Carbon Floating Ring Seals- DC72
Performance Capabilities:
Pressure: ≤4.0 MPa
Temperature: ≤590°C
Linear Speed: ≤300 m/s
Materials :
Metallic Components: 1Cr13, 304, 316L, 2507, TA2
Spring: 316L, Hastelloy C-276
Seal Rings: Graphite、PTFE、PEEK
Elastomer Options: FKM、FFKM、EPDM、NBR
Mediums:
Suitable for hazardous process media including coal gas, nitrogen, steam and other flammable/explosive or toxic gases.
Typical Applications:
• Centrifugal fans & blowers
• Roots blowers
• Low-pressure steam fans
• Axial fans
• Centrifugal compressors
• Centrifuges
• Dryers
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DC72 Carbon Floating Ring Seal designed in accordance with API 692 as a replacement for labyrinth and gland packing , rated for 4.0 MPa. The assembly includes a sleeve, segmented seal rings, seal ring holder ,auxiliary seals, seal gland, mounting plate, and drive mechanisms.
Technical Features:
1.Seal rings running contact-free.
2.High-strength, high-performance sealing materials for optimal performance.
3.Very small operation gap – low leakage.
4.Shaft sleeve with advanced wear and corrosion resistance treatment to prevent scoring.
5.Long-term operation time.
6.Mounting types: Flanged, Through-bore, Spigot
Solution Selection:
DC72-II: 2 seal rings for air transfer or non-critical leakage service
DC72-III: 3 seal rings for general non-hazardous process gases
DC72-IV: 4 seal rings for low-pressure, low-hazard process gases
DC72-V: 5 seal rings for low-pressure steam & hazardous gas transfer
DC72-VI: 6 seal rings for enhanced low-pressure steam and low-pressure hazardous gas service
DC72-VII: 7 seal rings for steam and hazardous gas transfer
Key Advantages:
• Longer service life and lower leakage rates than DC71 carbon floating ring seal.• FDA-compliant materials available for food/pharmaceutical gas/steam applications
Standard Support System:
With DERUI’s GCS74 nitrogen pressurization support system.
Custom configurations available per specific process requirements.