440/440M External Single Component Seal
- Designed for Corrosive Service and Metallic-Free Applications
The 440 external design is used in general chemical applications where there are corrosives and other aggressive chemicals that attack standard seal materials and where special, high-cost alloys are required. All wetted parts are sacrificial and easily replaced in a repair program. No metal parts contact the process fluid. The 440 is a low-cost replacement for seals made from expensive alloy materials.
Product Features
-
- Made to replace expensive exotic metal seals
- No metal parts contact the process fluid
- Perfect for glass lined shafts
- Drive-ring clamp for easy installation/positioning
Technical Data
| Size Range | 24 mm to 110 mm (0.937 inch to 4.500 inch) |
|---|---|
| Applicable Standards and Approvals | ISO-3069-S, ASME B73.1, ASME B73.2 |
| Variants | 440M - Mixer/Motion Version |
Materials
| Faces | CB, RSC, TC, SSC |
|---|---|
| Elastomers | FKM, EPDM, FEPM, FFKM |
| Metals | EN 1.4401 (316SS) |
| Springs | EN 2.4819 (Alloy C-276) |
Operating Conditions
| Temperature | -55 to 300 °C (-67 to 570 °F) |
|---|---|
| Speed | 20 m/s ( 4000 fpm ) |
| Speed Min (m/s) | 20 m/s |
| Notes |
Seal pressure capabilities are dependent on the fluid sealed, temperature, speed, and seal face combinations. For operation outside the limits and additional materials consult Chesterton Mechanical Seal Engineering. |
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