Working pressure: Understand the pressure range that the piston rod is subjected to during operation. High-pressure environments may require more pressure-resistant sealing technologies, such as mechanical seals or combination seals.
Working speed: High-speed piston rods require seals that can adapt to rapid reciprocating motion and reduce friction and wear. Lip seals or high-performance combination seals may be more suitable.
Working temperature: If the working environment temperature is high or low, you should choose a sealing material that can maintain good performance within the corresponding temperature range, such as high-temperature resistant polytetrafluoroethylene or low-temperature resistant rubber materials.
Medium characteristics: Consider whether the medium that the piston rod contacts is liquid, gas, or mixed medium, as well as the corrosiveness and cleanliness of the medium. For corrosive media, you need to choose a corrosion-resistant sealing material.