For High- and Ultra-High-Pressure Multi-Phase and Supercritical Fluid Services
High-Pressure Gas-Lubricated Tandem Cartridge Seal
For High- and Ultra-High-Pressure Multi-Phase and Supercritical Fluid Services
Keep process pumps cooler, cleaner, and running longer—without the burden of liquid barrier systems. Flexaseal’s Style FGS uses precision, non-contacting gas-lubricated faces and a compact double cartridge design to minimize friction and heat generation, reduce nitrogen consumption, and prevent cross-contamination or external emissions. With a clean, regulated nitrogen barrier gas supplied by a simple gas panel, FGS delivers reliable sealing performance across industrial hydrocarbon, chemical, and high-purity applications—while helping you lower energy use and extend MTBR.
Style FGS
Design Features & Benefits
WHY USE FGS?
- Extended MTBR — non-contacting faces eliminate friction and wear.
- Run-dry tolerant — faces generate no heat and require no cooling.
- Assured containment — nitrogen barrier gas prevents cross-contamination and external emissions.
- Low leakage rates — helps keep nitrogen use down and minimizes gas introduced to process.
- Energy savings — non-contacting faces reduce power consumption.
- Compact installation — fits a wide variety of common process equipment.
Specifications
Operating Parameters
| Max temperature: | 390 °F (200 °C) |
| Min barrier gas pressure: | 60 psi (4.1 bar) |
| Max barrier gas pressure: | 400 psi (27.6 bar) |
| Min barrier gas pressure above process: | 45 psi (3.1 bar) |
| Max speed: | 5,000 fpm (25.4 m/s |
| Min rotational speed: | 1,200 RPM Extremes are independent; contact Flexaseal regarding combined limits |
Materials of Construction
| Rotary faces: | Sintered silicon carbide, tungsten carbide |
| Stationary faces: | AI carbon |
| Elastomers: | FKM, EPDM, TFEP, Buna, Neoprene, FFKM |
| Springs: | Hastelloy® C-276 |
Downloads
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Depending on your specific needs and application, Flexaseal can help you identify the ideal products. Contact us to tell us about your needs and request a quote.
