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Main pagePumpsVacuum pumpsLiquid Ring Pumps, series AVM/L, AVA, AVD/LSingle stage liquid ring vacuum pumps AVA
Single stage liquid ring vacuum pumps
AVA series consist of single stage liquid ring vacuum pumps type, suitable to achieve deep vacuum. All AVA models are characterized by being bare shaft pumps so that the drive is secured by a flexible coupling that makes the pump shaft integral with the motor shaft.
For sizes AVA 606 and AVA 806 the reference operating speed is the 4-pole motor speed while for sizes AVA 1206 and AVA 1806 the reference operating speed is the 6-pole motor speed. For greater versatility, frequency drive operation is possible within the limits set by the manufacturer. Visually they are identified by the presence of two manifolds, the suction manifold and the discharge manifold, which have the duty of distributing or collecting the gas to / from the suction / discharge end casings located on both impeller ends. ATEX version is available, on request.
The shaft seal is made by means of a simple acting mechanical seal according to DIN 24960, one each pump end. Shaft sealing devices other than the standard require a technical assessment that can be carried out on request. The final end vacuum that can be achieved is 33 mbar ass. at standard conditions. This is possible thanks to the presence of the vary-port valve on each port plate which increases performance when at high vacuum.
Three standard executions are available:
CN The pump is made in cast iron with nodular iron impeller, stainless steel AISI 316 port plates and AISI 420 shaft
CS The pump is made in cast iron with stainless steel AISI 316 port plates and impeller but shaft in AISI 420
SS The pump is made with all “wetted” parts in stainless steel AISI 316.
Pumps of the AVA series are the excellent choice for all those applications decisive for:
- wide versatility of operation from atmospheric pressure down to 33 mbar abs.
- high reliability
- possibility to handle almost all gases and vapors as well as associated liquid carry-over
- isothermal compression
- “in between bearings” construction
- one moving part: the impeller
- port plates in stainless steel for all executions
- API 681 upgrade design, on request
- availability of executions in materials different from the standard (super duplex, hastelloy, etc.)
- low maintenance
- oil-free operation
- operation without vibrations
- low noise
The operation of the pump requires the continuous supply of service liquid having the duty of sealing function but also of removing the compression heat. The service liquid and the gas are discharged together from the pump outlet and can be separated into a separator tank to allow the partial or total recirculation of the liquid after cooling it.
The service liquid, normally water, must be supplied within the flowrate recommended by the supplier and must be compatible with the process so that in specific cases it is possible to use other liquids such as solvents, oils, etc.
APPLICATIONS
- Vacuum industrial processing
- Sterilization
- Extrusion
- Degassing
- Evaporation/distillation
- Priming
- Vacuum sewage
- Bottling
- Depoultry
- Fish farming
Flow Range: up to 1950 m3/h
Materials: cast iron, stainless steel
Vacuum: up to 33 mbar abs
This equipment includes
Industry sectors
- Chicken farms
- A-plants
- Agriculture
- Mining
- Chemical
- Gas terminal
- Power generation
- Research and development
- Food industry
- Oil and Gas
- Oil refineries
- Petrochemical industry
- Fish farming
Applications
- Pressurisation
- Low pressure
- Secondary processing
- Drainage
- Distribution
- Cleaning
- Filtration
- Dewatering
- Treatment
- Processing
- High-Volume
Processed substance
- Water
- LPG
- Separated oil processing
- Process condensate
Features
- Sealing
- Chemically resistant
- Horizontal mount
- Electric
- Intrinsically safe
- Rugged
- Low-noise
- Single-stage
- Direct-drive
- Pulse-less
- Self priming
- Explosion-proof
- Abrasion resistant
- High-efficiency
- Flange
Certificates
- ISO 9001
- ATEX
- CE
- EAC
- DeliveryWe guarantee a prompt and reliable delivery of pumping equipment to any part of the country.
- InstallationWe guarantee a high quality installation work, which ensures optimal and safe operation of the pumping equipment.
- WarrantyWe provide an extended warranty period for all pumping equipment, which indicates its high quality and reliability.
Why us
- wide range of applications
- high reliability
- the ability to work with almost any gas and steam,
including those with a high liquid content - isothermal compression
- one moving part: the impeller
- possibility of manufacturing from various non-standard
materials and special alloys - minimal maintenance
- no lubrication is required
- low vibration level
- silent operation
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Accessories
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