Greentech International (Zhangqiu) Co., Ltd. is a leading supplier of vacuum pumps, offering high-quality and reliable solutions for various 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 a 97% vacuum level. When using transformer oil as the operating liquid, these pumps can function as oil ring vacuum pumps, achieving an even lower suction pressure of 6.7 mbar (ABS), or 99% vacuum. This makes them a complete replacement for traditional reciprocating vacuum pumps.
When operating under conditions close to the maximum vacuum for extended periods, it's essential to connect a cavitation protection pipe to prevent noise and protect the pump. During compression operations, the maximum discharge pressure can reach up to 0.26 MPa (ABS). The higher the discharge pressure, the more power the compressor requires, so providing accurate pressure data is crucial when selecting the appropriate motor.
The 2BV2-Ex and 2BV6 series pumps are specifically designed for use in explosive environments or with flammable gases. Their technical specifications are consistent with those of the 2BV2 or 2BV5 series products. Stainless steel versions of the 2BV series are ideal for applications requiring high corrosion resistance or cleanliness.
All components that come into contact with the working fluid—such as the pump 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 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:
- A compact design that simplifies installation and saves space.
- Standard use of John Crane mechanical seals for long-term reliability.
- A cavitation protection port that activates during near-vacuum operation, reducing noise and protecting the pump.
- An aluminum bronze impeller that offers high strength and wear resistance, improving the pump’s durability.
- A unique discharge port design that prevents overpressure and ensures optimal performance within the pump’s working range.
- Motors conforming to the Y2 series, with IP54 or IP55 protection ratings (standard IP44) and insulation class F.
- High-quality bearings from reputable brands such as NTN or NSK, ensuring smooth and efficient operation.
These pumps are widely used in chemical processing, pharmaceuticals, food industries, and other sectors where precision and reliability are critical. With their advanced design and robust construction, the 2BV series offers a versatile and efficient solution for a wide range of vacuum and compression applications.
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