Mechanical seals are important components widely used in various mechanical equipment to seal and protect liquids and gases inside the machine. In the mechanical seal market, there are many different models and specifications, with the two most commonly used models being 120 and 109.
120 model mechanical seal
Model 120 mechanical seal is a common mechanical seal, which usually consists of a moving ring, a stationary ring, a spring and some fasteners. This seal is suitable for liquid and gas sealing under high temperature, high pressure, high corrosive and high wear conditions. The advantages of model 120 mechanical seals include good wear resistance, corrosion resistance and high temperature stability, as well as long service life.
Model 109 mechanical seal
In comparison, the 109 model mechanical seal is a more compact mechanical seal, which usually consists of a moving ring, a stationary ring and a spring. This seal is suitable for sealing liquids and gases at lower temperatures and pressures. The advantages of the 109 model mechanical seal include small size, light weight, simple structure and easy maintenance, as well as low cost.
Summarize
In general, there are obvious differences in structure and application range between 120 and 109 model mechanical seals. Model 120 is suitable for harsher working environments, with better wear resistance, corrosion resistance and high temperature stability, while model 109 is more suitable for ordinary working environments, with small size, light weight, simple structure and easy maintenance. advantage. When selecting mechanical seals, you need to select the appropriate model based on the specific working environment and equipment requirements.