Severe deformation of the Cutting ring during pre-assembly will result in loss of sealing action
1. Prohibit the addition of sealant and other fillers,, the cutting ring fitting coated with sealant to obtain a good sealing effect, the result of sealant was washed into the hydraulic system, resulting in hydraulic components hole blockage and other failures.
2.Pre-assembly of the cutting ring is an important link that directly affects the reliability of the seal. The fitting with a small pipe diameter can be pre-assembled on the bench vise. The specific practice is to use a joint as the body, the nut, cutting ring compression to the tube can be. There are mainly cutting ring type straight through pipe connectors, cutting ring end straight through to connect the head, cutting ring type tee pipe joints and other types.The correct approach is that one end of the pipe is connected with what kind of joint body, and the corresponding connection end is preassembled with the same type of joint, so that the problem of leakage can be avoided to a large extent.
3.When connecting pipeline, the tube should have enough deformation margin to avoid subjecting the tube to tensile force; it should avoid subjecting it to lateral force, which will cause poor sealing; it should be good at once and avoid disassembling several times, otherwise it will also make the sealing performance worse.
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