AS 8B1D
Astra Seals AS 8B1D Mechanical Seal for Boiler Feed Pumps and Power Plants. Single end, multiple springs, balanced, independent rotary direction, coil driven. Simple and reliable transmission, easy to install with stable sealing performance and long life. Inner diameter: 50 mm to 200 mm. Pressure: ≤2.5 MPa, Temperature: ≤220°C, Linear Speed: ≤30 m/s. Standard: API682. Widely used in boiler feed pumps for power plants, booster pumps and other medium pressure high speed applications.
Materials
Rotary Face / Stationary Face / Elastomer / Spring / Metal Parts
Carbon/TC (Rotary) / SiC/TC (Stationary) / Viton/EPDM/FFKM/Aflas (Elastomers) / SS304/SS316L/HC-276 (Springs) / 410S/SS304/SS316/SS316L (Metal Parts)
1 Variant
| Model | Materials | GA |
|---|---|---|
| 8B1D | Carbon/TC (Rotary) / SiC/TC (Stationary) / Viton/EPDM/FFKM/Aflas (Elastomers) / SS304/SS316L/HC-276 (Springs) / 410S/SS304/SS316/SS316L (Metal Parts) | — |
Operating Conditions & Materials
Pressure
2.5 MPa or less
Temperature
220 ºC or less
Linear Speed
30 m/s or less
Mediums
Water, boiler water.
Customization Available
Changes of materials for getting other operating parameters are possible. Contact us with your requirements.
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