Model 30 – Large Size - For large shafts of 3 inches or greater in diameter. This seal uses magnetic inserts in a steel ring replacing the solid Alnico magnet design used in smaller seals. This seal can be installed into a magnetic housing (steel, for example).
Model 30 Magseals can be manufactured for shafts up to 14 inches in diameter. Consult factory for information.
Note: Magseals cannot be ordered by size alone. Even in standard configurations materials must be matched to the fluids involved. Please contact our Engineering Department at the earliest practical time during your project, and we will design a seal with materials and features suited to your operating conditions.
Other Important Parameters:
| Standard Model 30 | Special Design | |
| Maximum housing-bore fillet radius | .020″ | Consult Engineering Dept. |
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| Maximum axial shaft movement (endplay) | .010″ | .030″ |
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| Maximum radial shaft movement (eccentricity) | .005″ | .015″ or more |
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| Maximum forward pressure ΔP = P1-P2 | ~50 PSID | Consult Engineering Dept. |
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| Maximum reverse pressure ΔP = P2-P1 | 2 PSID | Consult Engineering Dept. |
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| Shaft surface finish limitations (O-ring position) | Between 32 and 63µ in Ra | Between 32 and 63µ in Ra |
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| House bore or insulator surface finish limitation (O-ring position) |
32 µ in Ra (maximum) | 32 µ in Ra (maximum) |
