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VP-40
Technical Specifications
| Model | Maximum flow | Pressure adjustment MPa | Speed range r/min | Direction of rotation (viewed from the shaft end） | Quality kg |
VP2-30-20 | 30 | 1.0—2.0 | 800-1800 | Clockwise | 9 |
VP2-30-35 | 1.5—3.5 | ||||
VP2-30-55 | 3.0—5.5 | ||||
VP2-30-70 | 5.0—7.0 | ||||
VP2-40-20 | 40 | 1.0—2.0 | |||
VP2-40-35 | 1.5—3.5 | ||||
VP2-40-55 | 3.0—5.5 | ||||
VP2-40-70 | 5.0—7.0 |
Model Description
installation and use
1. The steering of the pump is viewed from the shaft end to the right (clockwise).
2. The pump shaft shall be installed horizontally. The eccentric error of the pump shaft and the motor shaft is within 0.05mm, and the angle error is within 1 °. The shaft end should avoid increasing radial and axial loads. At the same time, materials with sufficient rigidity shall be selected as the mounting stand.
3. According to the size of the oil port of the pump, the pipe diameter is matched, especially the oil inlet pipe. The oil inlet pipe shall be strictly sealed without air leakage; the system shall be equipped with a cooling device (if there is no cooling device, the volume of the oil tank shall be increased); the oil tank shall be equipped with a partition plate to separate the bubbles and dirt brought by the oil return;
The oil return pipe mouth should be lower than the liquid level, and the minimum depth of oil immersion is 50mm, even at a low allowable liquid level, to avoid the formation of foam; the suction pressure of the pump is -0.03~0.03MPa; When the pump is installed above the liquid level of the oil tank, the height of the recommend suction inlet from the oil liquid level is less than 500mm.
4. The drain pipe must be directly connected to the oil level of the oil tank, and the pipe resistance should be below 0.03MPa.
5. P-Q settings at the factory:
· Flow setting = the maximum flow set by the specified model of the product sample;
· Pressure setting = minimum value of pressure adjustment range.
6. Flow and pressure adjustment:
When adjusting the flow and pressure, loosen the lock nut first, and then rotate the adjusting screw; after adjustment, tighten the lock nut.
· Turn the flow adjustment screw clockwise, the flow decreases; turn counterclockwise, the flow increases.
· Turn the pressure adjustment screw clockwise, the pressure increases; turn counterclockwise, the pressure decreases.
7. Thrust bolt
The thrust bolt has been set when the pump is assembled, please do not adjust it.
8. Hydraulic oil:
Please use hydraulic oil with viscosity of 30 ~ 50cSt(ISO VG32) at 40 ℃.
· Hydraulic oil temperature range is 15~60 ℃. When the initial oil temperature is below 15 ℃, please use low pressure pre-operation to make the oil temperature reach 15 ℃.
9. Keep the oil clean, and the pipeline and oil tank must be thoroughly cleaned; The system should be equipped with a fine filter, which is recommended to be 25μm, and the oil accuracy grade should be within NSA10. At the same time, an oil filter with sufficient capacity (its rated flow rate should be greater than twice the pump flow rate) should be installed at the suction end of the pump. The recommended accuracy is 100 μm(150 mesh), and the oil filter should be greater than 50mm from the bottom of the bottom of the oil tank.
10. In order to ensure that the pump sliding surface is fully lubricated, please inject oil into the pump body before operation.
11. Initial use: Please start the motor repeatedly under no-load conditions to discharge the air in the pump and tubing. After confirming that the oil pump is discharged, in order to ensure that the air contained in the system is discharged, it is best to continue to run for 10 minutes without load. For pipes with difficult exhaust, install an exhaust valve.
Installation and connection dimensions
Single pump
◆ VP2(1-Flat Key Axis Str. Key shaft)
◆ VP2（2-花键轴 Spline shaft）
According to the United States ANSI B92.1 specification accuracy level: 5
| Modulus | D.P.16/32 |
| Pressure angle | 30° |
| Number of teeth | 9 |
| Pin circle diameter | Φ14.2875 |
| Maximum diameter | Φ15.875 0 |
| Minimum diameter | Φ11.811(MAX) |
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Xuancheng taixin hydraulic technology co., ltd
Mr. Hu：13736658222/18857616666
Mr. Mo：13906865260/13605862555
Tel：0576-86941999
Fax：0576-86914400
Add：No. 10 Park Avenue, Xinfa Town Industrial Park, Langxi County, Xuancheng City, Anhui Province
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