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What is a metric standard hydraulic adapters?



What is a metric standard hydraulic adapter?


The metric standard hydraulic adapters use metric threads. Metric threads are represented by pitch, while American and British threads are represented by the number of threads per inch, which is their biggest difference. Metric threads have a 60 degree equilateral profile, British threads have an isosceles 55 degree profile, and American threads have a 60 degree profile. Metric threads are measured in metric units, while American and British threads are measured in imperial units. Pipe threads are mainly used for connecting pipes, and their internal and external threads fit tightly, with two types: straight pipes and tapered pipes. The nominal diameter refers to the diameter of the connected pipeline, and obviously the thread diameter is larger than the nominal diameter.

The metric hydraulic adapter, also known as the metric threaded sleeve type adapter, tightens the hydraulic sleeve within the 24 ° cone surface of the adapter by tightening the nut, forming an effective hard contact seal while the threaded sleeve bites the steel pipe. The biggest characteristics of metric threaded sleeve adapters are reliable connection, high pressure resistance, temperature resistance, good sealing and repeatability, convenient installation and maintenance, and safe and reliable operation.

Understanding different types of metric standard hydraulic adapters: dimensions and shapes.


There are many types and sizes of metric hydraulic adapters, and the size and thread can vary between different systems and industries. When selecting the correct metric standard hydraulic adapter, its size, shape, and thread must be considered. Thread is an essential part of the metric hydraulic adapter in the connection system, and they can vary in size and type. Dimensions and threads are defined by many Chinese, European, and Japanese institutions.


1、Advantages of straight hydraulic connectors. This type of adapter is one of the simplest hydraulic adapters, and its connection method is very simple. Just place the two pipe end faces together and fix them with threads. This connection method is very tight, can effectively prevent liquid leakage, and is very easy to maintain and replace. In addition, the application range of through hydraulic adapters is very wide, and they can be used in various applications, including automotive, machinery, construction, and industrial fields.

What is a metric standard hydraulic adapters? 1

2、90 degree hydraulic adapter is another very common connection method, which is very popular in different application scenarios. The main advantage of this type of adapter is its ability to achieve impact absorption function, which can effectively protect the hydraulic cylinder and valve from pressure impact and vibration. In addition, the 90 degree hydraulic adapter is also very flexible and can be used in small spaces, reducing obstacles to machine construction and improving machine performance and efficiency.

What is a metric standard hydraulic adapters? 2

3、A three-way hydraulic adapter is a adapter used to connect three hydraulic pipelines. It is very suitable for complex hydraulic systems, ensuring the flow of liquids between different pipelines, while also allowing for flow and pressure regulation. In addition, three-way hydraulic adapters can also achieve distribution and assembly functions in hydraulic systems, allowing liquid to flow from one pipeline to multiple pipelines, thereby achieving higher efficiency and productivity.

What is a metric standard hydraulic adapters? 3

In summary, straight, 90 degree, and three-way hydraulic adapters are all very important hydraulic components that enable the hydraulic system to achieve the function of liquid flowing from one place to another. The connection advantages of these hydraulic adapters include tight sealing, easy maintenance, flexible use, impact absorption, and pressure regulation. The use of these hydraulic adapters can improve the efficiency and performance of hydraulic systems, making machines and equipment more stable, reliable, and efficient.

Why can we trust Ningjiyuli to provide you with DIN standard hydraulic adapters?


1、20 +years of experience in research and development, production, and sales, we have a high-quality and efficient team to serve you.

2、Our products meet ASTM/BRITISH/DIN/EATON standards, and our factory has passed the ISO 9001 international quality certification.

3、Our prices are competitive and stable,We offer 25000+ series and sizes inventory of SAE/BSP standard hydraulic adapters and fittings.

4、Fast delivery: 7-15 working days for stock orders and 30-45 days for production orders.

5、20years+ export experience, mainly serving customers in the United States, Canada, South America, Australia, Europe, Southeast Asia and other countries, and already received favorable response.

Characteristics of metric hydraulic adapters made of three common materials


Choosing the appropriate metric hydraulic adapter material is another key factor in ensuring the normal operation of pipeline systems. Metric hydraulic adapters are usually made of materials such as brass, steel, and stainless steel.

1. Brass: The brass metric hydraulic connector is reasonably priced and widely used. This material has good corrosion resistance and oxidation resistance, so choosing brass is often a good choice, mainly used in low-pressure hydraulic pipelines.

2. Stainless steel: Stainless steel has good corrosion resistance, high temperature resistance, and stability, suitable for various pipeline systems. The advantages of stainless steel metric hydraulic adapters in pressure resistance, corrosion resistance, and long-term operation are recognized in the industry.

3. Carbon steel: In some application scenarios, metric hydraulic adapters made of carbon steel materials are also a good choice. Carbon steel hydraulic adapters have advantages such as strong sealing, good durability, and low operating costs, making them a highly cost-effective hydraulic accessory. With the continuous progress of industrial technology, the excellent quality of carbon steel hydraulic adapters will be discovered in a wider range of application scenarios and become an important component of hydraulic systems.

Installation and maintenance tips for metric hydraulic adapters


The correct positioning and characteristics of metric hydraulic adapters can only be effectively utilized under correct installation and maintenance conditions. The following are tips for installing and maintaining metric hydraulic adapters:

1.Before selecting a metric hydraulic adapter, make sure to understand the pipe specifications and dimensions, and ensure that the threads match the pipe.

2.When manually installing metric hydraulic adapters, it is important to avoid excessive tightening and ensure that they can be fully and tightly connected to the pipeline.

3.During the installation process, it is essential to use reliable tools to avoid damaging the adapters or application materials.

4. Ensure the use of high-quality sealing materials during installation to prevent leakage.

5. After the pipeline system is running, it is necessary to regularly check the sealing performance of the metric hydraulic adapters to ensure no leakage connections.

If the pipeline system requires replacement or maintenance of certain components, be sure to inspect all metric hydraulic adapters and seals. If any leakage is found, it must be replaced in a timely manner.


As a crucial component of pipeline systems, metric hydraulic adapters play an irreplaceable role in the operation and safety of the system. When choosing metric hydraulic adapters, many factors need to be considered, such as size, thread, and material manufacturing. As a crucial component of pipeline systems, metric hydraulic adapters have a significant impact on the operation and safety of the system. The correct selection, installation, and maintenance of metric hydraulic adapters can ensure the smooth operation of the entire pipeline system, improve work efficiency, and better serve people's production and life.


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