What aspects should be considered when purchasing hydraulic seals?
1. Direction of movement
First determine the direction of movement of the seal location, such as reciprocating, rotating, spiral or fixed.
2. Sealing key
For example, it is determined that the moving point is the inner diameter rod seal or the moving point is the outer diameter piston seal.
3. Temperature grade
Consult the operating instructions of the original machine or evaluate the working temperature according to the actual working environment to determine the required materials. For the description of the temperature class, please refer to the following precautions for production users.
4. Pressure rating
Check the relevant data from the original machine instructions, or infer the working pressure level by observing the softness and structure of the original seal. For the description of the pressure level, please refer to the following precautions for production users.
Most users will choose according to the old samples used, but after using for a period of time, the original size of the seal will be greatly affected by factors such as temperature, pressure and wear. The sample selection can only be used as a reference, a better method It is the measurement of the size of the metal groove where the seal is located, and the accuracy will be higher.