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 designed to efficiently handle gases and steam, with a suction pressure 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 a suitable replacement for traditional reciprocating vacuum pumps. For long-term operation near the maximum vacuum limit, it's essential to install a cavitation protection pipe to prevent noise and protect the pump from damage. These pumps are also capable of handling compressing tasks, with a maximum discharge pressure of 0.26 MPa (ABS). The required motor power increases with higher discharge pressure, so providing accurate pressure data is crucial when selecting the right motor. The 2BV2-Ex and 2BV6 series models are specifically designed for use in explosive environments or with flammable gases. Their technical specifications are similar to those of the 2BV2 or 2BV5 series, ensuring consistent performance and reliability. For applications requiring corrosion resistance and cleanliness, the stainless steel versions of the 2BV series are ideal. The wetted parts of the pump—such as the casing, cover, port plate, and impeller—are available in various stainless steel grades, including SUS304 (0Cr18Ni9), SUS316 (0Cr17Ni12Mo2), and SUS316L (00Cr17Ni14Mo2). The shaft is made of 2Cr13 or 0Cr18Ni12Mo2Ti, while the mechanical seals are sourced from John Crane, with optional materials such as FPM or PTFE. Key features of the 2BV series include: - A compact, close-coupled design that saves space and simplifies installation. - Standard use of John Crane mechanical seals for enhanced durability. - A built-in cavitation protection port that opens during high-vacuum operations to reduce noise and protect the pump. - An aluminum bronze impeller that offers high strength and wear resistance, improving the pump’s ability to handle abrasive media. - A unique discharge port design that prevents overpressure and ensures optimal efficiency across the pump’s working range. - Motors from the Y2 series, with IP54 or IP55 protection class (standard IP44) and insulation class F. - High-quality bearings from trusted brands like NTN or NSK for reliable performance. Whether you need a standard vacuum pump, a model for hazardous environments, or a corrosion-resistant unit, the 2BV series offers a versatile and robust solution tailored to meet your industrial needs.

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