Dry gas seals are a type of mechanical seal used in various industries, including oil and gas, chemical, and petrochemical industries. These seals are designed to prevent the leakage of gas between the rotating and stationary parts of a machine, such as a compressor or pump.

There are many typrs of dry gas seals on Lepu dry gas seal manufacturers. Such as compressor gas seal, including centrifugal compressor dry gas seal, screw compressor dry gas seal, and also pump dry gas seal, sometimes there are some metal bellows dry gas seal,  agitator dry gas seal.

Dry Gas Seals (DGS) are basically mechanical face seals consisting of a mating (rotating) ring and a primary (stationary) ring. During operation, grooves in the mating ring generate a fluid-dynamic force causing the primary ring to separate from the mating ring, thus, creating a “running gap” between the two rings.  The running gap varies from 3 to 10 microns depending on the seal type.

Dry gas seals offer several advantages including increased reliability, reduced maintenance, and lower emissions. Dry Gas Mechanical Seals are also more resistant to contamination and can operate at higher speeds and pressures. However, they require a reliable source of clean and dry gas, and proper installation and maintenance are critical for their long-term performance.