The role of mechanical seal in reactor

**Mechanical Seals in Stainless Steel Reactors**

Mechanical seals are widely used in modern reactors due to their effectiveness in preventing leaks and ensuring operational efficiency. Here's an overview of their structure and function:

1. **Static Seal (1):**

- Between the reactor's static ring seat and the equipment.

- Sealed using a general gasket.

2. **Static Seal (2):**

- Between the reactor's static ring and its seat.

- Utilizes an elastic auxiliary sealing ring to prevent leakage.

3. **Static Seal (3):**

- Between the dynamic ring and the shaft (or sleeve).

- Sealed with an "O" ring.

4. **Dynamic Seal:**

- Between the dynamic and static rings during relative rotation.

- Relies on a spring-loading device and medium pressure to maintain a tight fit.

- A thin fluid film between the sealing surfaces ensures lubrication and pressure balance, achieving an effective seal.

For stringent conditions, such as in pharmaceutical production, sanitary-grade mechanical seals can be used to comply with GMP standards.