Greentech International (Zhangqiu) Co., Ltd. is a professional manufacturer and supplier of vacuum pumps, offering high-quality solutions for various industrial applications. Our 2BV series water ring vacuum pumps are designed to handle gases and steam efficiently. With standard suction pressure reaching up to 33 mbar (ABS), which equates to a 97% vacuum level, these pumps are ideal for general use. When operating with transformer oil instead of water, they function as oil ring vacuum pumps, achieving a much higher vacuum level of 6.7 mbar (ABS), or 99% vacuum. This makes them a perfect replacement for traditional reciprocating vacuum pumps.
For optimal performance, especially when working under near-limit vacuum conditions for extended periods, it’s recommended to install a cavitation protection pipe. This helps prevent damage caused by cavitation, ensuring the pump runs smoothly and quietly. When used as compressors, the maximum discharge pressure can reach 0.26 MPa (ABS). The higher the discharge pressure, the more power the motor requires, so it's crucial to provide accurate pressure data when selecting the appropriate motor.
The 2BV2-Ex and 2BV6 series are specifically designed for explosive environments and can safely handle flammable or explosive gases. Their technical specifications are consistent with the 2BV2 and 2BV5 series, making them reliable choices for hazardous settings.
Our stainless steel 2BV series pumps are ideal for applications requiring high corrosion resistance and cleanliness. The wetted parts—such as the pump casing, cover, port plate, and impeller—are available in different grades of stainless steel, including SUS304 (0Cr18Ni9), SUS316 (0Cr17Ni12Mo2), and SUS316L (00Cr17Ni14Mo2). The shaft material is either 2Cr13 or 0Cr18Ni12Mo2Ti, ensuring durability and strength. We also offer John Crane mechanical seals, with optional materials such as FPM or PTFE for enhanced sealing performance.
Key features of our 2BV series include:
- **Compact design** – Easy to install and space-saving.
- **Standard John Crane seals** – Ensuring reliability and long service life.
- **Cavitation protection port** – Automatically opens when near-limit vacuum is reached, reducing noise and protecting the pump.
- **Aluminum bronze impeller** – Offers excellent wear resistance and improves the pump’s ability to handle abrasive media.
- **Unique discharge port design** – Prevents overpressure and ensures efficient operation within the pump’s working range.
- **High-quality motors** – Y2 series motors with IP54/IP55 protection class and F insulation grade.
- **Imported bearings** – From reputable brands like NTN or NSK, ensuring smooth and quiet operation.
Whether you need a standard vacuum pump or a specialized model for harsh environments, Greentech provides reliable, durable, and efficient solutions tailored to your needs. Contact us today to find the best fit for your application.
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