Astra Seals AS BB47A metal bellow mechanical seal for compressors. Compact single end balanced design with welded metal bellow. No springs or dynamic elastomers for clean gas applications. Excellent for refrigeration and process gas compressors.
Rotary Face / Stationary Face / Elastomer / Spring / Metal Parts
SiC/TC (Rotary) / SiC/Carbon (Stationary) / Viton/FFKM (Elastomers) / Inconel 718 (Bellow) / SS316/HC276 (Metal Parts)
| Model | Materials | GA |
|---|---|---|
| AS BB47A | SiC/TC (Rotary) / SiC/Carbon (Stationary) / Viton/FFKM (Elastomers) / Inconel 718 (Bellow) / SS316/HC276 (Metal Parts) | — |
Pressure
0 ~ 4.0 MPa
Temperature
-40 ~ 200 ºC
Linear Speed
80 m/s or less
Mediums
Process gases, hydrocarbons, refrigerants. Metal bellow compressor seal.
Customization Available
Changes of materials for getting other operating parameters are possible. Contact us with your requirements.
Astra Seals AS CMS7001 cartridge mechanical seal for compressors. Double end, balanced cartridge design with integrated cooling jacket. Designed for demanding gas compression applications with high reliability and zeroemission requirements.
Astra Seals AS BB174 metal bellow mechanical seal for compressors. Single end, balanced, metal bellow design with no dynamic elastomer — ideal for hightemperature and corrosive gas applications. Welded metal bellow provides excellent seal tracking and eliminates fretting corrosion.
Astra Seals AS WKA1200 cartridge mechanical seal for centrifugal and turbo compressors. Double balanced cartridge with integrated bearing support. Designed for highspeed, highpressure gas compression with excellent dynamic tracking capability.
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