FITTINGS
FEMALE STUD COUPLINGS
SWIVEL FITTINGS
BANJO COUPLINGS
WELD COUPLINGS
PRESSURE GAUGE CONNECTORS

Tube to Tube Couplings

Straight Union
Equal Elbow
Equal Tee
Equal Cross
Bulkhead Union
Bulkhead Elbow

Male Stud Fittings

Parallel Male Stud Coupling  Taper Male Stud Coupling      Parallel Male Stud Elbow     Taper Male Stud Elbow Parallel Male Stud Tee   Taper Male Stud Tee

Female Stud Fittings

Female Stud Coupling      Female Stud Elbow    Female Stud Tee    Pressure Gauge Connector

Other Fittings

Banjo Couplings

Weld Couplings

Swivel Elbow

Swivel Tee

Swivel Elbow Connhector

Swivel Tee Connector

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