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Features:
Our Mechanical seal model YJ680 can Replace JOHN CRANE TYPE 680.
The normal material combination include:
Carbon /Sic/VITON, Sic /Sic/VITON，TC /TC/VITON and so on.
we also can make changes as customers'requirement or totally totally design a new type of mechanical seal to meet clients'needs.
Operating Limits:
Pressure: ≤2MPa
Speed: ≤23 m/s
Temperature: -20℃～+220℃
Material：
Rotary Ring:Carbon /SiC/TC
Stationary Ring :SiC/TC
Secondary Ring : VITON/ kalrez
Spring ：AM350/ Alloy 718/Hastelloy/SS316
Other Parts: SS304/SS316
Replaceable Stationary Ring
YJBO
Download：
Technical Parameter:
| Inches d | D3 | L3 | L4 |
| 0.750 | 1.312 | 1.25 | 10.3 |
| 0.875 | 1.437 | 1.25 | 10.3 |
| 0.937 | 1.500 | 1.25 | 11.1 |
| 1.000 | 1.562 | 1.25 | 11.1 |
| 1.125 | 1.687 | 1.25 | 11.1 |
| 1.250 | 1.812 | 1.312 | 11.1 |
| 1.375 | 1.937 | 1.437 | 11.1 |
| 1.500 | 2.062 | 1.437 | 11.1 |
| 1.625 | 2.187 | 1.437 | 12.7 |
| 1.750 | 2.312 | 1.437 | 12.7 |
| 1.875 | 2.437 | 1.5 | 12.7 |
| 2.000 | 2.562 | 1.5 | 12.7 |
| 2.125 | 2.687 | 1.5 | 14.3 |
| 2.250 | 2.812 | 1.562 | 14.3 |
| 2.375 | 2.937 | 1.562 | 14.3 |
| 2.500 | 3.187 | 1.562 | 14.3 |
| 2.625 | 3.312 | 1.625 | 15.9 |
| 2.750 | 3.437 | 1.625 | 15.9 |
| 2.875 | 3.625 | 1.687 | 15.9 |
| 3.000 | 3.750 | 1.687 | 15.9 |
| 3.125 | 3.875 | 1.75 | 19.84 |
| 3.250 | 4.000 | 1.75 | 19.84 |
| 3.375 | 4.125 | 1.75 | 19.84 |
| 3.500 | 4.250 | 1.875 | 19.84 |
| 3.625 | 4.375 | 1.875 | 19.84 |
| 3.750 | 4.500 | 1.875 | 19.84 |
| 3.875 | 4.625 | 1.875 | 19.84 |
| Metric d | D7 | D3 | L3 | L4 | L8 |
| 18 | 33 | 32 | 27.5 | 13.5 | 20.5 |
| 20 | 35 | 33.3 | 27.5 | 13.5 | 20.5 |
| 22 | 37 | 36 | 27.5 | 13.5 | 20.5 |
| 24 | 39 | 38.1 | 30 | 13.3 | 20.3 |
| 25 | 40 | 39 | 30 | 13 | 20 |
| 28 | 43 | 42 | 32.5 | 12.5 | 19.5 |
| 30 | 45 | 44 | 32.5 | 12 | 19 |
| 32 | 48 | 46 | 32.5 | 12 | 19 |
| 33 | 48 | 47 | 32.5 | 12 | 19 |
| 35 | 50 | 49.2 | 32.5 | 12 | 19 |
| 38 | 56 | 52.4 | 34 | 13 | 20 |
| 40 | 58 | 55.6 | 34 | 13 | 20 |
| 43 | 61 | 58.7 | 34 | 13 | 20 |
| 45 | 63 | 58.7 | 34 | 13 | 20 |
| 48 | 66 | 61.9 | 34 | 13 | 20 |
| 50 | 70 | 65.1 | 34.5 | 13.5 | 20.5 |
| 53 | 73 | 68.3 | 34.5 | 13.5 | 20.5 |
| 55 | 75 | 71 | 34.5 | 13.5 | 20.5 |
| 60 | 80 | 74.6 | 39.5 | 13.5 | 20.5 |
| 65 | 85 | 84.1 | 39.5 | 13.5 | 20.5 |
| 70 | 92 | 87.3 | 45 | 14.5 | 21.5 |
| 75 | 97 | 95.3 | 45 | 14.5 | 21.5 |
| 80 | 105 | 98.4 | 44.5 | 15 | 22 |
| 85 | 110 | 104.8 | 44.5 | 15 | 22 |
| 90 | 115 | 108 | 49.5 | 15 | 22 |
| 95 | 120 | 114.3 | 49.5 | 15 | 22 |
| 100 | 125 | 120.7 | 49.5 | 15 | 22 |
Features:
Our Mechanical seal model YJ680 can Replace JOHN CRANE TYPE 680.
The normal material combination include:
Carbon /Sic/VITON, Sic /Sic/VITON，TC /TC/VITON and so on.
we also can make changes as customers'requirement or totally totally design a new type of mechanical seal to meet clients'needs.
Operating Limits:
Pressure: ≤2MPa
Speed: ≤23 m/s
Temperature: -20℃～+220℃
Material：
Rotary Ring:Carbon /SiC/TC
Stationary Ring :SiC/TC
Secondary Ring : VITON/ kalrez
Spring ：AM350/ Alloy 718/Hastelloy/SS316
Other Parts: SS304/SS316
Replaceable Stationary Ring
YJBO
Download：
Technical Parameter:
| Inches d | D3 | L3 | L4 |
| 0.750 | 1.312 | 1.25 | 10.3 |
| 0.875 | 1.437 | 1.25 | 10.3 |
| 0.937 | 1.500 | 1.25 | 11.1 |
| 1.000 | 1.562 | 1.25 | 11.1 |
| 1.125 | 1.687 | 1.25 | 11.1 |
| 1.250 | 1.812 | 1.312 | 11.1 |
| 1.375 | 1.937 | 1.437 | 11.1 |
| 1.500 | 2.062 | 1.437 | 11.1 |
| 1.625 | 2.187 | 1.437 | 12.7 |
| 1.750 | 2.312 | 1.437 | 12.7 |
| 1.875 | 2.437 | 1.5 | 12.7 |
| 2.000 | 2.562 | 1.5 | 12.7 |
| 2.125 | 2.687 | 1.5 | 14.3 |
| 2.250 | 2.812 | 1.562 | 14.3 |
| 2.375 | 2.937 | 1.562 | 14.3 |
| 2.500 | 3.187 | 1.562 | 14.3 |
| 2.625 | 3.312 | 1.625 | 15.9 |
| 2.750 | 3.437 | 1.625 | 15.9 |
| 2.875 | 3.625 | 1.687 | 15.9 |
| 3.000 | 3.750 | 1.687 | 15.9 |
| 3.125 | 3.875 | 1.75 | 19.84 |
| 3.250 | 4.000 | 1.75 | 19.84 |
| 3.375 | 4.125 | 1.75 | 19.84 |
| 3.500 | 4.250 | 1.875 | 19.84 |
| 3.625 | 4.375 | 1.875 | 19.84 |
| 3.750 | 4.500 | 1.875 | 19.84 |
| 3.875 | 4.625 | 1.875 | 19.84 |
| Metric d | D7 | D3 | L3 | L4 | L8 |
| 18 | 33 | 32 | 27.5 | 13.5 | 20.5 |
| 20 | 35 | 33.3 | 27.5 | 13.5 | 20.5 |
| 22 | 37 | 36 | 27.5 | 13.5 | 20.5 |
| 24 | 39 | 38.1 | 30 | 13.3 | 20.3 |
| 25 | 40 | 39 | 30 | 13 | 20 |
| 28 | 43 | 42 | 32.5 | 12.5 | 19.5 |
| 30 | 45 | 44 | 32.5 | 12 | 19 |
| 32 | 48 | 46 | 32.5 | 12 | 19 |
| 33 | 48 | 47 | 32.5 | 12 | 19 |
| 35 | 50 | 49.2 | 32.5 | 12 | 19 |
| 38 | 56 | 52.4 | 34 | 13 | 20 |
| 40 | 58 | 55.6 | 34 | 13 | 20 |
| 43 | 61 | 58.7 | 34 | 13 | 20 |
| 45 | 63 | 58.7 | 34 | 13 | 20 |
| 48 | 66 | 61.9 | 34 | 13 | 20 |
| 50 | 70 | 65.1 | 34.5 | 13.5 | 20.5 |
| 53 | 73 | 68.3 | 34.5 | 13.5 | 20.5 |
| 55 | 75 | 71 | 34.5 | 13.5 | 20.5 |
| 60 | 80 | 74.6 | 39.5 | 13.5 | 20.5 |
| 65 | 85 | 84.1 | 39.5 | 13.5 | 20.5 |
| 70 | 92 | 87.3 | 45 | 14.5 | 21.5 |
| 75 | 97 | 95.3 | 45 | 14.5 | 21.5 |
| 80 | 105 | 98.4 | 44.5 | 15 | 22 |
| 85 | 110 | 104.8 | 44.5 | 15 | 22 |
| 90 | 115 | 108 | 49.5 | 15 | 22 |
| 95 | 120 | 114.3 | 49.5 | 15 | 22 |
| 100 | 125 | 120.7 | 49.5 | 15 | 22 |
