Types and working principle of hydraulic hose joints，1. Hose joint 2. Nut 3. Steel pipe 4. Sleeve, when nut 2 is screwed with the external thread of the joint body (piece 1), as the tightening torque increases, the outer cone of the hose joint and the steel pipe ( Part 3) The inner cone surfaces are in contact and pressed tightly, and the hose connector 1 and 3 cone surfaces are in full contact and produce greater pressure, which plays a sealing role. Due to the leverage of the cone surfaces, the pressure between the cone surfaces is greater.

Hydraulic system installation, debugging and maintenance (2),Quality inspection of pipes and joints, the pressure level of pipe joints should meet the design requirements,The material, diameter, wall thickness of the pipe, the model specification and processing quality of the joint must meet the design requirements. The tubes used must not be defective. The following exceptions are not allowed to be used,When using curved pipes, the following exceptions are not allowed,The joints used must not be defective.

Hydraulic system schematic diagrams, electrical schematic diagrams, piping layout diagrams, hydraulic components, auxiliary parts, pipe fitting lists and related component samples, etc., should be prepared in full so that engineers and technicians can be familiar with and study the specific content and technical requirements one by one.