There are many forms of card sleeve connectors, and the card sleeve is a metal ring with a sharp edge on one end of the inner circle. When connecting, first screw the joint body into the interface of the hydraulic component, then place the connecting pipe into the joint body and tighten it, and then use a nut to tighten the sleeve. During the compression process, the cutting edge of the sleeve cuts into the outer surface of the connecting pipe, forming a sealing surface. At the same time, the sleeve deforms and arches, coming into contact with the inner conical surface of the joint body to form a spherical sealing surface. Whether the cutting edge of the card sleeve can cut into the oil pipe is the key to connection and sealing, otherwise oil pipe pull-out accidents may occur during operation.

Installation steps for card sleeve connectors:

(1) According to the requirements, the pipes that need to be pickled should be pickled first;

(2) Cut the pipe according to the required length using sawing machines or specialized pipe cutting machines, and it is absolutely not allowed to use melting (such as flame cutting) or grinding wheels for cutting; Remove burrs, metal chips, and dirt from the inner and outer circles of the pipe end; Remove rust inhibitors and dirt from pipe joints; At the same time, it is necessary to ensure the roundness of the pipe;

(3) Insert the nut and sleeve into the pipe one by one, with the cutting edge (small diameter end) of the sleeve at least 3mm away from the pipe mouth, and then insert the pipe into the taper hole in the joint body until it reaches the end;

(4) Slowly tighten the nut while rotating the pipe until it stops moving, then tighten the nut 2/3-4/3 turns;

(5) Open and check if the card sleeve has been inserted into the pipe and if the position is correct. The card sleeve is not allowed to move axially and can rotate slightly;

(6) After passing the inspection, tighten the nut again.