Union Nut Set for Type 21 and 21a ball valves, Type 23 ball valves, true union diaphragm valves Type 14 and sediment strainers. Each set contains 2 union nuts. Nominal sizes DN15 to DN100; part numbers by Union Nut PVC-U, PVC-C, PP, PVDF.
| Type | Union Nut Set |
| Applicable Valves | Type 21 and 21a ball valves, Type 23 ball valves, true union diaphragm valves Type 14 and sediment strainers |
| Contents per Set | Each set contains 2 union nuts |
| Size | DN 15, 20, 25, 32, 40, 50, 65, 80, 100 |
| Union Nut Material | PVC-U, PVC-C, PP, PVDF |
| Part Numbers (Union Nut PVC-U) | DN15 S21CNU015 / DN20 S21CNU020 / DN25 S21CNU025 / DN32 S21CNU032 / DN40 S21CNU040 / DN50 S21CNU050 / DN65 S21CNU065 / DN80 S21CNU080 / DN100 S21CNU100 |
| Part Numbers (Union Nut PVC-C) | DN15 S21CNC015 / DN20 S21CNC020 / DN25 S21CNC025 / DN32 S21CNC032 / DN40 S21CNC040 / DN50 S21CNC050 / DN65 S21CNC065 / DN80 S21CNC080 / DN100 S21CNC100 |
| Part Numbers (Union Nut PP) | DN15 S21CN4015 / DN20 S21CN4020 / DN25 S21CN4025 / DN32 S21CN4032 / DN40 S21CN4040 / DN50 S21CN4050 / DN65 S21CN4065 / DN80 S21CN4080 / DN100 S21CN4100 |
| Part Numbers (Union Nut PVDF) | DN15 S21CNF015 / DN20 S21CNF020 / DN25 S21CNF025 / DN32 S21CNF032 / DN40 S21CNF040 / DN50 S21CNF050 / DN65 S21CNF065 / DN80 S21CNF080 / DN100 S21CNF100 |
| Notes | DN50 is not compatible with the true union diaphragm valve Type 14 or the sediment strainer. |