ZPR-D series are 3-way direct operated pressure reducing valves, which are used to reduce the pressure in a certain circuit lower than of the main circuit.
| Size | 6 | 10 |
| Operating pressure(Mpa) | 31.5 | 31.5 |
| Second working pressure(Mpa) | 21 | 21 |
| Back pressure(MPa) | 6 | 6 |
| Flow rate(L/min) | 30 | 60 |
| Fluid temperature(℃) | -20～80 | -20～80 |
| Weight(KGS) | 1.3 | 2.8 |
| Valve body（Material）Surface treatment | casting phosphating surface | |
| Oil cleanliness | NAS1638 class 9 and ISO4406 class 20/18/15 | |
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