| FLASH
ECONOMIZER HEAT RECOVERY SYSTEM
Flash
Economizer Selector Chart HR & HRB Models
| Delivered
Horse Power or
Boiler Size
LBs. Per Hour
|
SELECTOR CHART HR AND HRB
PERCENT BLOW DOWN
|
| 10% |
9% |
8% |
7% |
6% |
5% |
4% |
3% |
2% |
1% |
| 23188
HP/800,000
20290 HP/700,000 |
|
|
|
|
|
|
|
|
28
|
16
14 |
| 17391
HP/600,000
14493 HP/500,000 |
|
|
|
|
|
|
|
30
|
24
20 |
12
10 |
| 11594
HP/400,000
8696 HP/300,000 |
|
|
|
|
|
30
|
24
|
21
18 |
16
12 |
8
6 |
| 5797
HP/200,000
2899 HP/100,000 |
20
|
18
|
16
|
28
14 |
24
12 |
20
10 |
16
8 |
12
6 |
8
4 |
4
2 |
| 2647HP/90,000
2319 HP/80,000 |
18
16 |
16.2
14.4 |
14.4
12.8 |
12.6
11.2 |
10.8
9.6 |
9
8 |
7.2
6.4 |
5.4
4.8 |
3.6
3.2 |
1.8
1.6 |
| 2029
HP/70,000
1739 HP/60,000 |
14
12 |
12.6
10.8 |
11.2
9.6 |
9.8
8.4 |
8.4
7.2 |
7
6 |
5.6
4.8 |
4.2
3.6 |
2.8
2.4 |
1.4
1.2 |
| 1594
HP/50,000
1159 HP/40,000 |
10
8 |
9
7.2 |
8
6.4 |
7
5.6 |
6
4.8 |
5
4 |
4
3.2 |
3
2.4 |
2
1.6 |
1
.8 |
| 870
HP/30,000
580 HP/20,000 |
6
4 |
5.4
3.6 |
4.8
3.2 |
4.2
2.8 |
3.6
2.4 |
3
2 |
2.4
1.6 |
1.8
1.2 |
1.2
.8 |
6
.4 |
How
To Use Chart
1. Go across top of chart to percent of continuous blowdown
for boiler or boilers.
2. Go down left of chart to boiler size or combined size
of boilers.
3. Read Gallons per minute of continuous blowdown. This
value should be less than the Model number of the Economizer.
For Example 7% Continuous Blowdown on 100,000 Lbs./Hr.
Boiler is 14 GPM. Use Model AHR20 Economizer. If
more make-up capacity is required, chose AHRB 20-100.
Sizing
Charts
| MODEL NO. |
BLOWDOWN |
MAKEUP |
MODEL
NO. |
BLOWDONW |
MAKEUP |
| AHR-3 |
3
GPM |
9
GPM |
AHRB-3-15 |
3
GPM |
15
GPM |
| AHR-6 |
6
GPM |
12
GPM |
AHRB-6-30 |
6
GPM |
30
GPM |
| AHR-10 |
10
GPM |
20
GPM |
AHRB-10-50 |
10
GPM |
50
GPM |
| AHR-20 |
20
GPM |
40
GPM |
AHRB-20-100 |
20
GPM |
100
GPM |
| AHR-30 |
30
GPM |
60
GPM |
AHRB-30-150 |
30
GPM |
150
GPM |
|
