How to choose when buying hydraulic hose
The hydraulic hose is an important connection point in the hydraulic system and equipment. The hydraulic hose that can be connected to the hydraulic hose is an important connection part in the hydraulic system and the equipment. It can withstand high pressure and can be easily disassembled. It is widely used in the hydraulic industry.
The hydraulic hose is composed of the rubber layer inside and outside the mountain and the steel wire braided layer. According to the different receiving pressure of the hydraulic hose, the number of steel wire layers inside is different. The ordinary steel wire layer ranges from one layer to six layers, and the accepted pressure can reach 60mpa. The inner layer is rubber-flavored, resistant to mineral oil, bio-oil, synthetic rubber with good shrinkage, and the outer layer is wear-resistant and anti-aging rubber. Intermediate high tensile steel wire wrap. Suitable medium for hydraulic hose: mineral oil, oil-water mixture, polyethylene glycol motor oil, rapeseed oil, etc. Suitable working temperature for commonly used hoses: -40 degrees to 100 degrees, with a maximum temperature of 125 degrees.
The hydraulic hose is composed of inner and outer rubber layers and inner steel wire braided layers. According to the different receiving pressure of the hose, the number of inner steel wire layers is different. The ordinary steel wire layer ranges from 1 to 6 layers, and the accepted pressure can reach 60MPA. The inner rubber of the hydraulic hose is mineral oil, bio-oil resistant, synthetic rubber with good shrinkage, and the outer layer is wear-resistant and anti-aging rubber. In the middle is the high tensile steel wire winding layer. Suitable media for hydraulic hoses are: mineral oil, oil-water mixture, polyethylene glycol base oil, synthetic fat base oil, rapeseed oil, etc. The suitable working temperature of the commonly used hose is: -40℃--100℃, and the maximum temperature is 125℃.
The correct choice of hose can ensure the safety of the entire hydraulic system, reasonable layout space, and better control of costs. Mainly pay attention to the following points:
First, according to the pressure of the system, choose the number of layers of steel wires in the hose, the higher the pressure, the more layers of steel wires. Each hose has a maximum working pressure, and the burst pressure of the hose is 4 times the maximum working pressure. The higher the pressure resistance of the hose, the higher the price, so according to the actual system pressure, the maximum working pressure of the selected rubber hose should be higher than the actual working pressure. If the shock pressure of the system is frequent, choose a hose with special pulse resistance.
Second, the inner diameter of the hose is selected according to the flow rate. If the diameter of the tube is too small, the flow rate of the medium in the tube will increase, which will cause the system to heat up, reduce the efficiency, and generate excessive pressure drop, which will affect the energy of the entire system. If the diameter of the tube is too large, it will increase Cost, so the inner diameter of the hose should be appropriate. When the hose is fixed with a hose clamp or the hose passes through a steel plate at an equal distance, also pay attention to the outer diameter of the hose.
