November 18,
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Previously, Niu Niu introduced the types and marking methods of DME hose fittings. In this issue, Niu Niu will introduce the components of DME hose fittings in detail.
Hydraulic hose assembly uses hydraulic hose fittings to connect hydraulic hoses to transport hydraulic fluid, which is very important to the overall efficiency and safety of the hydraulic system. Among them, the factors to be considered in the selection of hydraulic hose fitting include the style of hose ferrule and the nipple, the sealing mode of nipple, bending degree and thread, etc. Follow Niu Niu to understand.
The material of the hose ferrule is 20 steel, which makes use of good plastic deformation of the material, so that the outer tooth extrusion rubber hose and the nipple seal match. There are many kinds of ferrules, basically be in the light of different nipples, different working environment,different specific working condition, the structural form is different. Usually the inner side of the ferrule is composed of some grooves or teeth, square groove, trapezoid, zigzag and other types, which needs to be used with different forms of nipples.
Commonly used structural types of ferrules are roughly divided into the following three types:
Wave-Shaped Groove Ferrule
The outer surface of the wave-shaped ferrule is mainly a smooth cylinder, the angle between the hypotenuse of the inner teeth and the axis is 25° &#; 45°, and the radial edge and the hypotenuse are connected by a fillet of 0.2-0.5 mm, which is generally composed of 3-5 inner teeth.
Trapezoidal Groove Ferrule
The outer surface is a smooth cylinder, the inner surface is a groove with a certain number of trapezoidal gullet, the angle between the hypotenuse and the axis is 25° &#; 45°, and there is a rectangular groove between each sawtooth, the top end of the tooth is a plane with a width of 1-2 mm, and the tax corner is transited with a fillet of 0.2 mm.
Composite Groove Ferrule
The outer surface is a T-shaped groove corresponding to the dislocation of the inner teeth, and the inner surface is a groove with a certain number of bilateral trapezoidal teeth, which is suitable for matching with the interlock nipple.
Ring-Shaped Ferrule
In addition to the common ferrule types described above, there are some unique structures. As shown in the figure, the ring-shaped ferrule, unlike the traditional ferrule, has different internal teeth machined in the internal test, but has a separate design of "ring structure", which is locked in the ferrule by extrusion, thus reducing the processing cost. The structural design is ingenious and has the same magical effect.
Types of DME hose ferrules are shown in the following figure. Users can choose appropriate hose sleeves according to actual production requirements.
The common materials of nipples are 20, 35 and 45# steel,while the straight nipples are often made of 35 and 45# steel with strong anti-deformation ability. Considering the process of bending nipples, 20 or 35# steel is generally selected. With the popularization of hot bending technology, 35 and 45# steel can also be used for elbow nipple. The structural characteristics of the nipple are closely related to the crimping form of the hose, and the structures designed by each enterprise are also various. According to the regularity of the structure, the types of the nipple can be roughly divided into saw-tooth structure, rectangular structure and interlock structure, etc.
Saw-Tooth Nipple
Commonly known as barb-shaped. It is mainly composed of saw-tooth grooves,the angle between bevel and axis is generally not more than 20°,the top of sawtooth is circular or flat,and the flat and short sides of teeth are smooth rounded corners (0.2 - 0.5 mm), so as to prevent damage to the inner layer of rubber hose during assembly and crimping.
Rectangular Nipple
It is mainly composed of several rectangular grooves, with 5~7 grooves forming a sealing groove, the groove depth is generally 0.3-0.6 mm, and the transition surface between the groove top and the groove bottom is generally smooth and rounded with a radius of 0.1-0.3 mm, so as to prevent damage to the inner layer of the rubber hose during assembly and crimping.
Inter-Lock Nipple
Also known as anti-pull-out structure. This type of structure is specially designed to prevent the hose from being pulled out of the hose fitting, and sealing is guaranteed by rectangular structure. Therefore,the inter-lock nipple is actually a fusion of the anti-pull-out structure and the rectangular structure.
According to the comparison of hose fittings standards GB/T , SAEJ516-, ISO found that GB/ T and 1SO classification and description are basically the same, the above two standards and SAEJ516- comparison, only Part 6 of SAEJ516- differs from the above two standards, one is a 60°cone ends and the other is dry seal pipe thread hose fittings. (The specific features of DME nipple will be introduced by Niu Niu next time.)
In addition to the above-mentioned types, there are still various types of fittings: 45° cone, 30° cone, 12° cone hose fittings and so on.
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In addition to straight hose fittings, fittings also have various elbows: 22.5° elbow, 30° elbow, 45° elbow, 60° elbow, 90° elbow and so on. The company should select the appropriate fitting style and elbow according to the specific conditions of its own production.
We DME&JDE Group provides users with comprehensive and high-quality hoses,fittings and accessories. We constantly optimize production equipment and design schemes to improve product performance. Higher hydraulic system working pressures, faster speed and more compact assembly spaces are the direction of our constant efforts!
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A stainless-steel hydraulic hose is used in high-heat applications that demand high maintenance for the effective functioning of machines. Stainless steel hydraulic hoses maintenance has a significant role in overall development, as it is always better to have a high-maintenance system than deal with a failed machine. Stainless-steel hydraulic hose is a high-performance tool that can be used for various purposes based on its type and application.
While dealing with the importance of stainless steel hose hydraulics, it can be seen that hoses, tubing, and fittings form an integral part of a hydraulic system. This helps in the better functioning of machines. Scheduled maintenance with a proper checklist and regular expert services help develop machines with high performance and enhanced functionality. Stainless steel hydraulic hose maintenance can be carried out through timely fittings and replacements, which will help in solving issues of any nature.
Want to Extend Stainless-Steel Hose Performance
Stainless steel hydraulic hose inspection is one of the routine maintenance actions concerning stainless steel hydraulic hoses, where inspection of the hose and hose assembly helps fix any issues concerning the same. While inspection is carried out, different leaks that may happen can be identified by finding dirty areas on the hose and other assemblies. It is important to identify such leaks, as they can result in the sudden bursting of the hose, causing various issues for the overall system. A regular inspection helps in identifying the cause of leaks and other issues, which will help in finding the apt solution through repair and can improve the safety of the system through the same.
When the inspection of stainless steel hoses is carried out, it is crucial to consider certain components in the assembly that require visual inspection and physical usage. The stainless steel hose fittings that need replacing, repairing, and tightening are identified while inspecting hose fittings to suggest what needs to be done based on the issues at hand. If any serious issues that require immediate repair or fixing are visibly recognised, then the equipment will be shut down and immediate action for repair will be taken as per the severity of the issue. Due to the high pressure of devices, the stainless steel hoses can fail eventually, even if they are maintained properly and chosen appropriately as per customer need. Such issues demand the replacement of hydraulic hoses at regular intervals, considering the industry standards and recommendations.
While dealing with the dangers associated with a stainless steel hydraulic hose failure, it is important to understand that if proper maintenance of the hose is not done then various issues will arise affecting the overall system. Vital dangers that might happen due to the failure of the stainless steel hydraulic hose are the following:
When any kind of stainless steel hydraulic hose failure happens, the primary victims are the workers who are associated with different kinds of work, as it has a direct impact on them. As workers are more prone to such dangers, the safety of workers should be the primary concern of any workplace and employers. Equal importance should be provided to solving stainless steel hydraulic hose failures as that of maintenance of hydraulic hoses to ensure the development of quality machines and effective services to users. If a safe environment is made available to workers they can work efficiently, which will result in better outcomes as per business needs.
Another main danger concerning stainless steel hydraulic hose failure is the environmental damage caused by the sudden failure or leakage of different systems. The leakage of any stainless steel hydraulic equipment can result in millions of litres of hydraulic fluid getting deposited in the soil, rivers, forests, and so on. Such deposition can have a huge impact on the quality of soil and other environmental aspects, resulting in a great loss of environmental benefits.
The huge financial loss caused by any explosion or leakage issue concerning any system is another issue of concern that is on par with safety and environmental issues. The leakage of hydraulic fluid causes a huge amount of damage to different devices that are connected to the main system. Such damages affect the overall development process in a significant manner, which will have an heavy impact on the outcome.
Industrial and hydraulic hose maintenance can be done by following certain tips and measures that help enhance the performance of systems. Effective preventive measures can be taken through proper analysis and inspection to prevent any kind of future harm that might come up during the process. Important tips to be followed to ensure industrial and hydraulic hose maintenance and high performance of the overall system are as follows:
Visual inspections form an integral part of preventative maintenance, as such regular inspections will help in identifying damages and other issues that require fixing. If any kind of sign or unusual performance is seen, then replacement and repair need to be done as needed. Signs like a leak in the hose, fitting displacement, damaged covers, fittings, and so on have to be repaired as needed.
Each stainless steel hydraulic hose and fitting has an expected lifespan, which needs to be identified to see how long a particular hose will last considering different functions. Tracking the life span of the hose helps to know the ideal intervals for inspections and to see if any cuts or corrosion have happened at each stage of the lifespan. This will help in preparing a proper schedule that includes different functions at each stage, which improves the overall functioning of the machine.
The tests conducted on each hose system by operating at a high working pressure and checking for leaks help evaluate the whole system&#;s performance. While such tests are conducted, safety precautions must be taken and the pressure has to be maintained at safe levels to prevent any harmful impact due to malfunction of the device.
Replacement is an inevitable part of system functioning as there is a high chance of a breakdown or any such malfunction over time even if high maintenance and precautions are taken. Hence, replacing such parts at regular intervals is essential to ensure the smooth functioning of the system and reduction in any kind of injuries or damage to people or the system.
While maintenance of the stainless steel hydraulic hose is carried out, it is important to analyse the data regularly to evaluate the performance of the system and to see if any alterations have to be made to the existing system. Analysing the data concerning system functions, replacement, inspections and so on will help in a better understanding of the overall functioning of the system. It also helps to determine if each device is working as per the expectations. Such monitoring and observation of data need to be done based on the functioning and nature of different components involved in a particular system.
It is always better to keep spare parts of stainless steel hose assemblies in hand by maintaining an inventory for the same to prevent any kind of delay that might happen due to the lack of essential parts of the device. Fast replacement can be done through the availability of apt parts which can be used when required as per the demand of the situation. In addition to having an inventory, it is always better to order replacements to carry out the replacement tasks effectively and fulfil the entire process.
Want to Extend Stainless-Steel Hose Performance
The significance of the stainless-steel hydraulic hose and the need for proper maintenance of the same can be identified through the nature of different processes and functions concerning the same. The importance of stainless steel hose hydraulics can be seen while dealing with the development of various devices where there has been an increase in the demand for the same for different applications.
Custom stainless steel hydraulic hoses which are developed based on the needs and requirements of customers help in providing apt services for the fulfilment of various functions. The issues concerning stainless steel hydraulic hoses and fittings are considered based on system functions where preventive measures are taken with the help of expert professionals and the use of high-performance tools and techniques.
As a stainless steel flexible hose manufacturer, we provide quality services to customers where apt solutions as per their needs and requirements are provided along with recommending apt tools and techniques to be used.
For more information, please visit Interlock Integrated Hose Fittings.