Double Mechanical Seal Types Explained [5 Key Designs]

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Reliable Double Mechanical Seal Types for Industrial Pumps and Rotating Equipment

Reliable Double Mechanical Seal Types for Industrial Pumps and Rotating Equipment

Different types of double mechanical seals are based on different structural and functional arrangements to accommodate Different Operating Conditions within Pumping and Rotating Equipment. Generally, double mechanical seals are classified according to their seal arrangement and balance design, as well as their respective auxiliary support methods. The use of two sets of seal faces in double mechanical seals allows for the establishment of an intermediate space, enabling the use of buffer barriers to improve the stability and performance of seals.
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Advantages of Double Mechanical Seal Types

Modular Component Design

The components within a double mechanical seal can be replaced independently, allowing for the maintenance of individual components rather than replacing the full seal assembly.

Improved Shaft Seal Protection

Double shaft seals provide greater stability of the seal when the shaft experiences either axial or radial motion. .

Easier Standardization

Using standard sealed components simplifies both inventory management and maintenance planning in a facility that uses a large quantity of componentry

Double Mechanical Seal Types

Applications

Users looking to search for double mechanical seal types based on either design or components are also searching for double mechanical seals to help them select, maintain and replace components.

Common examples of the types of searches include: 

  • The investigation of double mechanical seals prior to upgrading a current pump or motor
  • The replacement of worn double mechanical seal components while still retaining compatibility with a current design.
  • Learning the proper configuration of double mechanical seals used in some multi-stage or unique shaft applications.
  • Conducting evaluations of each pump to balance pressure temperature and movement in each unit.

In most cases, users are looking for technical information rather than marketing or sales information, therefore it is extremely important that the technical information regarding a double mechanical seal is accurate in terms of the structure of the seal.

FAQ

How should I classify the types of double mechanical seals?

Double mechanical seals are generally classified as follows; based on seal arrangement, seal balance and whether buffer/barrier systems are used.
In general, replacing individual components from a double mechanical seal design is possible as long as they meet the original specifications of the seal.
The term double mechanical shaft seals is more accurately used to define seals that are designed to seal on shafts that have a specific set of load / structural parameters, as opposed to being an entirely new seal type.

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What Our Customers Say

John

"With the full range of double mechanical seal components available to us, our process for maintaining our double mechanical seal was simplified."

Rachel

"By knowing the type of double mechanical seals we have, we will not have to unnecessarily replace parts."

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Why Choose Us

Why Choose Us

Jiangsu Golden Eagle Fluid Machinery Co. Ltd. is a leading global manufacturer of fluid sealing products, and one of China's earliest companies to engage in the mechanical seal industry. We have more than 50 years of manufacturing experience and full capability to supply our customers with a wide range of sealed products.

Jiangsu Golden Eagle's engineering team also provides complete engineering support from the initial design through the final installation, to ensure every customer has an efficient, secure, and easy-to-use sealing system.