Panasonic PT-DZ12000U Operating Instructions Manual page 137

Summary of Vacuum Pump Selection Factors
These basic questions should be answered before deciding
which vacuum pump is best suited for a particular application:
• What degree of vacuum is required?
• What flow capacity (cfm) is required?
• What horsepower and speed requirements are needed to
meet vacuum level and capacity values?
• What power is available?
• Will duty cycle be continuous or intermittent?
• What is the atmospheric pressure at the work site?
• What is the ambient temperature?
• Are there any space limitations?
Vacuum Ratings and Typical Pump Capacities
Max. Vacuum
Rating ("Hg)
27.5 to 28.5
25.5 to 29
24 to 29
10 to 28
14 to 22
14 to 22
5 to 7
1 to 2
CFM
Range
1 to 1,000
0.1 to 2
0.1 to 8
0.5 to 50
5 to 2,000
5 to 200
5 to 200
1 to 10,000 Single-stage Centrifugal
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Piston (multistage)
Rocking piston
Diaphragm (single & multistage)
Rotary vane
Multi-stage Centrifugal
Multi-stage Regenerative
Single-stage Regenerative