Gsj-W Step Seal for Heavy-Duty Shaft of Large Machinery

1. Purpose and performance

Suitable for one-way heavy-duty rod seals. It can be used for larger piston rod clearance and has strong extrusion resistance.

The adaptability of the working medium and the working temperature range can be changed by changing the material of the square ring, so the adaptability of the medium and the working temperature range are relatively wide.

The friction force is small, the groove is simple, and it can also be used in oily media.

It can be used in special working conditions such as extremely high speed, extremely low speed, and micro stroke.

The installation groove is small, which is beneficial to the design of the cylinder size. The seal is easy to install and generally requires no special tools.

2. Materials

Sealing ring: Filled with polytetrafluoroethylene (PTFE). According to different working conditions and sealing requirements, different filling materials and filling processes can be selected, please inquire for details.

Square rubber ring: nitrile rubber NBR, fluorine rubber FKM. The material of the square ring is determined according to the temperature and working medium of the working condition. If you are not sure, please contact us. If you need to match fluorine rubber (FKM) square ring, you need to explain before ordering.

3. Precautions:

Ⅰ. Under normal circumstances, this seal is ideal as a buffer seal, and it is not recommended to be used as a separate seal. If the retracting speed of the piston rod is greater than the extending speed, it can be used alone, but it must be used with double-lip dust-proof lock up.

Ⅱ. If the other parameters of the matched square ring are qualified, the diameter of the ring is 1-2% larger than the value listed in the sample, which will not affect the use.

Ⅲ. When installing, you can bend the sealing ring into a heart shape and put it into the groove, but there must be no creases. In the two cases shown in the figure below, A is allowed and B is prohibited.

Ⅳ. Pay attention to the direction when installing the seal, the notch corresponds to the oil pressure direction.

                                                                                                                                     （non-recoverable creases）