O-Ring Full Set for Type 21 ball valves (DN15-100) and Type 21a ball valves (DN15-50). Nominal sizes DN15 to DN100; part numbers by O-Ring EPDM, FKM, FKM-F, FKM-C.
| Type | O-Ring Full Set |
| Applicable Valves | Type 21 ball valves (DN15-100) and Type 21a ball valves (DN15-50) |
| Size | DN 15, 20, 25, 32, 40, 50, 65, 80, 100 |
| O-Ring Material | EPDM, FKM, FKM-F, FKM-C |
| Part Numbers (O-Ring EPDM) | DN15 S21OFE015 / DN20 S21OFE020 / DN25 S21OFE025 / DN32 S21OFE032 / DN40 S21OFE040 / DN50 S21OFE050 / DN65 S21OF1E065 / DN80 S21OF3E080 / DN100 S21OF1E100 |
| Part Numbers (O-Ring FKM) | DN15 S21OFV015 / DN20 S21OFV020 / DN25 S21OFV025 / DN32 S21OFV032 / DN40 S21OFV040 / DN50 S21OFV050 / DN65 S21OF1V065 / DN80 S21OF3V080 / DN100 S21OF1V100 |
| Part Numbers (O-Ring FKM-F) | DN15 S21OFF015 / DN20 S21OFF020 / DN25 S21OFF025 / DN32 S21OFF032 / DN40 S21OFF040 / DN50 S21OFF050 / DN65 S21OF1F065 / DN80 S21OF3F080 / DN100 S21OF1F100 |
| Part Numbers (O-Ring FKM-C) | DN15 S21OFC015 / DN20 S21OFC020 / DN25 S21OFC025 / DN32 S21OFC032 / DN40 S21OFC040 / DN50 S21OFC050 / DN65 S21OF1C065 / DN80 S21OF3C080 / DN100 S21OF1C100 |
| Notes | For DN65-100 the body material must be specified. |