In silicon carbide mechanical seals, the stationary ring and rotary ring are two crucial components that work together to create a seal between the rotating and stationary parts of a machine. 
The stationary ring, also known as the stationary face or seat, remains fixed in place while the equipment operates. It provides a stable surface against which the rotary ring presses to create a tight seal. 

The stationary ring is typically made of silicon carbide or another hard, wear-resistant material to withstand the friction and pressure generated during operation.
The rotary ring, also known as the rotating face or mating ring, is the part of the mechanical seal that rotates along with the shaft of the machine. It presses against the stationary ring to create a sealing interface that prevents leakage of fluids or gases. Like the stationary ring, the rotary ring is usually made of silicon carbide or a similar hard material to ensure durability and long-lasting performance in demanding environments.

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