212 Series

212 Series

Category:Reactor Seal Series

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

1. Partially balanced,
2. Single-face mechanical seal
3. Multi-spring

Cooperative Consulting

Detailed introduction

Key selling points: Exclusive for enameled glass reactors + Single-end face balancing + Suitable for hazardous media + Customized materials + Reliable sealing
The Model 212 mechanical seal is custom-designed specifically for glass-lined reactors! Featuring a single-face balanced design, it provides precise compatibility with flammable, explosive, toxic, and highly corrosive media. It is widely used in industries with stringent sealing requirements, such as chemical processing, pharmaceuticals, and petroleum.
✅ Core Structure and Advantages
▶ Single-end face balancing design: The atmospheric end is balanced, while the process fluid end is unbalanced; sealing is achieved by the pressure difference between the seal liquid and the process fluid.
▶ Sealing fluid circulation: An additional circulation system is required. The sealing fluid pressure should be 0.05–0.2 MPa higher than the pressure inside the reactor, thereby forming a stable liquid film.
▶ Multi-spring + Transmission Sleeve: Ensures uniform sealing force, guarantees synchronous rotation of the seal with the shaft, and ensures stable operation under complex working conditions.
▶ Customized materials: Friction pairs and auxiliary seals can be selected—such as corrosion-resistant graphite or ceramics—based on the properties of the medium, ensuring more precise compatibility.
▶ Applicable scenarios: Service conditions for glass-lined reactors in industries such as chemical engineering, pharmaceuticals, and petroleum—applications that demand extremely high sealing performance.
🔥 Top Choice for Glass-Lined Reactors
Dedicated compatibility + excellent corrosion resistance, reliable sealing, and a high safety factor—making it the reassuring choice for hazardous media applications!

Applicable host


212 Series

Product Features


Corrosion-resistant

Use parameters


1. Medium: Corrosive liquid free of suspended particles
2. Operating pressure: 0~0.5 MPa
3. Operating temperature: -30~180°C
4. Linear velocity: ≤1 m/s

Keywords:212 Series

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