There are several reasons for the leakage of high-pressure hose joints: "о" ring is aging or deformed, causing leakage; "о" ring is not assembled in place, so that the two planes are not flat or the "о" ring is cut to cause leakage; " The o" ring is not compacted, and the elastic deformation is insufficient, resulting in leakage; In this regard, it is necessary to re-select the "о" ring with the same outer diameter and thicker section, or the sealing plane with the spigot groove can be cut or ground to reduce the depth of the spigot groove and make the "о" The ring has sufficient elastic deformation (compression should generally be between 0.35-0.65mm).
For the leakage at the pipe joint using oil-resistant rubber sheet, wool felt, mild steel cardboard, combined sealing gasket or sealant, no matter what material it is, firstly check whether the seal is damaged, deformed, aged and rough, etc. , and then take appropriate action.