2XZB type rotary vane vacuum pump with dual stage high-speed direct connection structure rotary vane vacuum pump (hereinafter referred to as the pump). Rotary vane vacuum pumps have independent oil pump lubrication. The rotor eccentrically installed in the pump chamber and the rotor blades in the rotor groove. When the rotor drives rotation, the rotor tightly adheres to the chamber wall, separating the intake and exhaust ports, and periodically expanding the volume of the intake chamber to suck in air, while periodically reducing the volume of the exhaust chamber to compress gas, pushing open the exhaust valve to exhaust, thereby obtaining vacuum. Figure 1 is a schematic diagram of the working principle of a single-stage pump. Double stage is composed of two single stages connected in series.
The 2XZB rotary vane vacuum pump is equipped with an air damper, which has the function of prolonging the use time of pump oil and preventing pump oil from mixing with water.

Scope of Application
1. High vacuum degree 6x10-2Pa;
2. Compact structure, small volume, and light weight;
3. Advantages such as low noise and minimal vibration;
4. Rotary vane vacuum pumps are suitable for use as front-end pumps for diffusion pumps, and are also more suitable for precision instrument matching and laboratory use. For example: mass spectrometry instruments, refrigerator assembly lines, vacuum freeze dryers, etc;
5. It cannot be used for extracting gases with high oxygen content, explosiveness, corrosiveness to metals, chemical reactions to vacuum oil, or gases containing particles or dust. It cannot also be used as a conveying pump or compression pump;

Model meaning

Structure description of 2XZB direct coupled rotary vane vacuum pump

performance parameters