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The PVS piston pump adopts a unique semi-cylindrical swash plate design to maintain a stable flow output when the surface is pressurized, effectively eliminating excess flow, and saving energy and reducing hydraulic costs according to the load cycle.
The design adopts a low-noise mechanism, including a slipper, swash plate and a distribution plate, to ensure silent operation. The new vibration and noise control mechanism effectively reduces the vibration level through a unique three-point support system. Nachi PVS hydraulic piston pumps also optimize the inlet and outlet shapes and apply high-performance radial bearings to further reduce noise.
Utilizing advanced processing technology, it ensures efficient operation and reduces power loss, especially when idling. During maintenance, the pressure adjustment and capacity adjustment mechanisms are located on the same side, making operation and adjustment more convenient.
| Model No. | Volumecm3/rev | Discharge volume at no-load r/min | Pressure | Permitted | Rotating speed min-1 | Mass | ||||||
| adjustment range | peak | kg | ||||||||||
| MPa | pressure | |||||||||||
| {kgf/cm2} | MPa | |||||||||||
| 1000 min-1 | 1200ย min-1 | 1500ย min-1 | 1800 min-1 | {kgf/cm2} | Min. | Max. | ||||||
| PVS-0B-8ย *ย 0-30 | 8 | 8 | 9.6 | 12 | 14.4 | 2- | 3.5 | (20.4-35.7) | 25 | 500 | 2000 | 7.7 |
| 1 | 2- | 7 | {20.4-71.4) | (255} | ||||||||
| 2 | 3- | 14 | {30.6-143) | |||||||||
| 3 | 3- | 21 | {30.6-214} | |||||||||
| PVS-1B-16ย * 0-(* }-12 | 16.5 | 16.5 | 19.8 | 24.7 | 29.7 | 2- | 3.5 | (20.4-35.7) | 25 | 500 | 2000 | 10.5 |
| 1 | 2- | 7 | {20.4-71.4) | (255} | ||||||||
| 2 | 3- | 14 | {30.6-143) | |||||||||
| 3 | 3- | 21 | {30.6-214} | |||||||||
| PVS-1B-22ย * 0-{ย *ย }-12 | 22 | 22 | 26.4 | 33 | 39.6 | 2- | 3.5 | (20.4-35.7) | 25 | 500 | 2000 | 10.5 |
| 1 | 2- | 7 | {20.4-71.4) | (255} | ||||||||
| 2 | 3- | 14 | {30.6-143) | |||||||||
| 3 | 3- | 21 | {30.6-214} | |||||||||
| PVS-2B-35ย * 0-{ย *ย }-12 | 35 | 35 | 42 | 52.5 | 63 | 2- | 3.5 | (20.4-35.7) | 25 | 500 | 2000 | 21 |
| 1 | 2- | 7 | {20.4-71.4) | (255} | ||||||||
| 2 | 3- | 14 | {30.6-143) | |||||||||
| 3 | 3- | 21 | {30.6-214} | |||||||||
| PVS-2B45 * 0-{ย *ย }-12 | 45 | 45 | 54 | 67.5 | 81 | 2- | 3.5 | (20.4-35.7) | 25 | 500 | 2000 | 21 |
| 1 | 2- | 7 | {20.4-71.4) | (255} | ||||||||
| 2 | 3- | 14 | {30.6-143) | |||||||||
| 3-(ย *ย }-20 | 3- | 21 | {30.6-214} | |||||||||
PVS Pump Installation and Piping Precautions:
1.Use a flexible connection between the drive shaft and pump shaft to avoid excessive radial and axial pressure.
2.Ensure alignment between the transmission shaft and pump shaft is within 0.05 mm and 1ยฐ.
3.The coupling length to the pump shaft should be at least two-thirds of its total length.
4.Ensure the connecting flange between the oil pump and motor is strong enough.
5.The oil pump should have a self-priming pressure of -0.03 MPa or higher, with a suction port flow rate โค 2 m/sec.
6.Directly connect the oil drain line back to the fuel tank, ensuring oil discharge back pressure is below 0.1 MPa.
Hydraulic Oil Management:
1.Use high-quality hydraulic oil with viscosity from 20 to 200 mm/s (ISO VG32-68).
2.Operate within an oil temperature range of 5-60ยฐC; start at low pressure and speed below 5ยฐC.
3.Use a 100 ฮผm (150 mesh) filtration precision for the oil suction filter, and install a return oil filter with less than 20 ฮผm filtration accuracy (above 10 ฮผm for pressures โฅ 14 MPa).
4.Maintain hydraulic oil contamination within NAS10 standards.
5.Operate in ambient temperatures of 0-60ยฐC.
POOCCA Hydraulic (Shenzhen) Co., Ltd. was established in 1997. We are a comprehensive hydraulic service company specializing in the research and development, manufacturing, maintenance and sales of hydraulic products, pumps, motors, valves and related parts.
For two decades, POOCCAHydraulics has continued to grow and innovate in the field of hydraulics. We have won the trust of domestic and foreign manufacturers and established strong corporate partnerships. Our annual export volume is up to US$16 million and exported to more than 100 countries. We have established long-term and stable cooperative relationships with dealers in more than 75 countries including the United States, Indonesia, Mexico, Thailand, Russia, and Brazil.
Cooperated brands include Rexroth, Parker, Shimadzu, Vickers, Danfoss, Marzocchi, Yuken, Casappa and other brand hydraulic products.
At POOCCA, our strength is our dedicated team of over 300 professionals. Within this highly skilled workforce, we have a dynamic team of 70 sales professionals who possess vast experience and in-depth understanding of our industry.
The PVS piston pump adopts a unique semi-cylindrical swash plate design to maintain a stable flow output when the surface is pressurized, effectively eliminating excess flow, and saving energy and reducing hydraulic costs according to the load cycle.
The design adopts a low-noise mechanism, including a slipper, swash plate and a distribution plate, to ensure silent operation. The new vibration and noise control mechanism effectively reduces the vibration level through a unique three-point support system. Nachi PVS hydraulic piston pumps also optimize the inlet and outlet shapes and apply high-performance radial bearings to further reduce noise.
Utilizing advanced processing technology, it ensures efficient operation and reduces power loss, especially when idling. During maintenance, the pressure adjustment and capacity adjustment mechanisms are located on the same side, making operation and adjustment more convenient.
| Model No. | Volumecm3/rev | Discharge volume at no-load r/min | Pressure | Permitted | Rotating speed min-1 | Mass | ||||||
| adjustment range | peak | kg | ||||||||||
| MPa | pressure | |||||||||||
| {kgf/cm2} | MPa | |||||||||||
| 1000 min-1 | 1200ย min-1 | 1500ย min-1 | 1800 min-1 | {kgf/cm2} | Min. | Max. | ||||||
| PVS-0B-8ย *ย 0-30 | 8 | 8 | 9.6 | 12 | 14.4 | 2- | 3.5 | (20.4-35.7) | 25 | 500 | 2000 | 7.7 |
| 1 | 2- | 7 | {20.4-71.4) | (255} | ||||||||
| 2 | 3- | 14 | {30.6-143) | |||||||||
| 3 | 3- | 21 | {30.6-214} | |||||||||
| PVS-1B-16ย * 0-(* }-12 | 16.5 | 16.5 | 19.8 | 24.7 | 29.7 | 2- | 3.5 | (20.4-35.7) | 25 | 500 | 2000 | 10.5 |
| 1 | 2- | 7 | {20.4-71.4) | (255} | ||||||||
| 2 | 3- | 14 | {30.6-143) | |||||||||
| 3 | 3- | 21 | {30.6-214} | |||||||||
| PVS-1B-22ย * 0-{ย *ย }-12 | 22 | 22 | 26.4 | 33 | 39.6 | 2- | 3.5 | (20.4-35.7) | 25 | 500 | 2000 | 10.5 |
| 1 | 2- | 7 | {20.4-71.4) | (255} | ||||||||
| 2 | 3- | 14 | {30.6-143) | |||||||||
| 3 | 3- | 21 | {30.6-214} | |||||||||
| PVS-2B-35ย * 0-{ย *ย }-12 | 35 | 35 | 42 | 52.5 | 63 | 2- | 3.5 | (20.4-35.7) | 25 | 500 | 2000 | 21 |
| 1 | 2- | 7 | {20.4-71.4) | (255} | ||||||||
| 2 | 3- | 14 | {30.6-143) | |||||||||
| 3 | 3- | 21 | {30.6-214} | |||||||||
| PVS-2B45 * 0-{ย *ย }-12 | 45 | 45 | 54 | 67.5 | 81 | 2- | 3.5 | (20.4-35.7) | 25 | 500 | 2000 | 21 |
| 1 | 2- | 7 | {20.4-71.4) | (255} | ||||||||
| 2 | 3- | 14 | {30.6-143) | |||||||||
| 3-(ย *ย }-20 | 3- | 21 | {30.6-214} | |||||||||
PVS Pump Installation and Piping Precautions:
1.Use a flexible connection between the drive shaft and pump shaft to avoid excessive radial and axial pressure.
2.Ensure alignment between the transmission shaft and pump shaft is within 0.05 mm and 1ยฐ.
3.The coupling length to the pump shaft should be at least two-thirds of its total length.
4.Ensure the connecting flange between the oil pump and motor is strong enough.
5.The oil pump should have a self-priming pressure of -0.03 MPa or higher, with a suction port flow rate โค 2 m/sec.
6.Directly connect the oil drain line back to the fuel tank, ensuring oil discharge back pressure is below 0.1 MPa.
Hydraulic Oil Management:
1.Use high-quality hydraulic oil with viscosity from 20 to 200 mm/s (ISO VG32-68).
2.Operate within an oil temperature range of 5-60ยฐC; start at low pressure and speed below 5ยฐC.
3.Use a 100 ฮผm (150 mesh) filtration precision for the oil suction filter, and install a return oil filter with less than 20 ฮผm filtration accuracy (above 10 ฮผm for pressures โฅ 14 MPa).
4.Maintain hydraulic oil contamination within NAS10 standards.
5.Operate in ambient temperatures of 0-60ยฐC.
POOCCA Hydraulic (Shenzhen) Co., Ltd. was established in 1997. We are a comprehensive hydraulic service company specializing in the research and development, manufacturing, maintenance and sales of hydraulic products, pumps, motors, valves and related parts.
For two decades, POOCCAHydraulics has continued to grow and innovate in the field of hydraulics. We have won the trust of domestic and foreign manufacturers and established strong corporate partnerships. Our annual export volume is up to US$16 million and exported to more than 100 countries. We have established long-term and stable cooperative relationships with dealers in more than 75 countries including the United States, Indonesia, Mexico, Thailand, Russia, and Brazil.
Cooperated brands include Rexroth, Parker, Shimadzu, Vickers, Danfoss, Marzocchi, Yuken, Casappa and other brand hydraulic products.
At POOCCA, our strength is our dedicated team of over 300 professionals. Within this highly skilled workforce, we have a dynamic team of 70 sales professionals who possess vast experience and in-depth understanding of our industry.
POOCCA Hydraulics is a powerful hydraulic enterprise integrating R&D, manufacturing, sales and maintenance. Its products are exported to more than 120 countries. Its quality, price and service are deeply recognized and trusted by customers.
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