The method of installation and the possible groove types for rod seals depend on the materials, seal design and ratio between the diameter and cross-sectional height. PTFE or other harder materials may require a smaller radial depth S or even open grooves.

Installing rod seals in closed grooves

Rod seals can often be installed into closed grooves through carefully bending the profile similar to a kidney shape and then inserting it into the groove. It is very important to avoid sharp bending.

Thin and flexible profiles can be installed by hand (fig. 1 and fig. 2 ). Installation tools for TPU rod seals help to install profiles of greater section thickness (fig. 3fig. 4fig. 5fig. 6fig. 7 and fig. 8). After installation, the seal may need to be reshaped to a round form using a cone-shaped tool.

 

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fig. 1                                            fig. 2

 

 

 

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     fig. 3                                              fig. 4                               fig. 5

 

 

 

 

 

 

 

fig. 6                                        fig. 7                                      fig. 8

 

 

For PTFE seals, small diameter seals or for serial assembly, special assembly tools may be required to save time or avoid seal damage.