Double Cartridge Mechanical Seal

Reliable Double Cartridge Mechanical Seal for Enhanced Sealing Control and Protection

The double cartridge mechanical seal is designed to contain two sealing surfaces in a single cartridge. Buffer or barrier fluid can be used in this configuration which provides better sealing advantages and environmental protection than single seals can provide. Additionally, this design will give added stability in operation and better sealing reliability even in severe conditions.

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Advantages of Double Cartridge Mechanical Seal

Reduction of Installation Variability

Cartridge mechanical seals are factory pre-assembled. This reduces variability when installing the seals.

Flexibility Within Structural Configurations

This category of product includes both single cartridge and double cartridge designs, balanced designs of structures for stability. Adaptability is possible within this range of structures when the operating conditions change.

A Single Cartridge Seal Can Be Used For Multiple Applications

Cartridge mechanical seals are designed to work with two different kinds of face materials and/or secondary seals for use with Hydrocarbons, Water, Oils, and some Corrosive and/or High Temperature Fluids.

Double Cartridge Mechanical Seal Applications

The primary application for double cartridge mechanical seals is in centrifugal pumps that process chemicals, which require stable sealing and controlled leakage. Standardized dimensions and balanced designs provide compatibility for feed pumps, reflux pumps and circulation pumps rated for different temperatures and pressures, compared to other sealing options.

Cartridge mechanical seals are selected for clean or lightly contaminated media when used in water supply and most industrial pump applications. Their compact design and ease of installation are advantageous for many HVAC applications, circulating cooling water, or irrigation equipment.

In high-temperature oil and other thermal fluid systems, some cartridge mechanical seal designs can be used when matched with appropriate face materials and secondary seals. These cartridge seals are used in refineries, power plants and thermal fluid systems to provide stability in operation and control of excessive heat build-up.

FAQ

What is a cartridge mechanical seal?

The cartridge mechanical seal is made up of all components already assembled in the factory. These include two separate seal faces, spring or bellow connection, gland connector and sleeve.

What is the difference between a single cartridge mechanical seal and a double cartridge mechanical seal?

Single cartridge mechanical seals are often used for most fluids and moderate operating conditions, while double cartridge seals are more reliable at keeping any of the three sealed for longer periods of time, or where environmental factors such as excessive heat could damage the single cartridge seal.

Are cartridge mechanical seals appropriate for pumps that handle chemicals?

Cartridge mechanical seals are suitable for the vast majority of pumps operating in Chemical Process applications provided that the construction and materials used support the pumping application.

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Oct

International Bio-Fermentation Exhibition

Discover how Jiangsu Golden Eagle showcased cutting-edge fluid machinery at the 2025 Jinan Bio-Fermentation Exhibition, driving innovation and industry collaboration. Learn more about our solutions.

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Precise Collaboration, Navigating New Frontiers

How cross-departmental teamwork drove success in a high-stakes mechanical seal project. Discover our proven process for on-time, precision delivery. Learn more now.

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The 9th China (Zibo) Chemical Technology and Equipment Exhibition

Discover how Golden Eagle showcased cutting-edge chemical technology solutions at Zibo's premier industry event, earning acclaim and new partnerships. Learn more about our innovations in chemical, power, and petroleum sectors.

What Our Customers Say

John

"Installation was easy, and there was very little time spent on commissioning due to the preset design."

Alen

"The replacement of a failed seal was completed quickly and operated as expected without a loss of sealing ability during normal operation."

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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.

Double Cartridge Mechanical Seal | Reliable Sealing Solutions

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