• Production of PVS-3B has been discontinued. Use PZS-3B.
• Pressure adjustment 3 type has been added to PVS-1B-22 and PVS-2B-45. (Design No. 20 is applied only on PVS-2B-45*3.)

Features
Energy-saving Type with Drastically Reduced Loss A NACHI-proprietary semi-circular barrel swash plate that receives pressure on its surface ensures a stable discharge volume at all times. This eliminates excess discharge volume, and enables the effective use of power corresponding to the load cycle.

This "energy-saving type" conserves energy, reduces power loss, and helps to reduce hydraulic costs. 

Silent Type That Demonstrates Its Power Quietly Proprietary low-noise mechanisms are incorporated on the shoe, swash plate, valve plate, and other locations to ensure silent operation. In particular, a semi-circular barrel swash plate stabilizes operation characteristics to ensure silent operation.

PVS-0B Series VARIABLE VOLUME PISTON PUMP
NACHI PVS-0B-8N1
NACHI PVS-0B-8N3

PVS-1B-16 Series VARIABLE VOLUME PISTON PUMP
NACHI PVS-1B-16N1-12
NACHI PVS-1B-16N2-12
NACHI PVS-1B-16N2-Z-12
NACHI PVS-1B-16N3-12
NACHI PVS-1B-16N3Q1-12
NACHI PVS-1B-16P3-12

PVS-1B-22 Series VARIABLE VOLUME PISTON PUMP
NACHI PVS-1B-22N1-12
NACHI PVS-1B-22N2-12
NACHI PVS-1B-22N3-12
NACHI PVS-1B-22N3-Z-12

PVS-2B-35 Series VARIABLE VOLUME PISTON PUMP
NACHI PVS-2B-35N*-11 *-0, 1, 2, 3
NACHI PVS-2B-35P*-11 *-0, 1, 2, 3
NACHI PVS-2B-35N*Q*-11 *-0, 1, 2, 3
NACHI PVS-2B-35W*S*-11 *-0, 1, 2, 3
NACHI PVS-2B-35R*S*-11 *-0, 1, 2, 3

PVS-2B-45 Series VARIABLE VOLUME PISTON PUMP
NACHI PVS-2B-45N*-11 *-0, 1, 2, 3
NACHI PVS-2B-45P*-11 *-0, 1, 2, 3
NACHI PVS-2B-45N*Q*-11 *-0, 1, 2, 3
NACHI PVS-2B-45W*S*-11 *-0, 1, 2, 3
NACHI PVS-2B-45R*S*-11 *-0, 1, 2, 3

PVS-3B-70 Series VARIABLE VOLUME PISTON PUMP
NACHI PVS-3B-70N*-20 *-0, 1, 2, 3
NACHI PVS-3B-70R*S*-20 *-0, 1, 2, 3
NACHI PVS-3B-70N*Q*-20 *-0, 1, 2, 3
NACHI PZS-3B-100N*-10 * 0, 1, 2, 3, 4
NACHI PZS-4B-100N*Q*-10 * 0, 1, 2, 3, 4
NACHI PZS-5B-130N*-10 * 0, 1, 2, 3, 4
NACHI PZS-6B-180N*-10 * 0, 1, 2, 3

PSM Series FOOT MOUNTING OF PVS/PZS PISTON PUMP
NACHI PSM-101000 (PVS-1B, PVS-0B)
NACHI PSM-102000 (PVS-2B)
NACHI PSM-103000 (PVS-3B)

PSF Series FLANGE OF PVS/PZS PISTON PUMP
NACHI PSF-101000 (PVS-1B)
NACHI PSF-102000 (PVS-2B)
NACHI PSF-103000 (PVS-3B)