The parameters of negative pressure Roots vacuum pumps may vary depending on the model and manufacturer. Here are some common parameters and explanations of negative pressure Roots vacuum pumps:
1、 Basic parameters
1. Flow range: usually expressed in cubic meters per minute (m3/min) or cubic meters per hour (m3/h). For example, the flow range of certain models may be between 0.86-2.32m3/min or 250m3/h.
2. Boosting (vacuum degree): Refers to the negative pressure or vacuum degree that a pump can generate, usually measured in kilopascals (kPa) or pascals (Pa). For example- 13.3~-43.9kpa or maximum vacuum reaching 0.5Pa.
3. Motor power: Refers to the motor power required to drive the pump, measured in kilowatts (kw). The common range may be 0.75~3kw or higher.
2、 Other important parameters
1. RPM: Refers to the rotational speed of the pump, measured in revolutions per minute (rpm). The speed of different models may vary, such as 980rpm, 1050rpm, 1200rpm, etc.
2. Connection port size: including the size of the intake and exhaust ports, usually measured in millimeters (mm). These dimensions determine the compatibility of the connection between the pump and the piping system.
3. Weight: The weight of a pump, usually measured in kilograms (kg). This is a factor that needs to be considered during installation and transportation.
4. Noise level: Refers to the noise generated by a pump during operation, usually measured in decibels (dB). For example, the noise level of certain models may be 63dB (A).
5. Cooling method: Common cooling methods include natural air cooling, which affects the operational efficiency and stability of the pump.
3、 Special parameters (depending on specific models or applications)
1. Allowable pressure difference: Refers to the pressure difference that the pump can withstand, which is crucial for ensuring the operation of the pump.
2. Recommended Pre stage Pump: Some models of negative pressure Roots vacuum pumps may require a pre stage pump to achieve the desired vacuum level or handle specific types of gases.
3. Media compatibility: Although most negative pressure Roots vacuum pumps are used to process air, some models may be suitable for processing other corrosive gases such as coal gas and biogas.
4、 Precautions
1. When choosing a negative pressure Roots vacuum pump, the above parameters should be comprehensively considered based on specific application requirements, working environment, budget, and other factors.
2. Ensure that the parameters of the selected pump meet or exceed the requirements in practical applications to ensure stable operation and performance of the pump.
3. During installation and use, it is necessary to strictly follow the manufacturer's instructions for operation and maintenance to extend the service life of the pump and reduce the failure rate.
In summary, the parameters of a negative pressure Roots vacuum pump involve multiple aspects, including basic parameters, other important parameters, and special parameters. In the selection and use process, these factors should be comprehensively considered to ensure the performance and reliability of the pump.
