Pipe joint plays a very important role in the hydraulic system. If the pipe joint causes leakage, it will not only reduce the efficiency, but also lead to high oil temperature rise, unstable actuator and environmental pollution. Even directly affect the normal use of hydraulic equipment, so how to improve the reliability of the joint body seal? First of all, we need to understand the sealing principle of bayonet type pipe joint.
At the top of the card sets of right side need to tighten nut under pressure, the left is squeezed into the connector body cone hole and the gap between the pipe, the card sets of male cone form taper contact sealing, the card sets of embedded inside edge of the outer wall of steel pipe, in the walls of the pipe pressure out of a cut into the seal ring groove, further tighten the nut, the card sets of central bulge slightly, produce elastic deformation, the elastic stress make the card right face and nut cone produces friction, in case of nut loose elastic deformation part can absorb vibration of hydraulic pipeline, in addition, the card sets of tail also clasp steel pipe forming a seal.