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540 Series Fluid Eductors are constructed of corrosion resistant PVC and specifically designed for water treatment applications. The eductor cartridge is chemically bonded inside the housing for years of trouble-free service. For optimum performance, eductors should be installed with a section of the straight pipe extending from the discharge area. These eductors can be installed horizontally or vertically. |
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TECHNICAL SPECIFICATIONS |
Min./max. operating pressure: 20 to 125 psi (1.37 to 8.6 bars) |
Operating temperature up to 140°F (60°) |
CONNECTIONS |
Available with FNPT ends and U.S. Standard socket weld ends |
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PRODUCT DIMENSIONS |
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FNPT Dimensions |
Socket Dimensions |
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Part
Number |
Connection Size
(Inches) |
Dimensions (Inches/mm) |
"A" |
"B" |
"C" |
"D" |
"E" |
QA-540-# * |
0.5 FNPT |
1.37 / 35 |
2.75 / 70 |
— |
1.31 / 33 |
— |
QA-540S-# * |
0.5 Socket |
1.37 / 35 |
2.75 / 70 |
— |
1.31 / 33 |
0.88 / 22 |
QA-541-# * |
0.75 FNPT |
1.72 / 44 |
3.44 / 88 |
— |
1.50 / 38 |
— |
QA-541S-# * |
0.75 Socket |
1.72 / 44 |
3.44 / 88 |
— |
1.56 / 40 |
1.00 / 25 |
QA-542-# * |
1.0 FNPT |
1.72 / 44 |
3.44 / 88 |
— |
1.81 / 46 |
— |
QA-542S-# * |
1.0 Socket |
1.88 / 48 |
3.75 / 96 |
— |
1.81 / 46 |
1.13 / 20 |
QA-544-# * |
1.5 FNPT |
2.09 / 53 |
4.19 / 106 |
5.25 / 133 |
2.38 / 60 |
— |
QA-544S-# * |
1.5 Socket |
2.38 / 60 |
4.75 / 120 |
5.63 / 143 |
2.38 / 60 |
1.38 / 35 |
QA-546-# * |
2.0 FNPT |
2.78 / 71 |
5.56 / 142 |
6.63 / 168 |
3.00 / 76 |
— |
QA-546S-# * |
2.0 Socket |
2.78 / 71 |
5.56 / 142 |
6.63 / 168 |
3.06 / 78 |
1.50 / 38 |
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* Substitute nozzle number for "#" (see second row of Performance Tables below).
Examples: QA-540-3 is 1/2 inch FNPT red code eductor. QA-544S-5 is 1-1/2 inch socket orange code eductor. |
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In addition to the below Performance Tables,
a Performance Calculator is available. |
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PERFORMANCE TABLES |
Data based on: |
1. Water media specific gravity 1.0 |
3. Discharge head 0 ft. (0 meter) |
2. Suction lift 3 ft. (1 meter) |
4. Media temperature 60°F (15°C) |
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Model 540 — 1/2 Inch Connections |
Inlet
Pressure
(PSI / Bars) |
Nozzle Flow Rate (GPM / LPM) |
Draw
Factor |
540-1
Black |
540-2
Brown |
540-3
Red |
540-4
White |
540-5
Blue |
20 / 1.37 |
0.13 / 0.52 |
0.18 / 0.73 |
0.31 / 1.22 |
0.62 / 2.44 |
0.90 / 3.50 |
0.80 |
30 / 2.06 |
0.16 / 0.60 |
0.23 / 0.84 |
0.38 / 1.42 |
0.76 / 2.82 |
1.10 / 4.00 |
0.78 |
40 / 2.75 |
0.19 / 0.74 |
0.26 / 1.00 |
0.44 / 1.74 |
0.88 / 3.50 |
1.20 / 4.90 |
0.82 |
50 / 3.44 |
0.21 / 0.86 |
0.29 / 1.20 |
0.49 / 2.02 |
0.98 / 4.00 |
1.40 / 5.70 |
0.83 |
60 / 4.13 |
0.23 / 0.91 |
0.32 / 1.27 |
0.54 / 2.14 |
1.10 / 4.20 |
1.50 / 6.08 |
0.85 |
70 / 4.82 |
0.25 / 0.96 |
0.35 / 1.34 |
0.58 / 2.25 |
1.20 / 4.40 |
1.65 / 6.40 |
0.88 |
80 / 5.51 |
0.27 / 1.05 |
0.37 / 1.47 |
0.62 / 2.47 |
1.30 / 4.90 |
1.80 / 7.00 |
0.85 |
100 / 6.9 |
0.30 / 1.13 |
0.42 / 1.60 |
0.70 / 2.66 |
1.40 / 5.20 |
2.00 / 7.50 |
0.83 |
120 / 8.27 |
0.33 / 1.21 |
0.46 / 1.70 |
0.76 / 2.84 |
1.50 / 5.60 |
2.20 / 8.10 |
0.80 |
Nozzle Dia. |
0.038 |
0.042 |
0.052 |
0.070 |
0.086 |
— |
Throat Dia. |
0.076 |
0.086 |
0.104 |
0.140 |
0.172 |
— |
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Model 541 — 3/4 Inch Connections |
Inlet
Pressure
(PSI / Bars) |
Nozzle Flow Rate (GPM / LPM) |
Draw
Factor |
541-1
Red |
541-2
White |
541-3
Blue |
20 / 1.37 |
1.07 / 4.30 |
1.80 / 7.20 |
2.90 / 11.2 |
1.15 |
30 / 2.06 |
1.30 / 4.90 |
2.10 / 8.30 |
3.50 / 13.0 |
1.20 |
40 / 2.75 |
1.50 / 6.00 |
2.50 / 10.2 |
4.00 / 16.0 |
1.26 |
50 / 3.44 |
1.70 / 7.00 |
2.80 / 11.8 |
4.50 / 18.4 |
1.25 |
60 / 4.13 |
1.80 / 7.40 |
3.10 / 12.5 |
4.90 / 19.5 |
1.15 |
70 / 4.82 |
2.00 / 7.80 |
3.30 / 13.1 |
5.30 / 20.5 |
1.08 |
80 / 5.51 |
2.15 / 8.50 |
3.60 / 14.4 |
5.70 / 22.5 |
1.00 |
100 / 6.9 |
2.40 / 9.20 |
4.00 / 15.5 |
6.40 / 24.3 |
0.95 |
120 / 8.27 |
2.60 / 9.80 |
4.30 / 16.6 |
7.00 / 26.0 |
0.90 |
Nozzle Dia. |
0.098 |
0.125 |
0.157 |
— |
Throat Dia. |
0.196 |
0.250 |
0.312 |
— |
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Model 542 — 1 Inch Connections |
Inlet
Pressure
(PSI / Bars) |
Nozzle Flow Rate (GPM / LPM) |
Draw
Factor |
542-1
Red |
542-2
White |
542-3
Blue |
20 / 1.37 |
4.40 / 17.3 |
5.80 / 22.0 |
8.20 / 31.7 |
1.04 |
30 / 2.06 |
5.40 / 20.0 |
7.10 / 25.0 |
10.0 / 36.0 |
0.94 |
40 / 2.75 |
6.20 / 24.5 |
8.20 / 31.0 |
11.7 / 45.0 |
0.95 |
50 / 3.44 |
7.00 / 28.4 |
9.20 / 36.0 |
13.0 / 52.0 |
0.85 |
60 / 4.13 |
7.60 / 30.0 |
10.0 / 38.0 |
14.4 / 55.0 |
0.82 |
70 / 4.82 |
8.20 / 31.6 |
10.8 / 40.0 |
15.5 / 58.0 |
0.80 |
80 / 5.51 |
8.70 / 34.8 |
11.6 / 44.0 |
16.6 / 63.0 |
0.78 |
100 / 6.9 |
9.80 / 37.5 |
13.0 / 47.5 |
18.5 / 68.5 |
0.75 |
120 / 8.27 |
10.7 / 40.0 |
14.2 / 50.7 |
20.0 / 73.0 |
0.70 |
Nozzle Dia. |
0.188 |
0.219 |
0.250 |
— |
Throat Dia. |
0.375 |
0.438 |
0.500 |
— |
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Model 544 — 1-1/2 Inch Connections |
Inlet
Pressure
(PSI / Bars) |
Nozzle Flow Rate (GPM / LPM) |
Draw
Factor |
544-1
Red |
544-2
White |
544-3
Blue |
544-4
Yellow |
544-5
Orange |
20 / 1.37 |
8.70 / 34.2 |
13.4 / 52.5 |
17.0 / 66.0 |
21.0 / 83.0 |
24.5 / 97.6 |
1.08 |
30 / 2.06 |
10.6 / 39.5 |
16.4 / 60.0 |
20.7 / 76.0 |
25.7 / 96.0 |
30.0 / 112 |
1.12 |
40 / 2.75 |
12.3 / 48.4 |
19.0 / 74.4 |
24.0 / 93.4 |
29.7 / 117 |
34.7 / 138 |
1.16 |
50 / 3.44 |
13.8 / 58.0 |
21.2 / 86.0 |
26.8 / 108 |
33.2 / 136 |
38.8 / 160 |
1.15 |
60 / 4.13 |
15.0 / 59.3 |
23.0 / 91.0 |
29.5 / 114 |
36.3 / 144 |
42.5 / 170 |
0.95 |
70 / 4.82 |
16.3 / 62.0 |
25.0 / 96.0 |
31.8 / 120 |
39.3 / 152 |
46.0 / 178 |
0.90 |
80 / 5.51 |
17.4 / 68.0 |
27.0 / 105 |
34.0 / 132 |
42.0 / 166 |
49.0 / 195 |
0.80 |
100 / 6.9 |
19.5 / 74.0 |
30.0 / 113 |
38.0 / 142 |
47.0 / 180 |
55.0 / 210 |
0.80 |
120 / 8.27 |
21.3 / 78.0 |
32.8 / 120 |
41.5 / 152 |
51.5 / 190 |
60.0 / 225 |
0.75 |
Nozzle Dia. |
0.281 |
0.312 |
0.359 |
0.406 |
0.438 |
— |
Throat Dia. |
0.562 |
0.625 |
0.719 |
0.812 |
0.875 |
— |
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Model 546 — 2 Inch Connections |
Inlet
Pressure
(PSI / Bars) |
Nozzle Flow Rate (GPM / LPM) |
Draw
Factor |
546-1
Red |
546-2
White |
546-3
Blue |
546-4
Yellow |
546-5
Orange |
20 / 1.37 |
29.5 / 116 |
35.7 / 140 |
28.4 / 152 |
45.0 / 178 |
52.0 / 207 |
1.08 |
30 / 2.06 |
36.0 / 134 |
43.7 / 162 |
47.0 / 176 |
55.0 / 205 |
64.0 / 240 |
1.12 |
40 / 2.75 |
41.7 / 164 |
50.0 / 198 |
54.0 /216 |
64.0 / 252 |
74.0 / 294 |
1.16 |
50 / 3.44 |
46.6 / 190 |
56.5 / 230 |
61.0 / 250 |
71.4 / 292 |
83.0 / 340 |
1.15 |
60 / 4.13 |
51.0 / 200 |
62.0 / 244 |
66.5 / 265 |
78.0 / 310 |
91.0 / 360 |
0.95 |
70 / 4.82 |
55.0 / 212 |
67.0 / 256 |
71.0 / 278 |
84.5 / 325 |
98.0 / 380 |
0.90 |
80 / 5.51 |
59.0 / 232 |
71.0 / 280 |
77.0 / 306 |
90.0 / 357 |
106 / 416 |
0.80 |
100 / 6.9 |
66.0 / 250 |
80.0 / 300 |
86.0 / 330 |
100 / 385 |
118 / 445 |
0.80 |
120 / 8.27 |
72.0 / 268 |
87.0 / 325 |
94.0 / 350 |
110 / 410 |
130 / 480 |
0.75 |
Nozzle Dia. |
0.469 |
0.500 |
0.547 |
0.578 |
0.625 |
— |
Throat Dia. |
0.938 |
1.000 |
1.094 |
1.156 |
1.250 |
— |
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EFFICIENCY GRAPH |
SPECIFIC GRAVITY TABLE |
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NOTE: Click on graph above to enlarge. |
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TO CALCULATE DRAW RATE |
Where A = Nozzle Flow Rate; B = Draw Factor; C = Efficiency Factor; D = Specific Gravity |
DRAW RATE = (A x B x C) ÷ D |
Example: Find draw rate for 30% hydrochloric acid at inlet pressure of 60 psi and back pressure of 5 psi for 1 inch blue code eductor. |
From Performance Tables: |
At 60 psi, Model 542-3 (blue code)
A = Nozzle Flow Rate = 14.4 gpm
B = Draw Factor = 0.82 |
From Efficiency Graph: |
C = 5 psi back pressure @ 60 psi inlet pressure = 74% |
From Specific Gravity Table: |
D = Specific Gravity of 30% Hydrochloric Acid = 1.14 |
Draw Rate = (14.4 x 0.82 x 0.74) ÷ 1.14 = 7.66 gpm |
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