The seamless steel pipe is used as an oil pipe, and the oil leakage is often occurred after it is equipped with a clamping sleeve. The main reason is that even if the handle nut is screwed, the clamping sleeve and the steel pipe can not be riveted tightly, and still loosen. Consult: how can the tubing be chosen? The best way to cut pipes? The proper take over procedure? How to prevent rust on tubing surface?
The hardness of the clamping edge is not enough, or the steel pipe is too hard. After the assembly, the clamping edge can not cut into the pipe wall to form a seal. Solve: replace the qualified card sleeve.The end face of the steel pipe is not vertical or clean, which hinders the proper installation of the pipe. Solution: carefully clean the end face before installation.The joint body and the steel with different axis, leading to the assembly is not correct, extrusion is not tight, at this time can be found in the card set apart and cut the pipe wall, left the marks of a single whole foot ring groove. Solution: when installing, make sure the joint is coaxial with the steel symbol.
Main reasons and troubleshooting methods of oil leakage in sleeve type pipe joint:The card sleeve type pipe joint with highest accuracy requirements (diameter > drawn tube. When the cold drawn pipe and the sleeve matching parts are not closed, the strain has an axial pin (the outer diameter of the pipe and the inner diameter of the sleeve), it will leak. Solution: at this time can be cut off a strain of cold drawing tube, or replace the card re assembly qualified.
The locking nut is too loose or too tight. Is not screwed tight, then the connector body and the sleeve cone is not tight, the card edge is wedged into the outer periphery of the tube to form a reliable seal; overdone, the card sets yield deformation and loss of elasticity; two cases were leaking. Solution: tighten the nut according to the required torque.
