687 Metal Bellow Mechanical Seal foar John Crane 680
Beskriuwing:
687 meganyske segel
Foar grutte kompressors en yndustriële pompen
It ferfangen fan de meganyske seal fan John Crane 680
Operasjonele betingsten:
Temperatuer: -75 ℃ oant +200 ℃
Druk: ≤2.0MPa
Faasje: ≤23m/s
Materialen:
Stationêre ring: TC, silisiumkarbid
Rotary Ring: Carbon, Silicon Carbide, TC
Secondary Seal: NBR, EPDM, Viton
Balgen: Stiel
Spring en metalen dielen: Stiel
Oanfraach:
Oalje, lichte koolwaterstof,
aromatische koolwaterstof,
organyske solvents,
wike soeren,ammoniak
| d (inch) | D3 | L1 |
| 0.750 | 1.312 | 1.250 |
| 0.875 | 1.437 | 1.250 |
| 0.937 | 1.500 | 1.250 |
| 1.000 | 1.562 | 1.250 |
| 1.125 | 1.687 | 1.250 |
| 1.250 | 1.812 | 1.312 |
| 1.375 | 1.937 | 1.437 |
| 1.500 | 2.063 | 1.437 |
| 1.625 | 2.187 | 1.437 |
| 1.750 | 2.312 | 1.437 |
| 1.875 | 2.437 | 1.500 |
| 2.000 | 2.562 | 1.500 |
| 2.125 | 2.687 | 1.500 |
| 2.250 | 2.812 | 1.562 |
| 2.375 | 2.937 | 1.562 |
| 2.500 | 3.187 | 1.562 |
| 2.625 | 3.312 | 1.625 |
| 2.750 | 3.437 | 1.625 |
| 2.875 | 3.625 | 1.687 |
| 3.000 | 3.750 | 1.687 |
| 3.125 | 3.875 | 1.750 |
| 3.250 | 4.000 | 1.750 |
| 3.375 | 4.125 | 1.750 |
| 3.500 | 4.250 | 1.875 |
| 3.625 | 4.375 | 1.875 |
| 3.750 | 4.500 | 1.875 |
| 3.880 | 4.625 | 1.875 |
| 4.000 | 4.750 | 1.875 |
| d(mm) | D3 | L1 |
| 18 | 32 | 27.7 |
| 20 | 33.3 | 27.7 |
| 22 | 36 | 27.7 |
| 24 | 38.1 | 30.2 |
| 25 | 39 | 30.2 |
| 28 | 42 | 32.7 |
| 30 | 44 | 32.7 |
| 32 | 46 | 32.7 |
| 33 | 47 | 32.7 |
| 35 | 49.2 | 32.7 |
| 38 | 52.4 | 34.2 |
| 40 | 55.6 | 34.2 |
| 43 | 58.7 | 34.2 |
| 45 | 58.7 | 34.2 |
| 48 | 61.9 | 34.2 |
| 50 | 65.1 | 34.7 |
| 53 | 68.3 | 34.7 |
| 55 | 71 | 34.7 |
| 60 | 74.6 | 39.7 |
| 65 | 84.1 | 39.7 |
| 70 | 87.3 | 45.2 |
| 75 | 95,3 | 45.2 |
| 80 | 98,4 | 44.7 |
| 85 | 104.8 | 44.7 |
| 90 | 108 | 49,7 |
| 95 | 114.3 | 49,7 |
