
Astra Seals AS 60A-51C and 60B-51B Mechanical Seal for Roots Blowers, High Speed Pumps and Gearboxes. Single end, multi springs, balanced, independent rotary direction, still structure. Compact and short structure with pre-assembled compensation components. Balanced seal face load for high speed operation. Inner diameter: 15-80 mm. Pressure: 0~3.0 MPa, Temperature: -20~180°C, Linear Speed: ≤100 m/s.
Rotary Face / Stationary Face / Elastomer / Spring / Metal Parts
9Cr18/TC/SiC (Rotary) / Carbon/SiC (Stationary) / Viton/EPDM/FFKM/PTFE (Elastomers) / SS304/SS316/HC-276 (Springs) / 410S/SS304/SS316L/HC-276 (Metal Parts)
| Model | Materials | GA |
|---|---|---|
| 60A-51C & 60B-51B | 9Cr18/TC/SiC (Rotary) / Carbon/SiC (Stationary) / Viton/EPDM/FFKM/PTFE (Elastomers) / SS304/SS316/HC-276 (Springs) / 410S/SS304/SS316L/HC-276 (Metal Parts) | — |
Pressure
0 ~ 3.0 MPa
Temperature
-20 ~ 180 ºC
Linear Speed
100 m/s or less
Mediums
Oil and other chemical mediums.
Customization Available
Changes of materials for getting other operating parameters are possible. Contact us with your requirements.

Astra Seals AS H6 Customized Stationary Ring Mechanical Seal. Single end, wave spring, balanced, independent rotary direction, static compensation unit structure. Very small operating length, suitable for replacing outerframework oil seals for high speed pump gearboxes. All compensation components preassembled, compact and easy to install. Rotary ring fully customizable based on sealing chamber. Inner diameter: 15 mm to 100 mm. Pressure: ≤5 MPa, Temperature: 40~180°C, Linear Speed: ≤50 m/s. Standard: DIN

Astra Seals AS 07J07D Double Mechanical Seal for Roots Blowers, High Speed Pumps and Gearboxes. Single end, multi springs, balanced, independent rotary direction, still structure. Compact and short structure with preassembled compensation components. Balanced seal face load for high speed operation. Inner diameter: 1580 mm. Pressure: 0~0 MPa, Temperature: 20~180°C, Linear Speed: ≤100 m/s.

Astra Seals AS 08J08D Mechanical Seal for Roots Blowers, High Speed Pumps and Gearboxes. Single end, multi springs, balanced, independent rotary direction, still structure. Compact and short structure with preassembled compensation components. Balanced seal face load for high speed operation. Inner diameter: 1580 mm. Pressure: 0~0 MPa, Temperature: 20~180°C, Linear Speed: ≤100 m/s.
Compare adjacent seal types to find the best fit for your service conditions, pressure and temperature range.

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