Basic knowledge of piston seals

Installation points for piston seals:

1. Make sure that the cylinder barrel has a lead-in chamfer; if not, please use a mounting sleeve.

2. Deburring and chamfering or rounding of sharp edges to cover the threaded end of the screw.

3. Remove machining residues like chips, impurities and other foreign particles, and clean all parts.

4. It will be easier to install the seals if they are oiled or greased. Compatibility between seal materials and these lubricants must be observed. Do not use greases with solid additives such as molybdenum disulfide or zinc sulfide.

5. It is recommended to use installation tools without sharp edges. If installation tools cannot be used to complete the installation, please be sure to observe the following points: 1. Use oil, water, or use a hot air blower to heat to 80 ℃ to 100 ℃ (approximately 8~10 minutes for it to expand and soften, then it will shrink to its original shape on its own) It is easier to install. 2. Use a tool without sharp edges to expand the seal ring 3. Use a separate recovery tool to complete the leveling of the seal ring, or use a cylinder with a lead-in chamfer to level the open groove installed in the open groove Installation in the groove is simple and the installation sequence is consistent with the configuration of the seals. When installing, the seals should be flat, and no twisting is allowed. During the final installation (before the piston is loaded into the cylinder), the elastomer- or spring-forced seal must be leveled and rounded to prevent the seal from being cut or bitten. This can also be achieved by using a cylinder barrel with a sufficient length of lead-in chamfer or by using a levelling sleeve.