**Greentech International (Zhangqiu) Co., Ltd** is a professional supplier of vacuum pumps, offering high-quality and reliable solutions for industrial applications. The **2BV series water ring vacuum pumps** are ideal for pumping gases and steam, with suction pressures reaching as low as 33 mbar (ABS), equivalent to 97% vacuum. When using transformer oil as the operating liquid, these pumps can achieve an even higher vacuum level of 6.7 mbar (ABS), or 99%, making them suitable for replacing traditional reciprocating vacuum pumps.
For long-term operation near the maximum vacuum level, it's recommended to install a cavitation protection pipe to prevent noise and protect the pump from damage. These pumps can also function as compressors, with a maximum discharge pressure of 0.26 MPa (ABS). The higher the discharge pressure, the more power the motor requires, so it's important to provide accurate pressure data when selecting the appropriate motor.
The **2BV2-Ex** and **2BV6 series** models are specifically designed for use in explosive or flammable environments, ensuring safe and efficient performance. They share similar technical specifications with the standard 2BV2 and 2BV5 series products.
For corrosive or high-purity environments, the **stainless steel versions** of the 2BV series are available. The wet parts of the pump, including the casing, cover, port plate, and impeller, are made from different grades of stainless steel such as **SUS304**, **SUS316**, and **SUS316L**. The shaft is typically made from **2Cr13** or **0Cr18Ni12Mo2Ti**, while mechanical seals are sourced from **John Crane**, with options for **FPM** or **PTFE** materials.
Key features of the 2BV series include:
- **Close-coupled design** for easy installation and space-saving.
- Standard **John Crane mechanical seals** for reliability.
- A **cavitation protection port** to reduce noise and protect the pump during extended high-vacuum operation.
- An **aluminum bronze impeller** that improves wear resistance and performance.
- A **unique discharge port design** to prevent overpressure and maintain efficiency.
- **Y2 series motors** with IP54/IP55 protection and F-class insulation.
- **Imported NTN or NSK bearings** for durability.
Below is a detailed specification table for various models:
| Type | Suction Capacity (m³/min) | Limited Vacuum (mbar/MPa) | Motor Power (kW) | Explosion-proof Grade | Protection Grade | Pump Speed (r.p.m) | Liquid Flowrate (L/min) | Noise (dB(A)) | Weight (kg) |
|--------------|---------------------------|----------------------------|------------------|----------------------|------------------|---------------------|-------------------------|---------------|-------------|
| 2BV2 060 | 0.45 | 33 mbar (-0.098 MPa) | 1.1 | No | IP54 | 2880 | 2 | 62 | 31 |
| 2BV2 061 | 0.86 | | 1.5 | No | IP54 | 2880 | 2 | 65 | 35 |
| 2BV2 070 | 1.33 | | 3 | No | IP54 | 2850 | 2.5 | 66 | 56 |
| 2BV2 071 | 1.83 | | 4 | No | IP54 | 2860 | 4.2 | 72 | 65 |
| 2BV2 060-Ex | 0.45 | | 1.1 | dIIBT4 | IP55 | 2880 | 2 | 62 | 39 |
| 2BV2 061-Ex | 0.86 | | 1.5 | dIIBT4 | IP55 | 2880 | 2 | 65 | 45 |
| 2BV2 070-Ex | 1.33 | | 3 | dIIBT4 | IP55 | 2850 | 2.5 | 66 | 66 |
| 2BV2 071-Ex | 1.83 | | 4 | dIIBT4 | IP55 | 2860 | 4.2 | 72 | 77 |
| 2BV5 110 | 2.75 | | 4 | No | IP54 | 1450 | 6.7 | 63 | 103 |
| 2BV5 111 | 3.83 | | 5.5 | No | IP54 | 1450 | 8.3 | 68 | 117 |
| 2BV5 121 | 4.66 | | 7.5 | No | IP54 | 1450 | 10 | 69 | 149 |
| 2BV5 131 | 6.66 | | 11 | No | IP54 | 1430 | 15 | 73 | 205 |
| 2BV5 161 | 8.33 | | 15 | No | IP54 | 970 | 20 | 74 | 331 |
| 2BV6 110 | 2.75 | | 4 | dIIBT4 | IP55 | 1450 | 6.7 | 63 | 153 |
| 2BV6 111 | 3.83 | | 5.5 | dIIBT4 | IP55 | 1450 | 8.3 | 68 | 208 |
| 2BV6 121 | 4.66 | | 7.5 | dIIBT4 | IP55 | 1450 | 10 | 69 | 240 |
| 2BV6 131 | 6.66 | | 11 | dIIBT4 | IP55 | 1430 | 15 | 73 | 320 |
| 2BV6 161 | 8.33 | | 15 | dIIBT4 | IP55 | 970 | 20 | 74 | 446 |
Whether you need a standard or explosion-proof model, the 2BV series offers a wide range of options to meet your industrial vacuum and compression needs.â— Suitable for fine powder classification, grading product particle size up to D97:5~150 microns, product particle size stepless adjustable, variety replacement is extremely convenient;
â— High grading efficiency (extraction rate)70%~90%;
â— High precision classification, narrow particle size distribution, completely eliminate large particles and screen residue in the product;
◠Low speed, long service life, the same grading particle size, grading rotation speed than other horizontal, vertical classifier reduced by 50%. When producing powder with grass hardness <5, the grading wheel has no wear: when producing powder with Mohs hardness ≥7, the service life of the grading wheel is increased by 5~8 times compared with other horizontal and vertical types
â— Vertical grading turbine device, low speed, wear resistance, low system power configuration:
â— It can be used in series with multistage classifier to produce products of multiple granularity segments at the same time;
â— Can be used in series with ball mill, vibration mill, Raymond mill and other grinding equipment, forming a closed-circuit cycle;
â— System negative pressure production, no dust pollution, excellent environment, high degree of automation, strong stability, easy to operate.
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Shandong Jing Xin Powder Equipment Technology Co., Ltd. , https://www.jxpowder.com