Greentech International (Zhangqiu) Co., Ltd.
Greentech Industry (Jinan) Co., Ltd.
Choosing a vacuum pump is not about chasing the lowest pressure on paper.
The real question most engineers ask is simple:
“Will this pump survive my working conditions?”
For many industrial users, the answer often leads to the 2BV liquid ring vacuum pump.
Before looking at specifications, look at your gas conditions.
If your process produces steam, water vapor, or wet gas, many dry vacuum pumps struggle.
They lose efficiency, need frequent maintenance, or fail early.
The 2BV series uses water as a sealing medium, which makes it naturally suitable for high moisture gas environments.
In chemical reactors, distillation units, and vacuum filtration systems, gas often contains vapor or trace liquid.
A 2BV liquid ring vacuum pump can handle this without internal damage, making it a common industrial vacuum pump for chemical industry use.
With proper material selection and sealing water control, the 2BV series works well with lightly corrosive gases, where oil-based pumps may suffer faster wear.
In paper mills and surface treatment lines, gas streams may contain both moisture and dust.
The liquid ring structure helps protect internal parts, which is why many users choose the 2BV as a vacuum pump for high moisture gas rather than a dry alternative.
In pharmaceutical drying and food evaporation systems, reliability matters more than extreme vacuum levels.
The 2BV series is often used as a process vacuum pump, offering stable performance, smooth operation, and easy maintenance.
Your gas contains high moisture or vapor
Liquid carryover is possible
Long-term stability is more important than ultimate vacuum
Water use is strictly limited
Your process gas is completely dry and clean
If your process environment is tough, wet, or unpredictable, the 2BV liquid ring vacuum pump is often the safer and more reliable choice.

vacuum pump product information
Web: http://www.greentechblower.com (Group Web) ‖ http://www.zqblower.cn (Chinese) ‖ http://www.ringblower.cn/ (Ring blower) ‖ http://www.china-blower.com (Roots Blower)
Copyright © 2025 Greentech International (Zhangqiu) Co., Ltd. | All Rights Reserved 鲁ICP备12007127号 Technical support:Xintuweb
