|
Head Connection Schematic |
Description |
Standard Eccentric
Minimum Pressure** /
Minimum Vacuum ** /
CFM at 0 PSIG ** |
Systems Applications |
 |
Double headed pump,
both heads operating independently. |
40 PSIG Pressure
25 InHg Vacuum
0.9 CFM each head. |
For economical use of 2 heads pumping separately. |
 |
Double headed pump,
intake lines in common,
manifold - parallel. |
40 PSIG Pressure
25 InHg Vacuum
1.7 CFM at 0 InHg. |
For higher capacity at maximum vacuum. |
 |
Double headed pump,
series connected. |
75 PSIG Limited. *
28 InHg Vacuum
0.9 CFM at 0 PSIG. |
For higher vacuum or pressure where flow requirement is low. |
 |
Quad headed pump,
all heads in parallel. |
40 PSIG Pressure
25 InHg Vacuum
0.9 CFM each head (3.6 total). |
For higher capacity of flow. |
 |
Quad headed pump,
all heads in series. |
60 PSIG Limited. *
29.5 InHg Vacuum
0.9 CFM. |
For higher capacity of vacuum. |
 |
Quad headed pump,
parallel connection of two pairs of heads in series. |
75 PSIG Limited. *
28 InHg Vacuum
1.7 CFM. |
For higher capacity of vacuum & flow.
|
* Regulated pressure over 75 PSIG shortens bearing and diaphragm life.
** Information based on 75° F at 1745 rpm at 60Hz.