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Ultimate Operating Vacuum:

Pumping Speed / Displacement:

Venturi Jet Type / Media:

Vacuum Pump Stages:

Application:

Mounting:

OEM Controller / Control Panel?

Valve Sequencing Control?

Vacuum Gauge?

Integral Trap(s)?

Gas Ballast?

Operating Temperature:

Allow up to: overrange/margin
Use the overrange/margin to restrict your search to items whose full-scale range is close to your requirements.
(Overrange/margin requires both 'From' and 'To' values to work.)

Help with Venturi Vacuum Generators specifications:

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.
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Venturi Jet Type / Media
   Venturi Jet Type / Media       
   Your choices are...         
   Venturi Air Jet       In a venturi air jet, the vacuum is "drawn" by entrainment of air by a flow of compressed air used as the motive fluid.  This technology is used in a wide range of vacuum applications, from very small sampling uses to large industrial vacuum systems.  They are usually used to create vacuum for air or gas systems, and are often unsuitable for liquid vacuum uses. 
   Steam Ejector       Steam ejectors use steam as the primary motive fluid. These are very reliable systems that are used widely in industrial vacuum systems. 
   Liquid Eductor / Ejector       Liquid eductors use liquids, such as oil or water, as the motive fluid to provide vacuum. These are typically used for creating vacuum in liquid systems. 
   Other       Unlisted or specialized Venturi type vacuum generator. 
   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.
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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.
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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.
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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.
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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.
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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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