Vacuum pumps and systems for demanding processes
Liquid-ring vacuum pumps and vacuum systems from HERMETIC
Liquid-ring vacuum pumps for gases and vapours
The HERMETIC liquid ring vacuum pump operates on the tried-and-tested positive displacement principle. An eccentrically mounted impeller forms a circulating liquid ring with the operating fluid. This creates cells of varying volume between the vanes, which draw in, compress and deliver gases and vapours.
As there are no components in contact within the pumping chamber and no lubrication is required, the pump operates in a particularly robust, quiet and low-vibration manner. It is ideally suited to humid, condensing and demanding process gases, particularly in the chemical and process engineering sectors.
In a hermetic design with a magnetic coupling or a canned motor, it also enables leak-free and safe operation, even with toxic, explosive or emission-critical media.
Vacuum systems (package units) as a ready-to-connect, complete solution
HERMETIC vacuum systems are compact, ready-to-connect system solutions for demanding processes in research, design and production. All essential components are integrated into a single package unit in a space-saving and service-friendly design – from the vacuum pump or compressor, through liquid separators, heat exchangers and condensers, to valves and pipework.
When combined with seal-less vacuum pumps, this creates a hermetically sealed system with an absolutely leak-tight ring liquid circuit. This reliably prevents leaks and safely contains emissions. Corrosive, toxic or condensable gases and vapours can be conveyed, cooled, condensed and, where required, recovered in a controlled manner.
The result is a cost-effective, environmentally friendly and technically sophisticated solution for modern vacuum and process technology.
Advantages
Easy to maintain
Compact design for simple, quick and cost-effective maintenance.
Hermetically sealed
Leak-free operation with a magnetic coupling or canned motor for maximum process reliability.
Reliable in operation
Quieter, low-vibration and low-wear operation thanks to the contact-free design in the conveying chamber.
Minimal gas heating
Gentle compression achieved through the continuous heat transfer of the working fluid.
Liquid-ring vacuum pumps for the conveyance and compression of gases and vapours
Version with mechanical seal
Flow rate [Q]
max. 3000 m³/h
Intake pressure
at least 33 mbar (abs)
Back pressure
max. 2500 mbar (abs)
Material temperature [t]
–20 °C to +100 °C
Operating pressure
PN 10
Version with magnetic coupling
Flow rate [Q]
max. 3000 m³/h
Intake pressure
at least 33 mbar (abs)
Back pressure
max. 2500 mbar (abs)
Material temperature [t]
–20 °C to +100 °C
Operating pressure
PN 10
Version with a split-shaft motor
Flow rate [Q]
max. 3000 m³/h
Intake pressure
at least 33 mbar (abs)
Back pressure
max. 2500 mbar (abs)
Material temperature [t]
–20 °C to +100 °C
Operating pressure
PN 10
Vacuum systems in use
Tailor-made, comprehensive solutions
ALVPH 1800 vacuum system
Type / Model
Liquid-ring vacuum pump, type LVPH 1800, with canned motor, double-flow
- Extraction of nitrogen
- Suction temperature from 40 to 45°C
- Flow rate 1007 m³/h at 30 mbar
- Pressurisation to 1113 to 1120 mbar
Special features: Vacuum system with integrated CNK-type canned motor pump and 2 metering pumps
Vacuum system, type ALVPMB 150
Type / Model
LVPMB 150 liquid ring vacuum pump with magnetic coupling, monobloc design, single-stage
- Extraction of a mixture of: air, nitrogen, epichlorohydrin and water vapour
- Suction temperature of approx. 25 °C
- Flow rate 81 m³/h at 106 mbar
- Pressurisation to 1113 mbar
ALVPM 800 vacuum system
Type / Model
LVPM 800 liquid ring vacuum pump with magnetic coupling, double-flow
- Extraction of a mixture of: air, nitrogen, epichlorohydrin and water vapour
- Inlet temperature of approx. 20°C
- Flow rate 280 m³/h at 26 mbar
- Pressurisation to 1113 mbar
Special features: Vacuum system with an upstream gas jet pump
Get in touch with our team
Whether you need a vacuum pump or a complete system – together we’ll find the right solution for your application. Our experts will be happy to advise you.