commonly usedferrule fittingThere is a single blade edgeferrule fittingA double-edged swordferrule fittingThe distinction.

Single blade edgeferrule fittingThe principle of action:
Insert the pipe into the joint and ensure it contacts the bottom of the joint. The right end of the sleeve is pressed down by tightening the nut, and the left end is squeezed into the gap between the tapered hole in the joint body and the pipe, forming a conical contact seal on the outer surface of the sleeve. The inner cutting edge of the sleeve is embedded in the outer wall of the steel pipe, and a closed circular groove and a circular protrusion are pressed out on the outer wall of the steel pipe to form a seal; Further tighten the nut to slightly protrude in the middle of the sleeve, causing elastic deformation. The elastic stress creates frictional force between the right end face of the sleeve and the conical surface of the nut to prevent loosening of the nut. The elastic deformation part can absorb vibrations in the hydraulic pipeline. In addition, the tail of the sleeve also tightly holds the steel pipe to form a resistance seal.

Double edged mouthferrule fittingUsing two blade inserts, namely a cutting edge and a stopping edge, the stopping edge not only forms a second seal, but also prevents the cutting edge from biting the pipe, thereby improving the joint's vibration resistance and pull-out resistance.

Card sleeve sealing is mostly a metal to metal sealing form, in order to improveferrule fittingThe sealing and reinstallability of the card sleeve now have elastic sealing rings. Replace traditional seals with elastic sealsferrule fittingThe hard sealing method used has a more ideal sealing effect and better reinstallability.

Keyword (product) link：Card sleeve type pipe joint，External thread globe valve，Explosion-proof junction box