8
| 866 Challenger Series
www.natvac.com | 800.253.5500
Application
Designed for extended operation
• Duty cycle will vary depending on several factors, including altitude,
RPM & ambient temperature�
• The 866 Challenger is a severe duty vacuum pump, designed to be
used in liquid waste pumping systems where extended operation is
desired.
• Proven applications are:
- Oil field
- Septic
- Restaurant Grease
- Industrial Waste
Pump Specifications
866 Calculated Flow Data
866 CHALLENGER
Model-Specific
Information
RPM
Pressure (PSI)
Free Flow
Vacuum (in Hg)
20
15
10
5
0
6
12
15
18
21
27
1150
Hp
44
36
30
23
19
18
22
23
25
26
29
CFM
461
1000
Hp
37
30
24
18
10
14
18
20
22
23
26
CFM
410
900
Hp
33
25
22
16
8
12
15
17
18
20
23
CFM
352
Note: Ambient temperature, altitude, and a variety of other factors will
affect the values listed above.