rubber hose connecter

NegotiableUpdate on 02/07

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Nature of the Manufacturer: Producers

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Overview

Various fields of hydraulic systems

Product Details

Prevention of leakage in high-pressure hose joints

In hydraulic systems, both metal pipe fittings and hose fittings are prone to leakage. For sleeve type pipe joints, leakage is mostly caused by the loosening of the sleeve or deformation of the pipe end face due to significant external or impact forces on the pipeline. At this time, it is necessary to check whether the sleeve is out of roundness, whether the cutting edge is damaged, whether the pipe end is intact, and the degree of compression of the sleeve nut. At the same time, external forces on the pipeline should also be eliminated. For expansion type pipe joints, leakage is often caused by excessive expansion, substandard quality, or repeated disassembly, resulting in deformation or cracking of the expansion. In this case, the front end can be cut off and re expanded. If a male and female cone top pressure is used for sealing, the leakage is mostly due to damage to the two conical surfaces. Grinding sand can be used to grind the conical surfaces. In some cases where an "о" ring is used to seal against the end face or outer diameter.
Reasons for leakage of high-pressure hose joints
There are several reasons for leakage in high-pressure hose joints: leakage caused by aging or deformation of the O-ring; The assembly of the "о" ring is not in place, resulting in uneven pressure when connecting the two planes or leakage caused by cutting the "о" ring; The "о" ring is not compacted, resulting in insufficient elastic deformation and leakage; The "о" ring stopper groove is too deep, causing leakage. For this, it is necessary to reselect the "о" ring with the same outer diameter and thicker cross-section
High pressure hose connector
The sealing surface with a stop groove can be cut or ground to reduce the depth of the stop groove and provide sufficient elastic deformation for the "о" ring (compression should generally be between 0.35-0.65mm). For leaks at pipe joints using oil resistant rubber sheets, wool felt, soft steel cardboard, composite sealing gaskets or sealants, regardless of the material, the sealing components should first be checked for damage, deformation, aging, and excessive roughness, and then corresponding measures should be taken.
Installation precautions for high-pressure hose joints
(1) The hose should not be excessively bent during movement or at rest, nor should it be bent at the root. It should start bending at least 1.5 times its diameter;
(2) When the hose is moved to an extreme position, it should not be pulled too tightly and should be relatively loose;
(3) Try to avoid twisting and deformation of the rubber hose as much as possible;
(4) Rubber hoses should be kept as far away from heat radiation components as possible, and insulation boards should be installed if necessary;
(5) External damage to the hose should be avoided, such as long-term friction on the surface of the same component during use;
(6) If the self weight of the hose causes excessive deformation, there should be supporting components.