Three-screw hydraulic pumps A1 3B are manufactured for installation on ships of the sea and river fleet in the engine rooms and other rooms of ships, as well as in hydraulic systems.
| Марка | Подача, м³/ч | Давление насоса (дифференц.), кгс/см² | Высота всасывания, м | Частота вращения, об/мин | Мощность двигателя, кВт |
| А1 3В 1/100-1.8/100Б-3 | 1.8 | 100 | 6 | 2900 | 11 |
| А1 3В 2.5/100-3/100Б-23 | 3.8 | 100 | 6 | 2900 | 18.5 |
| А1 3В 4/160-5.8/160Б | 5.8 | 160 | 6 | 2900 | 37 |
| А1 3В 8/63-11/40Б | 11.6 | 40 | 5 | 2900 | 22 |
| А1 3В 16/63-20/63Б | 21 | 63 | 5 | 2900 | 55 |
| А1 3В 16/63-20/63Б-3 | 21 | 63 | 5 | 2900 | 55 |
| А1 3В 16/63-20/63Б-13 | 21 | 63 | 5 | 2900 | 55 |
| А1 3В 8/100-11/100Б-1 | 11.52 | 100 | 5 | 2900 | 55 |
| А1 3В 4/160-4/63Б | 5.8 | 63 | 6 | 2900 | 22 |
| А1 3В 4/160-4/100Б | 5.8 | 100 | 6 | 2900 | 30 |