Yuken Single High Pressure Vane Pump
These pumps operate at 31.5 to 40 MPa (4 569 to 5 802 psi). The PV11R series pumps are available in two sizes, ranging from 2 to 22 cm3/rev (.122 to 1.34 cu.in./rev). Some of them have the pressure loading mechanism, while the others are provided with a unique valve structure that decreases and introduces the pressure to the vane base to reduce the sliding friction between the vane and the cam ring. Those with the unique valve structure are used in high-pressure press machines, etc.
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