What is a dry gas seal?

A dry gas seal is a non-contacting mechanical seal for centrifugal compressors. Micro-grooved faces generate a thin gas film (a few microns thick) that separates the rotating and stationary rings, eliminating face wear and process gas leakage.

Are Astra dry gas seals API 692 compliant?

Yes. Our tandem and double-opposed dry gas seals meet API 692 for centrifugal and axial compressors, including barrier gas, separation gas, and vent panel arrangements.

Do you supply the complete seal support system?

Yes — we supply gas conditioning panels, filtration, pressure regulation, and monitoring instrumentation matched to the seal package. See our Support System category.

What compressor OEMs do you cross-reference?

We cross-reference John Crane Type 28, EagleBurgmann DGS, Flowserve GaspacTM, Siemens, Elliott, MAN, Dresser-Rand, and Solar Turbines dry gas seal assemblies.

What is the typical lead time?

Standard cartridge and component seals ship in 2–4 weeks. Custom-engineered designs typically take 6–10 weeks. Emergency and expedited production is available on request.

Dry Gas Seals — API 692 Compressor & Pump Seals

Showing 12 of 19 products

DGS for Compressors

3 product families

AS GASPAC-L-21

GasPacD Doubleended DGS for Howden Screw Compressors.

1 variantGasPac Dry Gas Seal (equivalent to Flowserve GasPac Series DGS), Howden Screw Compressors

AS GasPac T-093

GasPacT Series DGS for Compressors — No pipeline nitrogen available on site, a dry gas sealing structure without an intermediate labyrinth.

4 variantsGasPac T DGS for Replacing Flowserve GasPac T-093

AS T28XP

T28XP + F93R Series DGS with Barrier Seal — HighTemperature, HighPressure Dry Gas Seals for Ebara Turbine Compressors.

6 variantsT28XP Dry Gas Seals (equivalent to John Crane Type 28XP DGS), Ebara Turbine Compressors

DGS for Pumps

10 product families

AS 2800E

The seal adopts a cartridge structure, which can meet the installation requirements of various sealing chambers.

1 variantEquivalent Seal for John Crane 2800E Dry Gas Seal for Pumps

AS JC DGS B285-27

The Type 285 can safely seal the most common industrial liquid gasses, such as liquid nitrogen, oxygen, argon and carbon dioxide.

1 variantCryogenic Pumps

AS GF200

GF200 Series Doubleended DGS for Pumps — The seal adopts a cartridge structure, which can meet the installation requirements of various sealing chambers.

1 variantGF200 Dry Gas Seal (equivalent to Flowserve GF200 Series DGS)

AS DGS-P1

Singleended noncontacting dry gas seal designed for centrifugal and process pump applications. Features spiralgrooved technology for gas film lubrication, ensuring zero emissions and extended service life.

1 variantCentrifugal & Process Pumps

AS DGS-P2

Heavyduty doubleended dry gas seal for highpressure pump applications. Robust cartridge design with noncontacting gaslubricated faces for frictionfree operation and zero product contamination.

1 variantHigh-Pressure Process Pumps

AS GF200-P

Pumpoptimized variant of the GF200 dry gas seal. Cartridge design with spiralgrooved technology for noncontacting gas film operation, tailored for pump sealing requirements.

1 variantGF200 DGS for Pumps (equivalent to Flowserve GF200 Series)

AS 28SC-8B1

Dry gas seal assembly featuring precisionmachined face rings with spiral groove pattern for reliable noncontacting operation in process pump applications.

1 variantProcess Pumps

AS 2800E-P

Pumpspecific variant of the 2800E dry gas seal. Pressurized dual cartridge design with spiralgrooved rotating face for noncontacting gas film operation.

1 variantEquivalent Seal for John Crane 2800E DGS for Pumps

AS Cryogenic-P

Dry gas seal designed for cryogenic pump applications. Safely seals common industrial liquid gases at extremely low temperatures.

1 variantCryogenic Pumps

Dry Gas Seal