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- R series - Bidirectional power pack gear pumps Hydronit
R series - Bidirectional power pack gear pumps Hydronit
Product also in categories: Gear pumps, aluminium body

Hydronit R series bidirectional (reversible) gear pumps for micro and mini power packs (PPM, PPC and EPB). Reversing the motor reverses the flow between the two ports, so the pump is used in double acting power packs without a directional valve. The pump has integrated suction check valves.
- Group 0: displacement 0.26–1.5 cm³/rev, ports 1/4" BSP, fixing 2 × M5
- Group 1: displacement 2.2–2.6 cm³/rev, ports 3/8" BSP, fixing 2 × M8
- Pressure group 0: peak 190 bar, intermittent 170 bar, continuous 150 bar (older E605045 pumps 200 / 180 / 160 bar)
- Pressure group 1: peak 270 bar, intermittent 260 bar, continuous 250 bar
- Max. speed group 0 3,900–7,000 rpm and group 1 4,000 rpm depending on displacement
- Oil temperature −15…+80 °C, inlet pressure 0.7–3.0 bar (abs.)
- Factory code is the Hydronit spare part code. Image for reference only.
| Code | Type | Displacement (cm3/r) | Factory code | Package size (KPL) |
|---|---|---|---|---|
| HN-E60504502 | Group 0 | 0,26 | E60504502 | 1 |
| HN-E60504503 | Group 0 | 0,32 | E60504503 | 1 |
| HN-E60503503 | Group 0 | 0,32 | E60503503 | 1 |
| HN-E60504504 | Group 0 | 0,38 | E60504504 | 1 |
| HN-E60504505 | Group 0 | 0,49 | E60504505 | 1 |
| HN-E60503505 | Group 0 | 0,51 | E60503505 | 1 |
| HN-E60504506 | Group 0 | 0,64 | E60504506 | 1 |
| HN-E60504509 | Group 0 | 0,88 | E60504509 | 1 |
| HN-E60504513 | Group 0 | 1,25 | E60504513 | 1 |
| HN-E60504515 | Group 0 | 1,5 | E60504515 | 1 |
| HN-E60603504 | Group 1 | 2,2 | E60603504 | 1 |
| HN-E60603505 | Group 1 | 2,6 | E60603505 | 1 |