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Greentech International (Zhangqiu) Co., Ltd. is a professional supplier of vacuum pumps, offering high-quality solutions for various industrial applications. The 2BV series water ring vacuum pumps are ideal for handling 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 function as oil ring vacuum pumps, achieving a suction pressure of 6.7 mbar (ABS), or 99% vacuum. This makes them a perfect replacement for traditional reciprocating vacuum pumps.
When operating under near-limit vacuum conditions for extended periods, it’s essential to connect the pump with a cavitation protection pipe to prevent noise and protect the pump from damage. During compression operations, the maximum discharge pressure can reach up to 0.26 MPa (ABS). The higher the discharge pressure, the greater the motor power required. Therefore, providing accurate discharge pressure data is crucial when selecting the appropriate motor.
The 2BV2-Ex and 2BV6 series water ring vacuum pumps and compressors are specifically designed for use in explosive environments or with flammable gases. Their technical specifications are identical to those of the 2BV2 or 2BV5 series products. Stainless steel versions of the 2BV series are ideal for corrosive or clean environments. The internal components—such as the pump casing, cover, port plate, and impeller—are made from various grades of stainless steel, including SUS304 (0Cr18Ni9), SUS316 (0Cr17Ni12Mo2), and SUS316L (00Cr17Ni14Mo2).
The shaft material is either 2Cr13 or 0Cr18Ni12Mo2Ti, and mechanical seals are sourced from John Crane, with options available for FPM or PTFE materials. These pumps are equipped with several key features:
- A compact design that saves space and simplifies installation.
- Standard use of John Crane mechanical seals for reliable performance.
- A built-in cavitation protection port that activates during near-limit vacuum operation to reduce noise and protect the pump.
- An aluminum bronze impeller offers high strength and wear resistance, improving the pump's durability and corrosion resistance.
- A unique discharge port design helps prevent overpressure, ensuring optimal efficiency across the pump's working range.
- Motors are from the Y2 series, with an IP54 or IP55 protection rating (standard IP44) and F-class insulation.
- Bearings are imported from reputable brands like NTN or NSK, ensuring long-lasting performance and reliability.
Whether you're looking for a standard vacuum pump or one suitable for harsh environments, Greentech provides tailored solutions that meet industry standards and customer needs.