Performance Capabilities of Single Cartridge Seals S21
- Temperature: -40℃ to 220℃, dependent on the elastomer
- Pressure: Up to 25 bar
- Speed: Up to 25 m/s
- End play/axial float allowance ±1.0mm
Sizes of Single Cartridge Seals S21
25mm to 100mm
1” to 4”
Materials Combination of Single Cartridge Seals S21
- Face: Carbon, SiC, TC
- Seat: SiC, TC
- O-rings: NBR, EPDM, VITON, Aflas, FEP, Kalrez, Chemraz etc.
- Spring: SS316, hastelloy C
- Metal parts: SS316
Specification of Single Cartridge Seals S21
| Single Cartridge Seals by Size | d | D | D1 | L1 | L2 | L3 | C | E |
| S21-25 | 25 | 43 | 105 | 42.4 | 24.6 | 25.4 | 62 | 13.2 |
| S21-28 | 28 | 46 | 105 | 42.4 | 24.6 | 25.4 | 62 | 13.2 |
| S21-30 | 30 | 48 | 105 | 42.4 | 24.6 | 25.4 | 65 | 13.2 |
| S21-32 | 32 | 49.8 | 108 | 42.4 | 24.6 | 25.4 | 67 | 13.2 |
| S21-33 | 33 | 49.8 | 108 | 42.4 | 24.6 | 25.4 | 67 | 13.2 |
| S21-35 | 35 | 53 | 113 | 42.4 | 24.6 | 25.4 | 70 | 13.2 |
| S21-38 | 38 | 56 | 123 | 42.4 | 24.6 | 25.4 | 75 | 13.2 |
| S21-40 | 40 | 58 | 123 | 42.4 | 24.6 | 25.4 | 75 | 14.2 |
| S21-42 | 42 | 60.5 | 133 | 42.4 | 24.6 | 25.4 | 80 | 14.2 |
| S21-43 | 43 | 60.5 | 133 | 42.4 | 24.6 | 25.4 | 80 | 14.2 |
| S21-45 | 45 | 62.5 | 138 | 42.4 | 24.6 | 25.4 | 81 | 14.2 |
| S21-48 | 48 | 65.6 | 138 | 42.4 | 24.6 | 25.4 | 84 | 14.2 |
| S21-50 | 50 | 68 | 148 | 42.4 | 24.6 | 25.4 | 87 | 14.2 |
| S21-53 | 53 | 72 | 148 | 42.4 | 24.6 | 25.4 | 90 | 18 |
| S21-55 | 55 | 73 | 148 | 42.4 | 24.6 | 25.4 | 90 | 18 |
| S21-60 | 60 | 78 | 157 | 42.4 | 24.6 | 25.4 | 102 | 18 |
| S21-65 | 65 | 84.8 | 163 | 42.4 | 24.6 | 25.4 | 109 | 18 |
| S21-70 | 70 | 93 | 178 | 42.4 | 24.6 | 25.4 | 118 | 18 |
| S21-75 | 75 | 100 | 190 | 57.4 | 26.6 | 28 | 129 | 18 |
| S21-80 | 80 | 106.4 | 195 | 57.4 | 26.6 | 28 | 135 | 18 |
| S21-85 | 85 | 109.5 | 198 | 57.4 | 26.6 | 28 | 139 | 22 |
| S21-90 | 90 | 115.9 | 205 | 57.4 | 26.6 | 28 | 145 | 22 |
| S21-95 | 95 | 119.1 | 208 | 57.4 | 26.6 | 28 | 148 | 22 |
| S21-100 | 100 | 125.4 | 218 | 57.4 | 26.6 | 28 | 154 | 22 |
| Single Cartridge Seals by Size | d | D | D1 | L1 | L2 | L3 | C | E |
| S21-1″ | 1 | 1.693 | 4.134 | 1.669 | 0.969 | 1 | 2.44 | 0.52 |
| S21-1.125″ | 1.125 | 1.811 | 4.134 | 1.669 | 0.969 | 1 | 2.44 | 0.52 |
| S21-1.25″ | 1.25 | 1.96 | 4.33 | 1.669 | 0.969 | 1 | 2.64 | 0.52 |
| S21-1.375″ | 1.375 | 2.086 | 4.449 | 1.669 | 0.969 | 1 | 2.75 | 0.52 |
| S21-1.5″ | 1.5 | 2.2 | 4.842 | 1.669 | 0.969 | 1 | 2.95 | 0.52 |
| S21-1.625″ | 1.625 | 2.34 | 4.842 | 1.669 | 0.969 | 1 | 3.03 | 0.599 |
| S21-1.75″ | 1.75 | 2.46 | 5.433 | 1.669 | 0.969 | 1 | 3.19 | 0.599 |
| S21-1.875″ | 1.875 | 2.582 | 5.433 | 1.669 | 0.969 | 1 | 3.19 | 0.599 |
| S21-2″ | 2 | 2.677 | 5.827 | 1.669 | 0.969 | 1 | 3.43 | 0.599 |
| S21-2.125″ | 2.125 | 2.834 | 5.827 | 1.669 | 0.969 | 1 | 3.82 | 0.709 |
| S21-2.25″ | 2.25 | 2.96 | 6.181 | 1.669 | 0.969 | 1 | 3.94 | 0.709 |
| S21-2.375″ | 2.375 | 3.07 | 6.181 | 1.669 | 0.969 | 1 | 4.02 | 0.709 |
| S21-2.5″ | 2.5 | 3.212 | 6.417 | 1.669 | 0.969 | 1 | 4.17 | 0.709 |
| S21-2.625″ | 2.625 | 3.338 | 6.417 | 1.669 | 0.969 | 1 | 4.29 | 0.709 |
| S21-2.75″ | 2.75 | 3.66 | 7.008 | 1.669 | 0.969 | 1 | 4.65 | 0.709 |
| S21-2.875″ | 2.875 | 3.811 | 7.283 | 2.26 | 1.047 | 1 | 4.96 | 0.709 |
| S21-3″ | 3 | 3.937 | 7.48 | 2.26 | 1.047 | 1.102 | 5.079 | 0.709 |
| S21-3.125″ | 3.125 | 4.063 | 7.677 | 2.26 | 1.047 | 1.102 | 5.197 | 0.709 |
| S21-3.25″ | 3.25 | 41.89 | 7.677 | 2.26 | 1.047 | 1.102 | 5.315 | 0.709 |
| S21-3.375″ | 3.375 | 4.311 | 7.795 | 2.26 | 1.047 | 1.102 | 5.472 | 0.866 |
| S21-3.5″ | 3.5 | 4.437 | 7.795 | 2.26 | 1.047 | 1.102 | 5.591 | 0.866 |
| S21-3.625″ | 3.625 | 4.563 | 8.071 | 2.26 | 1.047 | 1.102 | 5.709 | 0.866 |
| S21-3.75″ | 3.75 | 4.689 | 8.189 | 2.26 | 1.047 | 1.102 | 5.827 | 0.866 |
| S21-4″ | 4 | 4.937 | 8.583 | 2.26 | 1.047 | 1.102 | 6.063 | 0.866 |
Design Drawing of Single Cartridge Seals S21
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