999-3.1.B VK 999-PK VK ZRD 1 9800064952 alternative 9800069245 SR 30.40 DN 50 9800001644 SR 30.40 DN 50 PN 6 - 40 "DN 50 "DN 100 9800000153, ZRK 1 DN50 PN10-40;Zwischenflansch-Rückschlagklappe 9800000156, ZRK 1 DN100 PN10-40;Zwischenflansch-Rückschlagklappe P/N: 9800000101 Type: SR 34.40 ZRK 1 DN200 PN10-40 SR 10.16 DN200 PN6-16 SR 10.16 DN125 PN6-16 SR 70.16 DN40 PN6-16 SR 10.16 DN150 PN6-16 ZRD G DN250 PN10-16