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Venturi Vacuum Generators Specifications

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Vacuum Specifications




   Ultimate Operating Vacuum:
 
     Vacuum or pressure is often measured in torr, or mm Hg referenced above absolute zero pressure. Sometimes the following reference terms are used:

1 torr and above: Rough Vacuum
0.001 to 1.0 torr: Medium Vacuum
Below 0.001 torr: High Vacuum

There are other terms and standards used, such as medium vacuum and ultra high vacuum; consult supplier for application specifications.
 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Pumping Speed / Displacement:
 
     Pumping speed or displacements relates to the air volume capacity of the vacuum pump. Vacuum pumps are flow-rated according to the volume of air exhausted with no pressure differential across the pump.
 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
Vacuum Pump Stages




   Vacuum Pump Stages      Stages can be sequential stages of the same technology type (mechanical or Venturi), or two or more different type pumps packaged together, such as a rough, medium, and high vacuum pump system of different technologies.
   Your choices are...
 
      
 
   Single Stage
 
     In single stage of evacuation, air is moved directly from chamber into atmosphere.
 
   Two Stage
 
     Air is evacuated in two stages for lower absolute pressure.
 
   Three Stage
 
     Three chambers are used in succession.
 
   Four or More Stages
 
     Four or more evacuation stages are employed.
 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
Application




           
   Your choices are...
 
      
 
   General Purpose / Industrial
 
     General purpose uses covers a wide range of industrial and manufacturing applications.
 
   Analytical / Scientific
 
     Analytical or scientific applications include electron microscopes, analytical spectrometers, or physics experimentation.
 
   Chemical / Corrosive Gas
 
     Designed for use with chemicals and/or corrosive gases and vapors.
 
   Food Processing
 
     Food processing applications include freeze drying, conveying, and sanitary packaging.
 
   Manufacturing Processing
 
     Vacuum pumps designed for use in manufacturing applications such as plastics vacuum forming, degassing, vacuum sintering and casting, etc.
 
   Medical / Laboratory
 
     Specialized for use in highly specialized medical or biomedical laboratory applications.
 
   Packaging
 
     Vacuum packaging applications include shrink-wrapping and packaging of food, candy, electronic and medical devices and components.
 
   Power Generation
 
     Applications such as condenser venting and vapor recovery in power generation systems such as hydroelectric, nuclear, or fossil fuel power generation.
 
   Pharmaceutical / Sanitary
 
     Sanitary applications, such as pharmaceutical or food and beverage processing, require features such as sterilizability, nonabsorbent seals, and other clean components.
 
   Semiconductor Manufacturing
 
     Designed specifically for the demands of semiconductor, chip, or board manufacturing applications.
 
   Other
 
     Other unlisted, specialized, or proprietary application.
 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
Mounting




           
   Your choices are...
 
      
 
   Benchtop
 
     Benchtop mounting is used for products small enough to mount or be placed on a bench or table. These models may include portability.
 
   Cart / Portable
 
     Portable mounts include wheels, casters, or easily movable frames for frequent relocation.
 
   Floor / Skid
 
     The device rests on floor or on a skid; they are typically used for larger vacuum pumps.
 
   Permanent Installation
 
     Permanent installation is used with very large systems or stations that are installed permanently in one place.
 
   Other
 
     Other unlisted, specialized, or proprietary mounting style.
 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
Features




   OEM Controller / Control Panel?
 
     Vacuum pump or vacuum system has an integral OEM controller or control panel consisting of adjustment controls more than a simple regulator knob.
 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Valve Sequencing Control?
 
     Sequence control of valve opening is critical, especially in a high vacuum system. This option denotes pumps with valve control.
 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Vacuum Gauge?
 
     Vacuum gauges have a dial, numeric, or other readout of pressure.
 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Integral Trap(s)?
 
     Traps are used to prevent backstreaming and resultant contamination from roughing pumps in high vacuum or sanitary applications. There are various trap types or technologies designed for the prevention of chamber entry by oil or water vapor, hydrocarbons, etc.
 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Gas Ballast?
 
     Atmospheric air is allowed into the compression chamber to minimize condensate in the oil and prevent corrosion.
 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
Environment




   Operating Temperature:
 
     This is the full required range of ambient operating temperature.
 
   Search Logic:      User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria.
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