Dry Gas Seal for Centrifugal Compressors

Dry Gas Seal for Centrifugal Compressors | 50+ Years Expertise

Dry Gas Seal in Centrifugal Compressor: Reliable, Contact-Free Sealing for Modern Compression Systems

In centrifugal compressors, the function of dry gas seals is to provide a non-contact seal using an air-lubricated design, thus assuring low wear and consistent long-term operation. As a result of ongoing deployment of centrifugal compressors in the energy, petrochemical and industrial gas industries, dry gas seals are now the preferred choice of many applications requiring cleaner operations, lower maintenance and greater operational stability.

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Advantages of Dry Gas Seal In Centrifugal Compressor

High-Speed Compressor Seals

The purpose of the design is to provide stable shaft seals in both single and double seal configurations when operating high-speed compressors.

Lower Maintenance Compared to Traditional Systems

These dry seals require higher frequency maintenance cycles than traditional sealing systems found in compressors.

Increased Reliability through the Use of Seal Gas

When combining the seal gas supply with the design of a seal gas conditioning system, the reliability of the dry seals will be enhanced.

Application Scenarios Dry Gas Seal In Centrifugal Compressor

Centrifugal Compressor Systems

Centrifugal compressor systems are primarily used in upstream, midstream and downstream applications, where oil and grease are not desired; therefore, a dry, clean, stable and reliable method must be utilized for sealing the shaft of the compressor.

High-Speed Process Compressors

These types of compressors have been designed with the high-speed rotation of the shaft, along with the high gas temperature, as the primary factors eliminating the possibility of utilizing liquid lubrication.

Retrofits

When upgrading or modernizing an older compressor, to improve sealing stability and reduce the amount of leakage experienced in an operation, cartridge style designs are used as replacements.

Compressors Handling Sensitive Gases

The integrity of the process or application must be maintained by ensuring that the barrier fluid does not contaminate or interfere with the purity of the sensitive gas. Thus, the design of the dry seal uses an alternate method for sealing sensitive gases.

FAQ

How do dry gas seals improve the performance of a centrifugal compressor compared to liquid barriers?

Dry gas seals operate at higher speeds with low leakage and no requirement for a barrier liquid to maintain a seal.

Is it acceptable to have contamination in the process gas when using dry gas seals?

Contamination must be avoided at all costs. To minimize contamination, most dry gas seal systems include both a filtration stage and a separation stage. This protects the sealing surfaces from the damage of contamination.

What is needed for a properly functioning seal gas supply system?

The seal gas supply must be a source of dry, filtered and clean gas with consistent pressure to ensure that the seal continues to maintain a positive differential across it.

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What Our Customers Say

Steve

"The Engineering teams like how easy it is to install cartridge-style designs, especially when there isn't a lot of room."

Emily

"By converting from oil-seal systems to dry seals, we always have a reduction in contamination and a much cleaner operating environment."

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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.