Dry Gas Seal Working Principle Explained [2024 Guide]

Dry Gas Seal Working Principle: How Non-Contact Gas Sealing Ensures Reliable Compressor Performance

The dry gas seal working principle involves dry gas seals creating a controlled gas film between two machined and pre-loaded seal faces on a rotating shaft. As the shaft rotates, the specially-grooved rotating ring uses the velocity of the rotor to create an upward lifting force against the lower seal face. The difference in the gas and liquid pressure acts as a cushion to provide a non-contact seal of clean seal gas between the rotating ring and the seal faces.

Get A Quote

Advantages of Dry Gas Seal Working Principle

Low Contamination

There is no liquid barrier fluid in this type of seal; therefore there is less chance of contamination.

High-Speed Suitability

This type of seal allows for the use of high rotational speeds due to usage of a gas as the film between parts to eliminate the possibility of contact.

Application Scenarios

Technical Training and Documentation

Educational and Technical manuals for explanation of sealing systems.

Specification and Equipment Selection

To assist Engineering teams with their project planning for comparison of dry gas seals with other sealing technologies.

Maintenance and Diagnostics Procedures

Used by service personnel to examine the relationships of the operating conditions with the behavior of seals.

System Engineering and Design

To aid in determining the appropriate type of sealing technology for a particular type of compressor application.

FAQ

What are the functions of a dry gas seal?

A dry gas seal consists of two opposing spiral-grooved faces that create a gas film as a shaft rotates, which separates the two faces and reduces the likelihood of contact between them.

How is a dry gas seal different from a mechanical seal?

A mechanical seal relies on the use of liquid to lubricate the sealing surfaces, while a dry gas seal utilises a gas film for separation.

Why is operating a dry gas seal in a non-contact fashion important?

Operating in a non-contact mode will significantly reduce the heat and friction generated between the sealing surfaces, resulting in more extended service intervals.

Our Company

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.

Oct

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.

Oct

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

“There are many operational advantages dry gas seals have over contact seals in high-speed applications.“

Alen

”Increased efficiency and reduced maintenance are benefits of dry gas seals.”

Get a Free Quote

Our representative will contact you soon.

Mobile

Name

Message

0/1000

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.

Dry Gas Seal Working Principle Explained [2024 Guide]

All Categories

Dry Gas Seal Working Principle: How Non-Contact Gas Sealing Ensures Reliable Compressor Performance

Advantages of Dry Gas Seal Working Principle

Low Contamination

High-Speed Suitability