How to Select a Syphon
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Example:
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Find the pumping pressure for a 3" syphon:
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GlVEN:
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Operation Pressure 90 PSI
Suction Lift l0 Feet
Discharge Head 40 Feet
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- Find "Capacity in GPM" from Table 1. (31 GPM)
- Find the "Capacity Factor" for a 3" syphon from Table 2. (4.0)
- Multiply the capacity by the capacity factor to get the pumping capacity.
31 X 4.0 = 124 GPM (Water)
Find the steam consumption for the 3" syphon at 90 PSI
- Find "Steam Consumption" in lb./hr. at 90 PSI in table 1. (217 lb./hr.)
- Find the "Consumption Factor" in table 3 for a 3" syphon. (2.83)
- Multiply the steam consumption by the capacity factor:
Capacity in GPM of 1 1/2' Eureka Syphon
(Pumping Water with Steam)
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TABLE 1
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SUCTION LIFT IN FT. OF WATER
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DISCHARGE HEAD IN FT. OF WATER
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STEAM PRESSURE IN PSI
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| 30.35* |
60 |
90 |
150 |
| - |
0 |
{38} |
{35} |
31 |
24 |
| 10 |
10 |
17 |
{35} |
{31} |
24 |
| - |
40 |
- |
- |
{31} |
24 |
| - |
0 |
{25} |
{21} |
16 |
7 |
| 20 |
10 |
5 |
{20} |
{16} |
7 |
| - |
40 |
- |
- |
{15} |
7 |
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STEAM CONSUPTION IN LBS. / HR.
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100 |
160 |
217 |
317 |
Note:numbers in brackets { } indicate efficient operation
* Capacities for 3" - 6" syphons are at 35 PSI
CAPACITY FACTORS:
Pumping Capacity of Water in GPM
| TABLE 2 |
| 3/4" |
1.0" |
1 1/4" |
1 1/2" |
2" |
2 1/2" |
3" |
4" |
6" |
| .31 |
.46 |
.8 |
1.0 |
1.8 |
2.8 |
4.0 |
7.2 |
16 |
Steam Consumption in LB./HR.
| TABLE 3 |
| 3/4" |
1.0" |
1 1/4" |
1 1/2" |
2" |
2 1/2" |
3" |
4" |
6" |
| .25 |
.44 |
.68 |
1.0 |
1.76 |
2.25 |
2.83 |
3.44 |
6.5 |
DIMENSIONS
SIZE
(In.) |
Dimensions (in.) |
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| A |
B |
C |
D |
E |
F
(NPT) |
G
(NPT) |
Wt.
(lbs.) |
| 3/4 |
5 3/4 |
2 1/4 |
3/16 |
1 1/2 |
1 1/4 |
3/4 |
3/8 |
1 1/2 |
| 1 |
7 3/8 |
3 |
1/4 |
2 3/8 |
1 1/2 |
1 |
1/2 |
2 1/4 |
| 1 1/4 |
9 |
3 7/8 |
5/16 |
2 1/8 |
1 3/4 |
1 1/4 |
3/4 |
4 1/4 |
| 1 1/2 |
9 1/4 |
4 |
3/8 |
2 1/2 |
1 3/4 |
1 1/2 |
3/4 |
5 |
| 2 |
11 3/4 |
4 1/4 |
1/2 |
4 1/2 |
2 1/4 |
2 |
1 |
7 3/4 |
| 2 1/2 |
14 3/8 |
5 1/4 |
9/16 |
5 7/8 |
2 3/4 |
2 1/2 |
1 1/4 |
12 |
| 3 |
16 1/4 |
5 7/8 |
5/8 |
6 3/8 |
3 |
3 |
1 1/2 |
15 |
| 4 |
20 1/4 |
6 5/8 |
11/16 |
9 |
3 1/2 |
4 |
1 1/2 |
27 |
| 6 |
27 1/2 |
8 1/4 |
15/16 |
13 1/4 |
4 3/4 |
6 |
1 1/2 |
53 |
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