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How To Specify Hydraulic Hose Fittings

Jun. 29, 2021
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How To Specify Hydraulic Hose Fittings

Hydraulic hose fittings connect hoses to pumps, valves, cylinders, and other components used in the entire hydraulic system. These safe connections help control and direct the flow of hydraulic fluid to where it is needed, while preventing leakage and maintaining pressure safely.

Experts say it is beneficial to distinguish hoses from complete hose assemblies. Although the choice of hose is obviously important, choosing a hose without considering accessories can be a costly mistake. Any hose assembly includes accessories for specific applications. Industrial hose assemblies must have hoses, fittings, and methods to connect the fittings to the hoses. For most hydraulic hoses, the fitting has a barbed end, which is inserted into the inner diameter of the hose, and a shell or clamp, which is connected to the cover or reinforcement.

Hydraulic hoses

Hydraulic hoses

Crimping is the most common method of assembling hoses and fittings. Once the crimp specifications of the specific hose and accessories are checked, the crimping machine is adjusted to the proper crimp diameter setting. The next step is to lubricate the tube, push it into the end of the hose, and then insert the tube into the crimping die. Start the crimping device, close the mold and permanently compress the fitting onto the hose.

Many companies offer no-skive options on their hoses. Peeling refers to a process in which part of the hose cap or even the inner tube is removed-the reinforcement layer is exposed-before the hose end is connected. No-skive hose does not require this step. Many users prefer the no-slip option because it makes hose assembly faster and reduces the risk of hose damage during crimping.

Therefore, in addition to hoses, users must also choose accessories based on chemical compatibility and connection safety. In addition, it is also necessary to consider the segmentation of the application, such as operating pressure, flow capacity, environmental and temperature extremes, and operating fluids.

When installing the hose assembly, pay attention when determining the thread of the connection. Usually, it is connected from one standard to another standard port, but there is not enough contact to ensure safety. In addition, most of the accessories are certain hoses of a specific brand, and may not cooperate with other brands. Although the size of the joint usually corresponds to the size of the wire, there may still be differences in the choice of joints for the same size hose.

For safe and durable hydraulic components, the "correct" components are couplings, hoses, crimping equipment and accessories, which are designed to work together. Tolerances vary from manufacturer to manufacturer and are not interchangeable. Different components from different manufacturers may adversely affect the coupling retention. Accidental mixing and matching may cause hose rupture, joint leakage and blow-out ends, injuring or even killing workers.

We are Hydraulic Hose Fittings Suppliers. Please feel free to contact us if you are interested in our products.

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