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03:06 AM
Included: the pump end only (with the internal stainless steel wafer-style check valve on Check Valve: Built-In builds); no motor.
Motor required, ordered separately. A Franklin 4 in motor of the same horsepower: 2-wire, 3-wire single-phase or three-phase, plus the motor control it needs (control box, starter or drive).
Drop cable and splice kit: sized to your setting depth and ordered separately.
The Tri-Seal High Capacity 4 in pump comes in four performance ranges: 35, 45, 60 and 90 GPM, with a 2 in NPT discharge, with and without an internal stainless steel wafer-style check valve. Franklin designs it for optimal performance on its corrosion-resistant 4 in submersible motors. It replaces Franklin’s discontinued original FPS high-capacity models.
Covered by Franklin Electric’s Limited Warranty for 1 year from the date of original purchase.
Source: Franklin Electric 4 in and 6 in Submersible Pump Owner’s Manual (106467101).
| Nominal flow | 35-90 GPM |
| Horsepower | 1 to 10 HP |
| Frequency | 60 Hz |
| Construction | Stainless Steel |
| Approvals | ANSI/NSF-61 |
Find your horsepower in the row, then read across. Total head is the lift from the pumping water level, plus the pressure you want at the tank (2.31 ft for every PSI), plus friction in the drop pipe. The output tables give the flow you get at a 30/50 PSI pressure switch for your depth to water.
35 GPM class — total head in feet at three flows
| HP | 0 GPM (Shut-off) | 10 GPM | 26 GPM | 39 GPM | 52 GPM (Max) |
|---|---|---|---|---|---|
| 1 HP | 161 ft | 163 ft | 147 ft | 107 ft | 32 ft |
| 1-1/2 HP | 230 ft | 229 ft | 207 ft | 152 ft | 46 ft |
| 2 HP | 300 ft | 291 ft | 260 ft | 186 ft | 57 ft |
| 3 HP | 400 ft | 395 ft | 356 ft | 258 ft | 73 ft |
| 5 HP | 650 ft | 648 ft | 592 ft | 425 ft | 108 ft |
| 7-1/2 HP | 950 ft | 944 ft | 847 ft | 607 ft | 169 ft |
| 10 HP | 1250 ft | 1236 ft | 1094 ft | 765 ft | 208 ft |
Output in GPM at 30 PSI (switch cut-in), by depth to water, 1 HP to 3 HP
| HP | 20 ft | 40 ft | 60 ft | 80 ft | 100 ft | 120 ft | 140 ft |
|---|---|---|---|---|---|---|---|
| 1 HP | 42 | 38 | 32 | 23 | — | — | — |
| 1-1/2 HP | — | 45 | 42 | 39 | 35 | 31 | 24 |
| 2 HP | — | — | 45 | 43 | 41 | 38 | 35 |
| 3 HP | — | — | — | — | — | 44 | 43 |
Output in GPM at 50 PSI (switch cut-out), by depth to water, 1 HP to 3 HP
| HP | 20 ft | 40 ft | 60 ft | 80 ft | 100 ft | 120 ft | 140 ft |
|---|---|---|---|---|---|---|---|
| 1 HP | 30 | — | — | — | — | — | — |
| 1-1/2 HP | 41 | 38 | 34 | 29 | 21 | — | — |
| 2 HP | 45 | 42 | 40 | 37 | 34 | 31 | 27 |
| 3 HP | — | — | 45 | 44 | 42 | 41 | 39 |
Output in GPM at 30 PSI (switch cut-in), by depth to water, 5 HP to 10 HP
| HP | 400 ft | 440 ft | 480 ft | 500 ft | 550 ft | 600 ft | 650 ft |
|---|---|---|---|---|---|---|---|
| 5 HP | 36 | 33 | 30 | 28 | 21 | — | — |
| 7-1/2 HP | 44 | 43 | 41 | 40 | 38 | 36 | 34 |
| 10 HP | — | — | 45 | 44 | 43 | 42 | 40 |
Output in GPM at 50 PSI (switch cut-out), by depth to water, 5 HP to 10 HP
| HP | 400 ft | 440 ft | 480 ft | 500 ft | 550 ft | 600 ft | 650 ft |
|---|---|---|---|---|---|---|---|
| 5 HP | 33 | 29 | 25 | 22 | — | — | — |
| 7-1/2 HP | 42 | 41 | 39 | 39 | 37 | 34 | 31 |
| 10 HP | 46 | 45 | 44 | 43 | 42 | 40 | 39 |
45 GPM class — total head in feet at three flows
| HP | 0 GPM (Shut-off) | 13 GPM | 32 GPM | 47 GPM | 63 GPM (Max) |
|---|---|---|---|---|---|
| 1-1/2 HP | 156 ft | 151 ft | 137 ft | 111 ft | 41 ft |
| 2 HP | 216 ft | 208 ft | 184 ft | 148 ft | 51 ft |
| 3 HP | 312 ft | 301 ft | 270 ft | 215 ft | 76 ft |
| 5 HP | 500 ft | 477 ft | 429 ft | 338 ft | 111 ft |
| 7-1/2 HP | 707 ft | 681 ft | 611 ft | 476 ft | 175 ft |
| 10 HP | 950 ft | 912 ft | 814 ft | 620 ft | 211 ft |
Output in GPM at 30 PSI (switch cut-in), by depth to water, 1-1/2 HP to 3 HP
| HP | 0 ft | 20 ft | 40 ft | 60 ft | 80 ft | 100 ft | 120 ft |
|---|---|---|---|---|---|---|---|
| 1-1/2 HP | — | 53 | 47 | 38 | — | — | — |
| 2 HP | — | — | 54 | 51 | 46 | 39 | 29 |
| 3 HP | — | — | — | — | — | 53 | 50 |
Output in GPM at 50 PSI (switch cut-out), by depth to water, 1-1/2 HP to 3 HP
| HP | 0 ft | 20 ft | 40 ft | 60 ft | 80 ft | 100 ft | 120 ft |
|---|---|---|---|---|---|---|---|
| 1-1/2 HP | 44 | 33 | — | — | — | — | — |
| 2 HP | 53 | 49 | 44 | 37 | — | — | — |
| 3 HP | — | — | 55 | 52 | 50 | 46 | 42 |
Output in GPM at 30 PSI (switch cut-in), by depth to water, 5 HP to 10 HP
| HP | 280 ft | 320 ft | 360 ft | 400 ft | 440 ft | 480 ft | 500 ft |
|---|---|---|---|---|---|---|---|
| 5 HP | 45 | 40 | 32 | — | — | — | — |
| 7-1/2 HP | 55 | 53 | 50 | 47 | 44 | 40 | 38 |
| 10 HP | — | — | 56 | 54 | 52 | 50 | 49 |
Output in GPM at 50 PSI (switch cut-out), by depth to water, 5 HP to 10 HP
| HP | 280 ft | 320 ft | 360 ft | 400 ft | 440 ft | 480 ft | 500 ft |
|---|---|---|---|---|---|---|---|
| 5 HP | 39 | 30 | — | — | — | — | — |
| 7-1/2 HP | 52 | 50 | 47 | 43 | 39 | 34 | 31 |
| 10 HP | — | 55 | 54 | 52 | 50 | 48 | 47 |
60 GPM class — total head in feet at three flows
| HP | 0 GPM (Shut-off) | 18 GPM | 45 GPM | 68 GPM | 90 GPM (Max) |
|---|---|---|---|---|---|
| 2 HP | 206 ft | 180 ft | 138 ft | 90 ft | 23 ft |
| 3 HP | 300 ft | 259 ft | 198 ft | 131 ft | 40 ft |
| 5 HP | 485 ft | 416 ft | 317 ft | 209 ft | 57 ft |
| 7-1/2 HP | 700 ft | 593 ft | 451 ft | 295 ft | 75 ft |
| 10 HP | 905 ft | 775 ft | 586 ft | 381 ft | 93 ft |
Output in GPM at 30 PSI (switch cut-in), by depth to water
| HP | 20 ft | 60 ft | 100 ft | 140 ft | 180 ft | 240 ft | 320 ft |
|---|---|---|---|---|---|---|---|
| 2 HP | 69 | 51 | — | — | — | — | — |
| 3 HP | 79 | 69 | 56 | 40 | — | — | — |
| 5 HP | — | 81 | 75 | 68 | 60 | 47 | — |
| 7-1/2 HP | — | — | — | 78 | 74 | 66 | 55 |
| 10 HP | — | — | — | — | 79 | 74 | 67 |
Output in GPM at 50 PSI (switch cut-out), by depth to water
| HP | 20 ft | 60 ft | 100 ft | 140 ft | 180 ft | 240 ft | 320 ft |
|---|---|---|---|---|---|---|---|
| 2 HP | 47 | — | — | — | — | — | — |
| 3 HP | 67 | 54 | 38 | — | — | — | — |
| 5 HP | 80 | 74 | 67 | 59 | 50 | — | — |
| 7-1/2 HP | — | 81 | 77 | 73 | 68 | 60 | 48 |
| 10 HP | — | — | — | 79 | 76 | 70 | 63 |
90 GPM class — total head in feet at three flows (curves end at 131 GPM)
| HP | 0 GPM (Shut-off) | 25 GPM | 63 GPM | 95 GPM | 126 GPM |
|---|---|---|---|---|---|
| 2 HP | 170 ft | 142 ft | 96 ft | 70 ft | 19 ft |
| 3 HP | 220 ft | 182 ft | 124 ft | 92 ft | 28 ft |
| 5 HP | 365 ft | 314 ft | 216 ft | 153 ft | 48 ft |
| 7-1/2 HP | 535 ft | 468 ft | 327 ft | 230 ft | 83 ft |
| 10 HP | 690 ft | 610 ft | 434 ft | 306 ft | 116 ft |
Output in GPM at 30 PSI (switch cut-in), by depth to water
| HP | 20 ft | 40 ft | 60 ft | 80 ft | 100 ft | 120 ft | 140 ft |
|---|---|---|---|---|---|---|---|
| 2 HP | 80 | 60 | — | — | — | — | — |
| 3 HP | 97 | 84 | 68 | — | — | — | — |
| 5 HP | — | 109 | 103 | 96 | 88 | 80 | 72 |
| 7-1/2 HP | — | — | — | — | 108 | 104 | 99 |
| 10 HP | — | — | — | — | 108 | 104 | 99 |
Output in GPM at 50 PSI (switch cut-out), by depth to water
| HP | 20 ft | 40 ft | 60 ft | 80 ft | 100 ft | 120 ft | 140 ft |
|---|---|---|---|---|---|---|---|
| 2 HP | — | — | — | — | — | — | — |
| 3 HP | 63 | — | — | — | — | — | — |
| 5 HP | 101 | 94 | 86 | 78 | 69 | 60 | — |
| 7-1/2 HP | — | — | 107 | 102 | 98 | 93 | 87 |
| 10 HP | — | — | 107 | 102 | 98 | 93 | 87 |
Total head read from the published curves in Franklin’s FPS Submersible Catalog (Mi1007), pp. 3, 6, 9 and 12, digitized and rounded down to whole feet, at the plotted flows nearest 20%, 50% and 75% of where the curves end. 0 GPM is Franklin’s printed shut-off. Feet of head = PSI × 2.31. Franklin’s published curves and printed tables differ by more than 3% on the 90 GPM 2 HP, 90 GPM 3 HP and 90 GPM 10 HP builds. The head table follows the published curve, re-checked against Franklin’s chart; the 0 GPM column and the output tables follow the printed figures. Output tables as printed in Mi1007, pp. 4, 7, 10 and 13, at the 30 and 50 PSI rows; Franklin rounds them to whole GPM. Drop-pipe friction is not included (manufacturer note). — marks a point Franklin does not print.
The 35 GPM curves rise a few feet above the printed shut-off at low flow before they fall, so a low-flow column can read slightly above the shut-off.
Best operating range: Franklin shades the best-efficiency range on each published curve and prints no figures for it. The curves are in the image gallery.
From the Franklin 4 in and 6 in submersible pump owner’s manual (106467101).
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