Design Features：
1. Double-End Back-to-Back Structure: This unique structure allows the seal to withstand bidirectional pressure, effectively balancing axial forces and enhancing seal stability and reliability. During equipment operation, regardless of the direction of pressure, the sealing performance remains unaffected, reducing the risk of leakage.
2. Non-Contact Operation of Sealing Surfaces: The sealing faces remain in a non-contact state during operation, avoiding the wear problems of traditional contact seals and significantly extending the seal’s service life. Simultaneously, it reduces frictional heat generation and energy consumption, improving equipment operating efficiency.
3. Flexible Groove Design: The groove design allows for unidirectional or bidirectional rotation, adapting to the operational needs of different equipment. This flexibility enables the double-end dry gas seal to be widely used in various types of gas compressors and other rotating equipment.
4. Rotating Ring Outer Peripheral Covering Structure: The outer periphery of the rotating ring acts like a robust “protective armor,” reducing secondary damage to the seal after seal failure. When seal abnormalities occur, this structure effectively protects critical components, reducing maintenance costs and equipment downtime.
5. Superior Polymer Sealing Ring Performance: Polymer sealing rings possess excellent temperature resistance, pressure resistance, and corrosion resistance, enabling stable operation in harsh environments with high temperatures, high pressures, and corrosive gases. This provides strong assurance for reliable operation of the seal under complex working conditions.
6. Convenient Container Design: The container design makes seal installation and removal easier and faster. Operators can easily perform seal replacement and maintenance, reducing equipment downtime and improving production efficiency.
Operating Parameters:
- Wide Temperature Range: Operates normally within a wide temperature range of -160℃ to 260℃, maintaining good sealing performance in both low-temperature liquefied gas environments and high-temperature process gas environments.
- Strong Pressure Adaptability: Capable of withstanding pressures from 0 to 2.0 MPa, meeting the sealing requirements of equipment under different pressure conditions and ensuring no gas leakage.
- Good Speed and Shaft Diameter Compatibility: With a speed not exceeding 180 m/s and a shaft diameter range of 25-400 mm, it is compatible with various equipment specifications, exhibiting strong versatility.
Product Description：
- Sealing Principle: Nitrogen gas is introduced between two sets of seals to form a reliable plugging seal system. Nitrogen acts as the sealing gas, effectively preventing leakage of process gases. This design cleverly utilizes the properties of gases to achieve highly efficient sealing.
- Application Advantages: It allows trace amounts of nitrogen gas to enter process, flammable, explosive, and toxic low-pressure media with zero leakage. This is crucial for processes with extremely high sealing requirements, ensuring production safety and preventing environmental pollution.
- Application Equipment: Primarily used in equipment such as gas compressors to provide sealing assurance for stable equipment operation. During gas compression, it ensures that gas does not leak within the compression chamber, improving compression efficiency and reducing energy consumption.
- Gas Classification Explanation: A is the pre-sealing gas, providing initial sealing and protection; B is the sealing gas, directly participating in the sealing process to prevent process gas leakage; C is the leaking gas, which can be handled with appropriate measures if a very small amount of gas leaks; D is the isolation gas, further isolating the process gas from the external environment and enhancing the sealing effect.
