Greentech International (Zhangqiu) Co., Ltd is a professional supplier of vacuum pumps, offering high-quality and reliable solutions for various industrial applications. The 2BV series water ring vacuum pumps are designed for efficient pumping of gases and steam, with a suction pressure that can reach as low as 33 mbar (ABS), equivalent to a 97% vacuum level. When using transformer oil as the operating liquid, these pumps function as oil ring vacuum pumps, achieving an even deeper vacuum of 6.7 mbar (ABS), or 99% vacuum efficiency. This makes them a perfect replacement for traditional reciprocating vacuum pumps.
For optimal performance, it's important to note that when operating near the maximum vacuum for extended periods, a cavitation protection pipe should be installed to prevent noise and protect the pump from damage. These pumps are also suitable for use in environments where explosive gases are present, making them ideal for hazardous areas. The 2BV2-Ex and 2BV6 series models are specifically engineered for such conditions, with technical specifications matching those of the 2BV2 and 2BV5 series products.
The 2BV stainless steel pumps are ideal for applications requiring high resistance to corrosion and cleanliness. All internal components, including the pump casing, cover, port plate, and impeller, are made from different grades of stainless steel such as SUS304, SUS316, and SUS316L. The shaft is constructed from materials like 2Cr13 or 0Cr18Ni12Mo2Ti, while mechanical seals are sourced from John Crane, available in FPM or PTFE options for enhanced performance.
Key features of the 2BV series include:
- **Close-coupled design** for easy installation and space-saving.
- **Standard John Crane mechanical seals** for long-lasting performance.
- **Cavitation protection port** to reduce noise and protect the pump during high-vacuum operation.
- **Aluminum bronze impellers** that offer high strength and wear resistance, improving the pump’s durability.
- **Unique discharge port design** to prevent overpressure and maintain optimal efficiency.
- **Y2 series motors** with IP54 or IP55 protection ratings and F-class insulation.
- **Imported bearings** from NTN or NSK for smooth and reliable operation.
Below is a detailed specification table of the 2BV series pumps:
| Type | Suction Capacity (m³/min) | Limited Vacuum (mbar/MPa) | Motor Power (kW) | Explosive-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 | | | 2880 | 2 | 65 | 35 |
| 2BV2 070 | 1.33 | | 3 | | | 2850 | 2.5 | 66 | 56 |
| 2BV2 071 | 1.83 | | 4 | | | 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 | | | 2880 | 2 | 65 | 45 |
| 2BV2 070-Ex | 1.33 | | 3 | | | 2850 | 2.5 | 66 | 66 |
| 2BV2 071-Ex | 1.83 | | 4 | | | 2860 | 4.2 | 72 | 77 |
| 2BV5 110 | 2.75 | | 4 | No | IP54 | 1450 | 6.7 | 63 | 103 |
| 2BV5 111 | 3.83 | | 5.5 | | | 1450 | 8.3 | 68 | 117 |
| 2BV5 121 | 4.66 | | 7.5 | | | 1450 | 10 | 69 | 149 |
| 2BV5 131 | 6.66 | | 11 | | | 1430 | 15 | 73 | 205 |
| 2BV5 161 | 8.33 | | 15 | | | 970 | 20 | 74 | 331 |
| 2BV6 110 | 2.75 | | 4 | dIIBT4 | IP55 | 1450 | 6.7 | 63 | 153 |
| 2BV6 111 | 3.83 | | 5.5 | | | 1450 | 8.3 | 68 | 208 |
| 2BV6 121 | 4.66 | | 7.5 | | | 1450 | 10 | 69 | 240 |
| 2BV6 131 | 6.66 | | 11 | | | 1430 | 15 | 73 | 320 |
| 2BV6 161 | 8.33 | | 15 | | | 970 | 20 | 74 | 446 |
These pumps are widely used in applications such as vacuum filtration, disinfection, and distillation. They are also suitable for use as compressors, with a maximum discharge pressure of up to 0.26 MPa (ABS). When selecting a motor, it is essential to consider the discharge pressure to ensure the correct power rating is chosen.
With their robust construction, advanced technology, and wide range of applications, Greentech's 2BV series vacuum pumps are a trusted choice for industries requiring reliable and efficient vacuum solutions.
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