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O Ring Mechanical Seals N71
Replacement for:
- Chesterton mechanical seal type C891
- Chesterton mechanical seal type AES SAI
- Multi-Spring
- Square pin design
- Easy installation
Performance Capabilities of O Ring Mechanical Seals N71
- Temperature: -20℃ to 180℃, depend on o-ring material
- Pressure: Up to 16 bar
- Speed: Up to 15 m/s
- End play/axial float allowance ±1mm
Sizes of O Ring Mechanical Seals N71
16mm to 200mm0.75” to 8”
Materials Combination of O Ring Mechanical Seals N71
- Face: Carbon, SiC, TC
- Seat: Ceramic, SiC, TC
- O-rings: NBR, EPDM, VITON, Aflas, FEP, Kalrez, Chemraz etc.
- Spring: SS304, SS316, Hastelloy C
- Metal parts: SS304, SS316
Specification of O Ring Mechanical Seals N71
| O Ring Mechanical Seals by Size | d | D | L2 |
| N71-16 | 16 | 30.45 | 35 |
| N71-18 | 18 | 32.28 | 35.2 |
| N71-20 | 20 | 34.29 | 35.2 |
| N71-22 | 22 | 36.3 | 35.2 |
| N71-24 | 24 | 38.3 | 35.2 |
| N71-25 | 25 | 39.29 | 35.2 |
| N71-28 | 28 | 42.29 | 35.2 |
| N71-30 | 30 | 44.3 | 35.2 |
| N71-32 | 32 | 46.3 | 44.65 |
| N71-33 | 33 | 47.9 | 44.65 |
| N71-35 | 35 | 49.48 | 44.65 |
| N71-38 | 38 | 54.28 | 44.65 |
| N71-40 | 40 | 56.08 | 44.65 |
| N71-43 | 43 | 59.08 | 44.65 |
| N71-45 | 45 | 61.09 | 44.65 |
| N71-48 | 48 | 64.11 | 44.65 |
| N71-50 | 50 | 66.09 | 44.65 |
| N71-55 | 55 | 71.07 | 44.65 |
| N71-60 | 60 | 77.14 | 44.65 |
| N71-65 | 65 | 83.01 | 44.65 |
| N71-70 | 70 | 86.08 | 44.65 |
| N71-75 | 75 | 98.43 | 51 |
| N71-80 | 80 | 104.76 | 51 |
| N71-85 | 85 | 107.95 | 51 |
| N71-90 | 90 | 114.3 | 51 |
| N71-95 | 95 | 117.48 | 51 |
| N71-100 | 100 | 123.83 | 51 |
| N71-110 | 110 | 133.35 | 51 |
| N71-120 | 120 | 152.4 | 92.1 |
| N71-125 | 125 | 158.75 | 92.1 |
| N71-130 | 130 | 165.1 | 92.1 |
| N71-135 | 135 | 171.45 | 92.1 |
| N71-140 | 140 | 171.45 | 92.1 |
| N71-145 | 145 | 177.8 | 92.1 |
| N71-150 | 150 | 184.15 | 92.1 |
| N71-155 | 155 | 190.5 | 92.1 |
| N71-160 | 160 | 196.85 | 92.1 |
| N71-165 | 165 | 196.85 | 92.1 |
| N71-170 | 170 | 203.2 | 92.1 |
| N71-175 | 175 | 209.55 | 92.1 |
| N71-180 | 180 | 215.9 | 92.1 |
| N71-185 | 185 | 215.9 | 92.1 |
| N71-190 | 190 | 222.25 | 92.1 |
| N71-195 | 195 | 228.6 | 92.1 |
| N71-200 | 200 | 234.95 | 92.1 |
| O Ring Mechanical Seals by Size | d | D | L2 |
| N71-1" | 25.4 | 39.95 | 35.2 |
| N71-1 1/8" | 28.58 | 43.13 | 35.2 |
| N71-1 1/4" | 31.75 | 46.3 | 44.65 |
| N71-1 3/8" | 34.93 | 49.48 | 44.65 |
| N71-1 1/2" | 38.1 | 54.43 | 44.65 |
| N71-1 5/8" | 41.28 | 57.61 | 44.65 |
| N71-1 3/4" | 44.45 | 60.78 | 44.65 |
| N71-1 7/8" | 47.63 | 63.96 | 44.65 |
| N71-2" | 50.8 | 67.13 | 44.65 |
| N71-2 1/8" | 53.98 | 70.31 | 44.65 |
| N71-2 1/4" | 57.15 | 73.48 | 44.65 |
| N71-2 3/8" | 60.33 | 76.66 | 44.65 |
| N71-2 1/2" | 63.5 | 79.83 | 44.65 |
| N71-2 5/8" | 66.68 | 83.01 | 44.65 |
| N71-2 3/4" | 66.85 | 92.08 | 51 |
| N71-2 7/8" | 73.03 | 95.25 | 51 |
| N71-3" | 76.2 | 98.43 | 51 |
| N71-3 1/8" | 79.38 | 101.6 | 51 |
| N71-3 1/4" | 82.55 | 104.78 | 51 |
| N71-3 3/8" | 85.73 | 107.95 | 51 |
| N71-3 1/2" | 88.9 | 111.13 | 51 |
| N71-3 5/8" | 92.08 | 114.3 | 51 |
| N71-3 3/4" | 95.25 | 117.48 | 51 |
| N71-3 7/8" | 98.43 | 120.65 | 51 |
| N71-4" | 101.6 | 123.83 | 51 |
| N71-4 1/8" | 104.78 | 127 | 51 |
| N71-4 1/4" | 107.95 | 130.18 | 51 |
| N71-4 3/8" | 111.13 | 133.35 | 51 |
| N71-4 1/2" | 114.3 | 136.53 | 51 |
| N71-4 3/4" | 120.65 | 152.4 | 92.1 |
| N71-5" | 127 | 158.75 | 92.1 |
| N71-5 1/4" | 133.35 | 165.1 | 92.1 |
| N71-5 1/2" | 139.7 | 171.45 | 92.1 |
| N71-5 3/4" | 146.05 | 177.8 | 92.1 |
| N71-6" | 152.4 | 184.15 | 92.1 |
| N71-6 1/4" | 158.75 | 190.5 | 92.1 |
| N71-6 1/2" | 165.1 | 196.85 | 92.1 |
| N71-6 3/4" | 171.45 | 203.2 | 92.1 |
| N71-7" | 177.8 | 209.55 | 92.1 |
| N71-7 1/4" | 184.15 | 215.9 | 92.1 |
| N71-7 1/2" | 190.5 | 222.25 | 92.1 |
| N71-7 3/4" | 196.85 | 228.6 | 92.1 |
| N71-8" | 203.2 | 234.95 | 92.1 |
Design Drawing of O Ring Mechanical Seals N71
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