
Astra Seals AS H10 Multi Spring Super Thin and Balanced Mechanical Seal for High Speed Pumps, Blowers, Decelerators, Gearboxes, and Rotating Joints. Single end, multi springs, balanced, independent rotary direction, still structure. Very small operating length suitable for replacing outer-framework oil seals. All compensation components pre-assembled. Inner diameter: 15-100 mm. Pressure: ≤2.5 MPa, Temperature: -40~180°C, Linear Speed: ≤50 m/s.
Rotary Face / Stationary Face / Elastomer / Spring / Metal Parts
9Cr18/TC/SiC (Rotary) / Carbon/SiC (Stationary) / FKM/EPDM/FFKM (Elastomers) / SS304/SS316/HC-276 (Springs) / 2Cr13/SS304/SS316/TA-2 (Metal Parts)
| Model | Materials | GA |
|---|---|---|
| H10 | 9Cr18/TC/SiC (Rotary) / Carbon/SiC (Stationary) / FKM/EPDM/FFKM (Elastomers) / SS304/SS316/HC-276 (Springs) / 2Cr13/SS304/SS316/TA-2 (Metal Parts) | — |
Pressure
2.5 MPa or less
Temperature
-40 ~ 180 ºC
Linear Speed
50 m/s or less
Mediums
Water, oil, acid, alkali, and other corrosive 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.
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