Can these pumps handle aggressive or contaminated gases?

Yes. The RVS series is oil-free and built with materials that resist chemical attack, making them ideal for polluted or chemically reactive environments.

How do Robuschi systems reduce water consumption?

Through partial or total recirculation systems (e.g., CRVS, LRVS, KRVS), which reuse service liquid and minimize the need for fresh water.

Are these pumps suitable for food-grade applications?

Yes. Their non-contaminating operation and corrosion-resistant construction make them suitable for food processing, dairy, and beverage industries.

What’s the difference between monoblock and bareshaft models?

Monoblock models are compact and integrated, ideal for space-saving installations. Bareshaft models offer more flexibility for custom configurations and higher capacities.

Liquid Ring Vacuum Pumps and Compressors

Full Product Brochure

Robuschi’s RVS series of liquid ring vacuum pumps and compressors are engineered for industries that demand high reliability, low maintenance, and energy efficiency. These systems are built to handle aggressive gases, high humidity, and wet processes—without compromising performance or longevity.

Get detailed specifications, material options, and system configurations.

Why Choose Robuschi RVS Series?

Built for Harsh Environments

The RVS monoblock and bareshaft series are designed to thrive in extreme conditions. Ceramic-coated housings, stainless steel shafts, and corrosion-resistant materials prevent limescale buildup and wear, even in humid or chemically aggressive environments.

High Performance, Low Maintenance

Vacuum levels as low as 33 mbar(a)
Flow rates up to 4,200 m³/h
Energy-efficient operation with minimal water use
Quiet and vibration-free performance
No metal-to-metal contact, reducing wear and extending service life

Modular and Scalable

From standalone pumps to complete systems with separators, heat exchangers, and recirculation loops, the RVS series supports a wide range of configurations. Systems like CRVS, LRVS, and KRVS offer partial or total fluid recirculation, reducing water consumption and simplifying maintenance.

Product Highlights

RVS Monoblock Series

Compact, durable, and cost-effective. Ideal for applications with high humidity or water carryover.

Ceramic internal coatings prevent calcification
Wide voltage motors (50/60 Hz, IP55)
UL/CSA approved

RVS L2BV7 & L2BV2

Water-efficient pumps using up to 50% less liquid.

Available in stainless steel, bronze, ceramic, or cast iron with ceramic coating
Quiet, cavitation-free operation
Long-lasting roller bearings and reinforced shafts

RVS L2BV5

High-volume monoblock pumps with dual pump/condenser functionality.

Suction volumes up to 600 m³/h
Handles condensable vapors efficiently
Continuous lubrication and energy-saving design

RVS L2BV54

Optimized for high water carryover applications.
Manages up to 6 m³/h of liquid
Eliminates need for pre-separation
Flow up to 340 m³/h at 100 mbar(a)

RVS Lantern and Bareshaft Series

Flexible, oil-free operation with nearly isothermal compression.

Customizable motors
Low vibration and noise
Suitable for vacuum filtration, gas recovery, and more

Applications Across Industries

Food & Beverage: Dairy, bottling, filtering, preservation
Medical: Central vacuum, autoclaves
Packaging: Blister packs, PET bottle filling
Plastics: Degassing, extrusion, EPS foaming
Environmental: Solvent recovery, sanitation, vacuum tankers
Ceramics & Brick: Degassing, drying
Chemical & Pharma: Polluted gas handling, closed-loop systems

System Configurations

L-SVG (Closed Circuit)

Heat exchanger separates cooling and operating liquids
Minimal water use
Modular and durable

L-SVT (Open Circuit)

Mechanically controlled water levels
Easy integration

CRVS & LRVS

Compact systems with belt or direct drive
Partial water recirculation
Reduced vibration and energy waste

KRVS

Total or partial recirculation
Ideal for polluted gas/liquid handling
Up to 70% fluid recovery

Accessories for Customization

Non-return valves
Cavitation protection valves
Gas ejectors (suction pressures down to 10 mbar abs)
Liquid separators
Anti-cavitation VGI valves
Vacuum breaker and check valves
Silencers and manifolds

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FAQs

Their design prevents metal-to-metal contact and uses corrosion-resistant materials like stainless steel and ceramics. This ensures reliable operation even with high water carryover or condensable vapors.