AS FR-SPG
Spiral groove pattern face ring machined from SSiC (Sintered Silicon Carbide). The spiral grooves compress barrier gas to create a lifting force for non-contacting operation.
Technical Specifications
- Material: SSiC (Sintered Silicon Carbide)
- Groove Pattern: Logarithmic spiral
- Surface Finish: Ra ≤0.1 μm on sealing face
- Flatness: ≤0.9 μm (2 light bands)
- Applicable Pressure: Up to 15 MPa
- Applicable Speed: Up to 120 m/s linear velocity
Design Features
- SSiC provides excellent chemical inertness, thermal conductivity, and hardness (HV ≥2500) for corrosive and high-temperature gas services.
- Logarithmic spiral groove pattern optimizes gas compression ratio for maximum film stiffness-to-leakage performance.
- Lightweight compared to Tungsten Carbide — reduces centrifugal stress at high rotational speeds.
- Suitable for both compressor and pump DGS applications as rotating or stationary face ring.
Materials
Rotary Face / Stationary Face / Elastomer / Spring / Metal Parts
SSiC
1 Variant
| Model | Materials | GA |
|---|---|---|
| FR-SPG | SSiC | — |
Operating Conditions & Materials
Pressure
0 ~ 15 MPa
Temperature
-196 ~ 315 ºC
Linear Speed
120 m/s or less
Mediums
Applicable to all dry gas seal media. Spiral groove pattern optimized for unidirectional rotation.
Customization Available
Available in custom diameters, groove patterns, and surface finishes. Contact us with your specifications.
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