John Crane SEAL-MECH-20 Mechanical shaft seal 20mm, single spring type. Carbon vs Silicon Carbide faces with EPDM elastomers. Universal replacement for centrifugal pumps. Used across marine engine-room, cargo transfer, ballast, bilge, cooling and process fluid transfer duty.
| Material | Carbon/SiC/EPDM/SS316 |
| Standard size | 20mm Shaft |
| Pressure rating | 12 bar |
| Temperature range | -20C to +120C |
| Approval | API 682 4th Edition, ISO 21049, ATEX, CE, FDA 21 CFR 177.2600 (elastomer variants) |
| Standards | API 682, ISO 21049, EN 12756 |
| Approvals | CE, ATEX |
| HS code | 8484.20 |
| Material | Carbon/SiC/EPDM/SS316 |
| Pressure rating | 12 bar |
| Temperature range | -20C to +120C |
| Standard size | 20mm Shaft |
| MOQ | 1 |
Part number shown for quick reference. Fits listed model. For other models or if unsure, contact us with pump type and serial number to verify compatibility.