Garlock PS-SEAL® Dual Tandem Reverse

Maximum sealing performance for complex applications.

The Dual Tandem Reverse configuration combines two sealing lips in a tandem arrangement with a reversed lip orientation. This design delivers exceptional sealing performance in applications with alternating pressure directions, high rotational speeds, and increased demands for gas or fluid tightness.

Features:

• Dual lips for enhanced sealing reliability

• Reversed lip for pressure from outside to inside

• Suitable for dry and lubricated conditions

• Pressure-resistant up to 25 bar (depending on version)

Benefits:

• Ideal for dynamic processes with alternating pressure directions

• Extended service life thanks to dual lip configuration

• Excellent for vacuum applications and gas sealing

• Flexible design based on PS-SEAL Special

Applications: Vacuum systems, pharmaceutical and biotechnological processes, chemical installations, compressors and pumps in gas-tight applications.

Material options sealing lips:

GYLON® BLACK (Graphite)
Standard material for lubricated applications.
✔ Excellent for lubricated conditions
✔ Low friction and high wear resistanc
✔ Good chemical resistance
✘ Not FDA-compliant

GYLON® WHITE (Barium Sulfate)
Designed for food, pharmaceutical, and beverage industries.
✔ FDA and EN1935 compliant
✔ Suitable for food, pharma, and beverage applications
✔ Partially suitable for dry running

GYLON® BLUE (Glass Microspheres)
Highly flexible material with outstanding dry running performance.
✔ FDA and EN1935 compliant
✔ Very flexible (high recovery capacity)
✔ Best choice for dry running
✔ Ideal when shaft roundness is poor

GYLON® BROWN-WHITE (Style 3549)
For abrasive applications in food and pharmaceutical sectors.
✔ High wear resistance in abrasive media
✔ Suitable for food and pharma
✔ FDA-compliant

F (Econol)
For high-speed, dry running, and gas-tight applications.
✔ FDA and EN1935 compliant
✔ Excellent dry running characteristics
✔ Ideal for vacuum applications
✔ Best choice for high speeds and gas sealing

MS (Molybdenum Disulfide)
For use with abrasive media.
✔ Suitable for abrasive conditions
✔ Enhanced wear resistance

KF (Carbon Fiber)
For partially abrasive media and dry running.
✔ Good dry running performance
✔ Suitable for semi-abrasive applications