Liquid Ring Vacuum Pump | Industrial Water Ring Vacuum Pump DREAM 2BV Series-Top Screw Air Compressor Manufacturers in China

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Liquid Ring Vacuum Pump | Industrial Water Ring Vacuum Pump DREAM 2BV Series

Power: 0.81KW-15KW
Ultimate Vacuum: -0.097MPa
Vacuum Rate: 0.45 m³/min -8.33 m³/min

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Product Overview

Dream Air Compressor’s Liquid Ring Vacuum Pumps are engineered for reliable operation in demanding industrial processes. Designed to handle saturated gases and vapors, these pumps provide consistent vacuum performance even with liquid carryover. They are ideal for chemical, pharmaceutical, food processing, paper, and petrochemical industries.

■100% oil-free vacuum

■Handles wet gases & vapors

■Long-lasting mechanical seals

■Available in stainless steel or cast iron

■Custom models & OEM supported

Key Features

Oil-Free Operation: No oil contamination, ideal for clean applications

Corrosion-Resistant: SS304 or SS316L options for aggressive media

Low Noise & Vibration: Smooth and quiet operation even under full load

Liquid & Vapor Handling: Stable vacuum even with condensate or liquid droplets

Easy Maintenance: Simple structure with low maintenance requirements

Reliable Sealing: Mechanical seal or packing options available

Working Principle

Liquid ring vacuum pumps operate by using a rotating impeller inside a cylindrical casing partially filled with sealing liquid (usually water). As the impeller spins, the liquid forms a ring, creating enclosed spaces between the impeller vanes. These spaces change in volume, drawing in gas and compressing it, then discharging it through the outlet.

Company Certifications

What types of sealing liquid can be used in a liquid ring vacuum pump?

Commonly water is used, but depending on the process, liquids such as glycol, alcohol, or process-compatible solvents can be used as the sealing medium.

Can the pump operate continuously?

Yes. Liquid ring vacuum pumps are designed for continuous 24/7 operation with minimal maintenance.

How deep is the vacuum these pumps can achieve?

Our models can reach an ultimate vacuum of 33 mbar abs (approximately 97% vacuum), depending on the configuration and conditions.

Is it suitable for handling condensable vapors or steam?

Yes, it’s especially good for handling saturated vapors, steam, and gas mixtures with moisture content.

What's the difference between single-stage and two-stage liquid ring pumps?

Two-stage pumps offer a deeper ultimate vacuum and better efficiency under certain operating conditions, especially below 100 mbar abs.

Can this pump be used in explosive or hazardous environments?

Yes, we offer explosion-proof motors and ATEX-compliant versions on request.

What maintenance is required for this pump?

Routine checks include verifying seal liquid level and quality, checking for unusual noises or vibration, and periodic seal replacement.

Can I use the pump with seawater or other non-clean liquids?

Yes, with proper material selection (e.g. bronze or stainless steel), it can run with seawater or process liquids.

Do you offer customized models or OEM branding?

Yes. We offer OEM/ODM services, including logo printing, custom colors, and parameter customization.

What kind of inlet gas filters or accessories are available?

We offer inlet filters, separators, silencing systems, and water recirculation units as optional accessories.

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Liquid Ring Vacuum Pump | Industrial Water Ring Vacuum Pump DREAM 2BV Series