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| 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, both heads in parallel. |
40 PSIG Pressure 25 InHg Vacuum 1.7 CFM at 0 InHg. |
For higher flow capacity. | |
| Double headed pump, series connected. |
75 PSIG Limited. * 28 InHg Vacuum 0.9 CFM at 0 PSIG. |
For higher vacuum or pressure. | |
| Quad headed pump, all heads in parallel. |
40 PSIG Pressure 25 InHg Vacuum 0.9 CFM each head (3.6 total). |
For higher flow capacity. | |
| Quad headed pump, all heads in series. |
60 PSIG Limited. * 29.5 InHg Vacuum 0.9 CFM. |
For higher vacuum capacity. | |
| Quad headed pump, parallel connection of two pairs of heads in series. |
75 PSIG Limited. * 28 InHg Vacuum 1.7 CFM. |
For higher vacuum & flow capacity. |