DP43 Medium- and High-Pressure Vane Pump
Key words:
Category:
Details
Technical Specifications
| Subseries code |
Model |
| DP 43 |
YB-D 63–100/31.5–50 |
Model Description
Installation and Use
1. During installation, the coaxiality error between the pump shaft and the drive motor shaft shall be less than 0.10 mm (as indicated by the total reading difference of a dial indicator). The maximum allowable angular error is less than 0.2°. A flexible coupling must be used, and the pump shaft must not bear any radial or axial loads. The support structure must be robust and highly rigid, capable of effectively absorbing vibrations.
2. During installation, it is recommended to position the pump’s suction port upward, so that oil can be easily drawn in when starting up.
3. Match the piping to the oil port dimensions, especially the inlet pipe, and install a safety relief valve in the system. The set pressure of the safety valve should not exceed the pump’s maximum operating pressure. The inlet piping must be tightly sealed to prevent air leakage, and the return oil pipe outlet should be positioned below the liquid level.
4. Before starting the pump, verify that the oil inlet and outlet ports and the rotation direction are correct. When starting a newly installed pump or a pump that has been idle for an extended period, bleed air from the oil outlet. Additionally, whenever possible, start the pump briefly in a no-load condition (preferably by filling the pump with oil first).
5. When the pump is installed higher than the oil level in the tank, the suction height should be ≤500 mm. Ideally, the suction port should be positioned below the oil level in the tank. The positive pressure at the suction inlet should be ≤0.03 MPa.
6. Keep the hydraulic fluid clean, and ensure that all pipelines and the oil tank are thoroughly cleaned. Install a filter with sufficient capacity at a position no less than 50 mm above the bottom of the oil tank, at the pump suction inlet (the filter’s rated flow rate should be more than twice the pump’s flow rate). A filtration accuracy of 100 μm (150 mesh) is recommended. A fine filter with a rating of 25 μm should also be installed in the system. The cleanliness level of the hydraulic fluid should be within NAS12 grade.
7. The operating temperature of the hydraulic oil should be maintained within the range of 15 to 55°C. When starting up in extremely cold temperatures, the hydraulic oil should be warmed up. After several no-load jogging operations, the oil pump should be run continuously under no-load conditions.
8. Pay attention to the viscosity and type of hydraulic oil. When the ambient temperature is low, we recommend using 32# anti-wear hydraulic oil.
9. After the entire pump has been installed, manually rotate the pump shaft; it should turn smoothly and freely.
Installation connection dimensions
| Subseries code |
L |
L1 |
L2 |
L3 |
L4 |
B |
B1 |
B2 |
S |
D1 |
D2 |
d |
d1 |
t |
b |
Z1 |
Z2 |
Z3 |
H1 |
H2 |
H3 |
||
| DP43 |
338 |
153 |
49 |
208 |
16 |
55 |
28 |
6 |
150 |
Φ90 |
-0.036 -0.071 |
Φ175 |
Φ30 |
0 -0.013 |
Φ14 |
33 |
8 |
NPT 2 |
NPT 1 |
NPT 1 |
100 |
100 |
85 |
Get Quote
Welcome to leave a message, there may be a discount
Note: Please leave your contact information and our professionals will contact you as soon as possible!
CONTACT US
HOTLINE:
Domestic sales:
13968563323/13958514945/13666851636/13968535901/
+86-13968532998/13968565668/13968552819
Foreign sales:+86-576-87759616
Domestic sales:+86-576-87759882
FAX:
+86-576-87827561
Add :NO.118 Luxing Middle Road, Anzhou Street, Xianju, Zhejiang, China
Email : xjylhmc@163.com / lindawu@chinayongling.com
SEND A MESSAGE
We will contact you within one working day. Please pay attention to your email.