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How to Size a Non Electric Pump |
| Sizing Your Fluid Recovery Pump |
EXAMPLE |
| 1. What is the desired lbs./hr. of fluid to be pumped? |
2800 Ibs./hr. 25 PSIG 15 PSI* |
| 2. What is the available motive gas or steam pressure? |
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| 3. What is your total lift or back pressure? |
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Total lift and back pressure is the total pressure that the pump will be working against. This includes changes in fluid elevation, check valve cracking pressures, and any minor losses due to the piping system. A one foot change in elevation is equivalent to a .5 PSI back pressure.
Total Lift or Back Pressure = (.5 x Total Feet of Lift) + Minor Losses of Piping |
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| *Example |
Vertical lift = 28 ft. |
|
Minor Losses |
= 1 PSI |
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*Total Lift or Back Pressure = (.5 x 28) + 1 |
= 15 PSI |
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| 4. With the above specifications and a minimum of a 12-inch filling head, select the pump from the table below. Find 25 PSIG Operating Inlet Pressure. Then, find 15 PSI Total Lift or Back Pressure. You can see that a 1 inch check valve kit will allow you to achieve the 2800 Ib./hr. pumping rate you desire. |
|
OPERATING |
TOTAL LIFT OR BACK |
CHECK VA LVE & PIPING SIZE |
INLET PRESSURE |
PRESSURE |
|
PSIG |
BAR |
PSIG |
BAR |
1" |
1-1/2" |
2" STD. |
2" H.C. |
|
|
15 |
1.0 |
3640 |
6580 |
9380 |
15,820 |
125 |
8.6 |
40 |
2.8 |
3360 |
6300 |
8820 |
14,840 |
|
|
60 |
4.1 |
3220 |
6020 |
8400 |
14 280 |
|
|
15 |
1.0 |
3640 |
6440 |
9240 |
15,680 |
100 |
6.9 |
40 |
2.8 |
3360 |
5880 |
8540 |
14,560 |
|
|
60 |
4.1 |
3080 |
5040 |
8120 |
13 860 |
|
|
15 |
1.0 |
3500 |
5880 |
9240 |
15,680 |
75 |
5.2 |
40 |
2.8 |
3360 |
5320 |
8120 |
13,720 |
|
|
60 |
4.1 |
2800 |
4760 |
7000 |
11900 |
|
|
10 |
0.69 |
3360 |
5600 |
8960 |
15,120 |
50 |
3.4 |
25 |
1.7 |
3220 |
5180 |
8120 |
13,720 |
|
|
40 |
2.8 |
2800 |
4480 |
6720 |
11480 |
|
|
5 |
0.34 |
3220 |
5880 |
8540 |
14,560 |
25 |
1.7 |
10 |
0.69 |
2940 |
5460 |
7840 |
13,440 |
|
|
15 |
1.0 |
2800 |
4620 |
7140 |
12180 |
10 |
.69 |
2 |
0.14 |
2800 |
4620 |
7140 |
12,180 |
|
|
5 |
0.34 |
2520 |
4060 |
5740 |
9,800 |
5 |
.34 |
2 |
0.14 |
2240 |
3780 |
5400 |
8,600 |
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CHECK VALVE PIPING SIZE
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FILLING HEAD SIZE & CONVERSION FACTOR
6" 152 mm |
12" 305 mm |
24" 610 mm |
36" 914 mm |
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|
.70 X |
1.0 X |
1.2 X |
1.35 X |
.85 X |
1.0 X |
1.2 X |
1.35 X |
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| Pump Capacities |
In pounds per hour for liquids of 0.9 to 1.0 specific gravity (lower on request), with 12" filling head installed as recommended above pump top. Inlet port 3" N.P.T.; Outlet port 2" N.P.T. Optional ports and check valves available.
For capacities in GPM, multiply Ibs./hr. by .002. For Kg/hr., multiply by .454. For liquid specific gravities below .9, call the factory. |
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