AS DWB1 & DWB2
Astra Seals AS DWB1 and DWB2 Metal Bellow Mechanical Seal for Cryogenic Pumps. Single end, metal bellow, balanced, independent rotary direction, still structure. Small radial dimensions with great seal tracing ability. Metal bellow provides excellent sealing, elastic force and torque transmission. Ideal for high speed cryogenic conditions. Inner diameter: 25-80 mm. Pressure: ≤0.6 MPa, Temperature: -196~100°C, Speed: ≤8000 r/m.
Materials
Rotary Face / Stationary Face / Elastomer / Spring / Metal Parts
Tungsten Carbide (Rotary) / Carbon (Stationary) / PTFE (Elastomers) / Inconel718 (Springs) / SS316L/Tin-bronze (Metal Parts)
1 Variant
| Model | Materials | GA |
|---|---|---|
| DWB1 & DWB2 | Tungsten Carbide (Rotary) / Carbon (Stationary) / PTFE (Elastomers) / Inconel718 (Springs) / SS316L/Tin-bronze (Metal Parts) | — |
Operating Conditions & Materials
Pressure
0.6 MPa or less
Temperature
-196 ~ 100 ºC
Linear Speed
8000 r/m or less
Mediums
Liquid nitrogen, liquid oxygen, and liquid argon.
Customization Available
Changes of materials for getting other operating parameters are possible. Contact us with your requirements.
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