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Greentech International (Zhangqiu) Co., Ltd is a leading supplier of professional vacuum pumps. Our 2BV series water ring vacuum pumps are ideal for pumping gases and steam, with a suction pressure reaching up to 33 mbar (ABS), equivalent to 97% vacuum level. When using transformer oil as the operating fluid, these pumps can achieve an even higher vacuum of 6.7 mbar (ABS), or 99%, making them a perfect replacement for traditional reciprocating vacuum pumps.
These pumps are especially suitable for environments where high vacuum levels are required. For long-term operation near the maximum vacuum, it's recommended to connect a cavitation protection pipe to reduce noise and protect the pump from damage. When used as compressors, they can handle pressures up to 0.26 MPa (ABS). The higher the discharge pressure, the more power the motor requires, so providing accurate pressure data is essential for selecting the right motor.
The 2BV2-Ex and 2BV6 series are designed for use in explosive or flammable environments, featuring the same technical specifications as their non-explosion-proof counterparts. Stainless steel versions of the 2BV series are ideal for corrosive or high-purity applications, with components such as the pump casing, impeller, and port plate available in materials like SUS304, SUS316, and SUS316L. The shaft is made of 2Cr13 or 0Cr18Ni12Mo2Ti, and mechanical seals are sourced from John Crane, with options for FPM or PTFE.
Key features of the 2BV series include:
- Close-coupled design for easy installation and space-saving.
- Standard use of John Crane mechanical seals for reliable performance.
- Cavitation protection ports to prevent damage during high-vacuum operation.
- High-strength aluminum bronze impellers that improve erosion resistance.
- Unique discharge port design to prevent overpressure and ensure efficient performance.
- Motors from the Y2 series with IP54/IP55 protection ratings and insulation class F.
- Bearings from reputable brands like NTN or NSK for durability.
Below is a detailed table of specifications for various models:
| Type | Suction Capacity (m³/min) | Limited Vacuum (mbar/MPa) | Motor Power (kW) | Explosive-proof Grade | Protection Grade | Pump Speed (r.p.m) | Liquid Flow Rate (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 vacuum pump, an explosion-proof model, or a stainless steel version for harsh conditions, our 2BV series offers a reliable and efficient solution. With advanced engineering and high-quality materials, Greentech ensures optimal performance and long-lasting service in a wide range of industrial applications.
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