True Union Seat Set for Ball check valves (true union). Nominal sizes DN15 to DN50; part numbers by Seat EPDM, FKM.
| Type | True Union Seat Set |
| Applicable Valves | Ball check valves (true union) |
| Size | DN 15, 20, 25, 40, 50 |
| Seat Material | EPDM, FKM |
| Part Numbers (Seat EPDM) | DN15 STCSSUE015 / DN20 STCSSUE020 / DN25 STCSSUE025 / DN40 STCSSUE040 / DN50 STCSSUE050 |
| Part Numbers (Seat FKM) | DN15 STCSSUV015 / DN20 STCSSUV020 / DN25 STCSSUV025 / DN40 STCSSUV040 / DN50 STCSSUV050 |