October 15, 2021

DME&JDE Hydraulic Hoses & Fittings Marking, Selection And Matching

Hydraulic hose fittings are perfectly connected to the hydraulic equipment.

In this issue, Niuniu will show you how to quickly select and match hoses and fittings, and how to mark DME fittings and JDE hoses.

Hydraulic hose assembly = hydraulic hose + hydraulic fitting + crimping operation + quality control.

In the field of fluid transmission, hydraulic hose assemblies are high-performance products and therefore require careful handling to extend their lifespan and ensure any issues are detected early. Since they have to withstand high pressure and form part of an often complicated system, there are various sources of danger when dealing with them, and which must be handled with particular care. Therefore, hydraulic hose & fitting selection is of great importance.

Produced by DME&JDE Group (DME&JDE), even the most durable hydraulic hose assembly has a limited life in engineer equipment, transportation equipment and processing equipment. To get the most life out of the hose, you will need to choose the correct type and specification.

Improper selection will significantly shorten the service life of the hose. Where there is a hose, there must be a fitting to connect the hose to work. The selection process that we generally take:

  1. Select the correct hydraulic hose.
  2. Select the correct fitting for the hydraulic hose.
  3. Use the correct crimping operation.
  4. Traceable quality control process.

Hydraulic hose fittings are perfectly connected to the hydraulic equipment.

Common Errors In Selection & Use

Facing of many types of fittings and hoses, how should we choose the appropriate fittings and hydraulic hose to match for our machines?

According to SAE, here are some of the common errors in selection and use:

  • Flexing hose under the minimum bend radius
  • Twisting, kinking, pulling, or abrading the hose
  • Operating the hydraulic system below the minimum temperature or above the maximum

Exposing hose to pressure surges above the max. recommended operating

  • Pressure
  • Mixing hose, assembly equipment, or fittings that are not compatible against manufacturer's instructions.

When selecting hydraulic hose for any industrial application, consider the needed dimensions and performance specifications.

Now, Niuniu will show you how to match the hose and fittings quickly through the picture.

The related products produced by DME&JDE Group (DME&JDE) provide customers with worry-free, one-stop product services.

Four elements of quick matching of main DME&JDE products – hydraulic hose (JDE) and hydraulic fitting (DME)"

It should be noted that the pressure rating of your fittings needs to match the hose and the rest of your system. If it is lower, you just effectively reduced your maximum pressure for the whole system.

If you ignore this point, you may collapse the fittings under pressure.

Hydraulic hose fittings are perfectly connected to the hydraulic equipment.

When it comes to picking the right fittings, it is vital that you pair it correctly with your hose. You need the two parts to work together or both will be compromised.

Marking & Selection


After reading Niuniu's introduction, do you have a deeper understanding of the quick matching between hose and fitting?

Next, Niuniu will introduce the marking method of DME fittings for customers to select suitable fitting type.

  • Marking and selection methods of DME fittings.
  • After reading the marking and selection methods of fittings, it is time for Niuniu to introduce the product series and marking method of JDE hose.
    • Marking and selection of JDE hose products.
    • Marking method of JDE hose


The selection of hydraulic hose should consider the following two aspects:

  • Dimensions
    The dimensions to consider for hydraulic hose are the inside and outside diameter. Minimum bend radius is a combination of two things. The first is the acceptable hose cross-section deformation. The second is the mechanical bending limit of the reinforcement.
  • Performance Specifications
    When choosing a hydraulic hose, consider the type of fluid that’s conveyed. Also, consider the concentration of that fluid. Then consider any substances or chemicals in that fluid that may erode the hose cover.

The hose you choose must be resistant to any special oils or chemicals that may move through it. The same goes for the working environment in which the hose will work.For example, ozone, UV light, chemicals, saltwater, and pollutants can degrade the hose. This can cause it to fail prematurely.

Many DME&JDE hydraulic hose assemblies and connectors are displayed.

You now have the rudimentary understanding needed to select the proper hydraulic hose for your needs. Remember that choosing the correct DME&JDE type and grade hose will extend its working life.

DME&JDE hydraulic hoses and fittings, which are the perfect combination, have already provided services for customers at home and abroad, especially for customers of main engine plants at engineer equipment level, such as engineer equipment, mining equipment and coal mine machinery, and have been highly recognized by customers!

Low carbon, Environmental Protection & Trust

DME&JDE hydraulic hoses and fittings have many product certifications. We keep our products on the path of sustainable development. And "low carbon, environmental protection and trust" will run through the whole product design and manufacturing process.

(The following is our certification demonstration:)

Several certificates of DME&JDE

In the future, we will continue to uphold the tenet of "eliminating errors or defects in the production process of hydraulic hoses and fittings", continuously improve the quality of products and provide customers with the best quality products and services!

A picture shows DME&JDE group and three membership.