GSS
- Extended service life and higher MTBF achieved through precision face topography, ensuring seal face liftoff to prevent wear.
- Optimized efficiency with non-contacting Precision Face Topography technology, minimizing power consumption.
- Fully compliant with low-emission containment seal standards for hydrocarbon pumping applications.
- Available in multiple configurations: single compressor seal, dual pressurized barrier gas seal, or dry-running containment seal.
GLS
- Designed for high-pressure applications, operating reliably up to 86.2 bar (1250 psi) in flashing hydrocarbons.
- Enhanced longevity with zero measurable face wear, thanks to a nonclamped rotating SiC face that maintains optimal flatness.
- Configurable as a single seal, dual unpressurized seal with a liquid buffer, dual unpressurized seal with a gas buffer, or dual pressurized seal with a liquid barrier.
GSG
- Energy-efficient and safer operation using Innovative Hydrodynamic Surface Tension (HST) face topography, delivering near-zero leakage.
- High-speed reliability supported by a proprietary laser-machined wavy face for smooth performance.
- Extended durability with robust seal face materials designed for frequent start-stop cycles.
- Seamless upgrade compatibility allows direct replacement of existing gearbox seals without equipment modifications.
Need a different sealing solution? Compare with other Flowserve options:
| Seal Model | Type | Typical Use Case | Design Standard | Best For |
|---|
| GLS, GSS, GSG | OEM & Special Duty Seals | Legacy pumps, retrofit jobs, custom seal chambers | Non-standard / custom | Custom installations, unavailable spares |
| PX-61 Cartridge Seal | Heavy-Duty Standard Cartridge | Harsh conditions, abrasive media, high shaft deflection | Flowserve proprietary | Mining, slurry, general industry |
| 682 Cartridge Seal | API 682 Compliant Seal | Oil & gas, chemical, hydrocarbon services | API 682 Plan 1/2/3, Types A/B/C | Petrochemical, high-spec plants |
| Standard Cartridge Seal | General-Purpose Cartridge | ANSI pumps, clean liquids, balanced operations | Flowserve ANSI standard | Water, light chemicals, general industrial processes |
Specification
API 682
Equipment:
Integrally geared pumps
Pressure:
- 86.2 bar (1250 psi)
- GSG: up to 17.2 bag (250 psi)
Temperature: -62 to 204°C (-80 to 400°F)
Speeds:
- 1500 to 36,000 rpm
- GLS: 1500 to 26,000 rpm
Shaft Sizes: 25.4 to 31.8 mm (1.000 to 1.250 inch)
