Seal to prevent fluid or solid particles from the adjacent joint surface and to prevent leakage between the outside world and other impurities such as dust and water intrusion equipment components within the material or parts. The performance of various seals of different factors, such as mechanical seal (packing, etc.) factors are temperature, medium, wear, exposure to stress.

 Seals for different purposes, seals broadly categorized:

 1, according to the role of Category: divided into shaft seals, hole seals, dust seals, guide ring, fixed seals, rotary seals;

 2, by material categories: into rubber seals, polyurethane seals, plastic seals.

 Storage of Seals

 1. the best seal in storage at room temperature 30 degrees Celsius, to avoid the high temperature aging of seals;

 2. seals must be stored in sealed package, to avoid the seals and moisture in the air or dust exposure;

 3. seals must avoid strong light and avoid seals being eroded or ozone in the air of premature aging;

 Common seal

 Ring (O-ring, V-ring, Y-ring, L-ring, etc.), packing, mechanical seals, oil seals, seal, packing, gasket, sealants, soft filler.