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Rubber Hose Assembly
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The hose assembly is an auxiliary device in the hydraulic system used to connect various components. It is made of high-pressure steel wire braided/wound hoses and steel joints through a crimping process. The working temperature range is from -40℃ to +100℃. Its core components include:
Structural composition
The main body of the hose
Inner rubber layer: synthetic rubber resistant to liquid corrosion, in direct contact with the transmission medium .
Reinforcing layer: Steel wire braided or wound structure from layer I to layer VI. The more layers there are, the stronger the pressure-bearing capacity (for example, six-layer winding is suitable for ultra-high pressure environments) .
Outer rubber layer: weather-resistant synthetic rubber, protecting the internal structure from environmental erosion .Connection accessory
Steel components such as joints and flanges are fixed to the rubber hose through the crimping process to ensure sealing and connection reliability .
Application fieldIt is mainly used in scenarios such as construction machinery, oilfield exploitation, and metallurgical equipment to transmit media such as hydraulic oil, water, and gas . For example, mine hydraulic supports, ship hydraulic systems, etc. .
Key parameters for selection
Pressure rating : Dynamic pressure is usually 1/4 of the burst pressure and needs to match the system requirements .
Bending radius : It is necessary to avoid being lower than the design value to prevent damage to the rubber hose .
Chemical compatibility : Select the hose material based on the medium type (such as petroleum-based or water-based liquids) .
Standards and Markings
Implement national standards such as GB/T 3683-92.
Kjrb3-6.3 indicates a 3-layer steel wire braided hose assembly with a nominal inner diameter of 6.3 millimeters.
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Sheng Long
Coal Machinery Parts
A professional manufacturer specializing in the production and sale of coal mine accessories, high-pressure oil pipes, metal hoses and rubber and plastic products.
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