Pumps
Compare pump families
Choose a pump, a pump-and-motor assembly, a hydraulic power unit or service parts. Pressure, flow, displacement and speed depend on the exact model; confirm these in its manufacturer catalog.
| Family and series | Component format | Family distinction | Check before selecting |
|---|---|---|---|
| Piston Pumps PVS Series; PZS Series; PZH Series; PZ Series |
Pump; piston mechanism | Existing PVS/PZS variable-volume, PZ load-sensitive and PZH high-pressure variable-displacement families. Control behavior depends on exact model. | Required displacement/flow at speed, pressure/control type, mount/shaft, ports and design number. |
| Vane Pumps VDC Series; VDR Series; VDS Series |
Pump; vane mechanism | Existing VDS/VDR/VDC variable-volume families; VDS is small/compact and VDC is a high-pressure vane series. | Required flow/pressure, single vs double configuration where listed, mounting and design. |
| Gear Pumps NASGP Series; IPH Series |
Pump; gear mechanism | IPH internal gear and NASGP external gear are separate constructions. IPH single and double variants exist. | Exact series, displacement/flow, rated pressure/speed, shaft/rotation, mount/ports. |
| Uni-Pumps UVN Series; UPV Series; USV Series; UVC Series; UVD Series |
Directly coupled pump and motor | Integrated pump/motor assembly; UPV piston and USV/UVD/UVC/UVN vane families remain distinct. | Pump capacity/control/pressure plus motor output, voltage/frequency/terminals and mounting verified for exact unit. |
| Pump Units NSP Series |
Hydraulic power unit | Existing NSP unit combines variable-vane Uni-Pump with reservoir; choose as an assembled hydraulic power-source unit. | Reservoir size, motor electrical supply/output, flow/pressure duty, circuit/options and design. |
| Seal Kits & Spare Parts ZR Pump Compensators; Vane Pump Service Parts; Uni-Pump Service Parts; IPH Series Seal Kits; PVS Series Service Parts; PZS Series Seal Kits |
Model-specific service/replacement parts | Repair components including seals, rotating/thrust groups and compensators, selected to the exact installed pump and service need. | Pump series, size, design number, exact kit/part number, material and actual included parts. |
Choose a product family
Nachi offers a variety of Piston Pumps, Power units, and more. Please review the following links for each product catalog download:
Nachi Hydraulic Pump Catalog Download
