Size: 50mm/2''
Flow rate : 150-300L/Min
Pump speed:400-640 rpm

The AOCHENG YB Series Rotary Vane Pump is a self-priming rotary vane pump designed for oil transfer applications. It features a built-in bypass valve, modular cast iron construction, and self-lubricating sliding vanes. The pump is suitable for transferring diesel, lubricating oil, and other compatible industrial liquids, offering high flow rates at relatively low rotational speeds.
Available in single-shaft and double-shaft configurations, the YB Series supports different installation and drive requirements across petroleum, chemical, and industrial fluid handling applications.

| Model | Diameter | Flow Rate at 400 RPM | Flow Rate at 450 RPM | Flow Rate at 500 RPM | Flow Rate at 550 RPM | Flow Rate at 600 RPM | Flow Rate at 650 RPM |
|---|---|---|---|---|---|---|---|
| YB-50 | 2″ (50 mm) | 150 L/min | 270 L/min | 210 L/min | 240 L/min | 270 L/min | 300 L/min |
| YB-65 | 2.5″ (65 mm) | 310 L/min | 465 L/min | 390 L/min | 430 L/min | 465 L/min | 500 L/min |
| YB-80 | 3″ (80 mm) | 600 L/min | 920 L/min | 760 L/min | 840 L/min | 920 L/min | 1,000 L/min |
| YB-100 | 4″ (100 mm) | 1,530 L/min | — | 1,900 L/min | — | — | — |

The YB Series is intended for diesel, lubricating oil, and other compatible liquids. Actual suitability depends on the liquid’s viscosity, chemical compatibility, temperature, and operating conditions.
Select a model based on the required flow rate, connection size, operating speed, and system requirements. Larger models generally serve higher-capacity transfer applications, but the final selection should follow the verified performance data.
The bypass valve helps regulate internal flow when operating conditions create increased discharge resistance. It is part of the pump’s pressure-management design and does not replace appropriate system pressure protection.
The difference is the shaft arrangement and the resulting drive or installation options. The appropriate version depends on the motor or other drive equipment and the required mounting arrangement.
Yes. It can be integrated into a suitable oil transfer system with compatible drive equipment, piping, valves, and other required components. The complete system should be designed around the required flow, pressure, liquid properties, and operating conditions.
his pump uses a rotor with sliding vanes to drive the liquid transfer. The material of construction is nodular cast iron with self-lubricating vanes. Due to its superior performance, the pump can handle viscous and volatile liquid and require less horsepower than other equivalent pumps. The pump has its obvious advantage in the transmission of high flow at low revolution.
Features
a. Excellent self-priming and dry run capabilities
b. Widely application in diesel, gasoline, lubricating oil, heavy oil, etc.
c. Vanes could be replaced without moving the whole pump makes easy maintenance.
d. High flowrate speed for choice
|
Model
|
YB50
|
YB65
|
YB80
|
|
Size
|
50mm/2''
|
65mm/2.5''
|
80mm/3''
|
|
Flow Rate
|
150-300L/Min
|
300-500L/Min
|
600-1000L/Min
|
|
Pump Speed
|
400-640RPM
|
400-640RPM
|
400-640RPM
|
|
Vacuum
|
0.5Bar
|
0.5Bar
|
0.5Bar
|
|
Max Pressure
|
5Bar/75psi
|
5Bar/75psi
|
5Bar/75psi
|
|
Motor
|
2.2KW
|
4KW
|
7.5KW
|
|
Noise
|
70db
|
70db
|
70db
|

