For fittings with stopper with internal square end
| Name | Z | ØD [mm] | V [mm] | Catalogue No. |
| Cap FV-F 2" | G2" | 75 | 39 | 510-4002-020 |
| Cap FV-F 2,5" | G2,5" | 90 | 39 | 510-4002-025 |
| Cap FV-F 4" | G4" | 129 | 49 | 510-4002-040 |
Z - inner thread in accordance with ČSN EN ISO 228-1:2003
D, V - for dimensions following the scheme
CAP FV FOR FITTINGS WITH STOPPER WITH EXTERNAL SQUARE END
For fittings with stopper with external square end
| Name | Z | ØD [mm] | V [mm] | Catalogue No. |
| Cap FV2" | G2" | 75 | 59 | 510-4001-020 |
| Cap FV2,5" | G2,5" | 90 | 59 | 510-4001-025 |
| Cap FV 4" | G4" | 129 | 67 | 510-4001-040 |
Z - inner thread in accordance with ČSN EN ISO 228-1:2003
D, V - for dimensions following the scheme