AS Type 551
Single Coil Spring Mechanical Seal for Water Pumps, Temperature Control Pumps, Vacuum Pumps and Heat-exchange Oil Pumps. Single end, unbalanced, conical spring, dependent direction of rotation, spring transmission. Simple structure, high compatibility and stable performance with great spring compensation. Inner diameter: 10 mm to 50 mm. Standards: DIN24960, ISO3069, GB6556. Widely used in leathering, waste water treatment, plastic, and food machinery industry. Alternative to John Crane Type 551 or EagleBurgmann BT-RN.
Materials
Rotary Face / Stationary Face / Elastomer / Spring / Metal Parts
Carbon/SiC/TC (Rotary) / Carbon/SiC/TC (Stationary) / NBR/Viton/EPDM/PTFE (Elastomers) / SS304/SS316 (Springs) / SS304/SS316 (Metal Parts)
1 Variant
| Model | Materials | GA |
|---|---|---|
| Type 551 | Carbon/SiC/TC (Rotary) / Carbon/SiC/TC (Stationary) / NBR/Viton/EPDM/PTFE (Elastomers) / SS304/SS316 (Springs) / SS304/SS316 (Metal Parts) | — |
Operating Conditions & Materials
Pressure
0.8 MPa or less
Temperature
-20 ~ 180 ºC
Linear Speed
10 m/s or less
Mediums
Oil, water, weak acid, alkali, and organic solvents.
Customization Available
Changes of materials for getting other operating parameters are possible. Contact us with your requirements.
Installation Dimensions
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