205 Series

205 Series

Category:Reactor Seal Series

Structural Classification:Double-end face
Application Industry:
Structural Characteristics:

1. Non-equilibrium type,
2. Double-end face mechanical seal
3. Multi-spring

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Detailed introduction

Key selling points: Dual-end multi-spring design + compatible with special media + high-temperature resistance + reliable sealing
The 205 series mechanical seal is a commonly used solution for sealing agitator shafts in reaction vessels! Specifically designed for applications involving flammable, explosive, toxic, and highly corrosive media, this seal features a dual-face, multi-spring structure that ensures reliable sealing performance and is well-suited for high-temperature and demanding operating conditions!
✅ Core Structure and Sealing Principle
▶ Structural Design: Double-end face, multi-spring, unbalanced design; utilizes a transmission seat for drive, ensuring stable operation.
▶ Sealing principle: Sealing is achieved by leveraging the pressure difference between the sealing fluid within the sealing chamber and the medium being sealed. The sealing fluid requires a separate circulation system (the system is slightly complex and suitable for special operating conditions).
✅ Applicable scenarios
Specifically designed for the sealing of agitator shafts in reaction vessels, this seal is particularly suited to special sealing conditions in industries such as chemical processing and pharmaceutical manufacturing, where media are flammable, explosive, toxic, or highly corrosive, thereby ensuring production safety.
✅ Core Advantages
Custom-designed for special harsh-media environments, it features reliable sealing performance and strong resistance to high temperatures and corrosion, effectively preventing leaks of hazardous media and safeguarding the safety of the production environment.

🔥 205 Series – Preferred for Special Operating Conditions

Customized adaptation for special medium conditions, with reliable sealing and excellent resistance performance—this makes it the ideal choice for reactor agitator shafts in hazardous medium environments!

Applicable host


205 Series

Product Features


High-temperature resistant,High-pressure resistant,Corrosion-resistant

Use parameters


1. Media: Oil, water, weak acids and bases, flammable and explosive gases, etc.
2. Temperature: -20℃ to 250℃
3. Pressure: -0.1 to 0.6 MPa
4. Linear velocity: ≤20 m/s

Keywords:205 Series

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