Install Instructions

Hydraulic characteristics
The fluid velocity at connections for Discal™ 551 series air separators is
recommended to not exceed 10.0 f/s. Above this speed, heavy internal
turbulance and noise can occur and air elimination efficiency begins to fall
measurably. Optimal air elimination performance occurs at fluid velocities of
4.0 f/s or less. See the flow capacity chart.
4
Optimal
(4.0 f/s)
FLOW CAPACITY
BRASS STEEL
3/4”
8.0
0.5
19.0
1.2
19.1
1”
9.3
0.6
22.1
1.4
32.5
1 1/4”
15.3
1.0
36.4
2.3
56.4
1 1/2”
23.9
1.5
56.8
3.6
73.1
2”
36.1
2.3
86.0
5.4
81
2”
37.3
2.4
88.8
5.6
87
2 1/2”
63.0
4.0
150.1
9.5
174
3”
95
6.0
227.4
14.3
208
4”
149
9.4
355.3
22.4
324
5”
259
16.3
616.4
38.9
520
6”
380
24.0
903.6
57.0
832
Size
GPM
GPM
Cv
Max.
(10.0 f/s)
3/4”- 1”
9.0
0.57
14.3
1.26
19.1
3/4” C
6.0
0.4
14.3
0.9
11.6
l/s
l/s
G (l/s) (gpm)
(
kPa
)
3/4" 1" 1 1/4" 1 1/2" 2” Steel 2 1/2” 3” 4” 3/4" C 5” 6” 2”
0.1
0.05
0.09
0.08
0.07
0.06
0.035
0.04
0.045
0.12
0.14
0.16
0.18
0.25
0.3
0.35
0.2
1.0
0.10
0.20
0.5
0.9
0.8
0.7
0.6
0.12
0.14
0.16
0.18
0,25
0.30
0.35
0.40
0.45
1.2
1.4
1.6
1.8
2.5
3
2
.
0
1
0.5
0.9
0.8
0.7
0.6
0.45
0.4
0.09
0.08
0.07
0.06
0.025
0.03
0.02
(ft of hd)
∆P
(ft of hd)
100
2
10
5
20 50
1000
200 500
0.1
0.05
0.09
0.08
0.07
0.06
0.035
0.04
0.045
0.12
0.14
0.16
0.18
0.25
0.3
0.35
0.2
1
0.5
0.9
0.8
0.7
0.6
0.45
0.4
0.025
0.03
0.02
6 7 8 9
12 14 16 18 25 30 35 40 45 60 70 80 90
120 140 160 180 250 400 450
300
350 600 700 800 900
3
3.5
4
4.5 2.5
2
G (m
3
/h) (gpm)
0,5
(mm wtr)
10
1 5
0,6 0,7 0,8 0,9 1,2 1,4 1,6 1,8 2,5
3
3,5
4
4,5
6 7 8 9
12 14 16 18 25 40 45
20
30 35
50
3/4" 1" 1 1/4" 1 1/2" 2” Steel 2 1/2”
100
60 70 80 90
3” 4” 3/4" C
120 140 160 180
200
5” 6” 2”
0.1
0.05
0.09
0.08
0.07
0.06
0.035
0.04
0.045
0.12
0.14
0.16
0.18
0.25
0.3
0.35
0.2
100
10
20
50
90
80
70
60
12
14
16
18
25
30
35
40
45
120
140
160
180
250
300
20
0
1
0.5
0.9
0.8
0.7
0.6
0.45
0.4
9
8
7
6
0.025
0.03
0.02
(ft of wtr)
P
(ft of wtr)
100
2
10
5
20 50
1000
200 500
0.1
0.05
0.09
0.08
0.07
0.06
0.035
0.04
0.045
0.12
0.14
0.16
0.18
0.25
0.3
0.35
0.2
1
0.5
0.9
0.8
0.7
0.6
0.45
0.4
0.025
0.03
0.02
6 7 8 9
12 14 16 18 25 30 35 40 45 60 70 80 90
120 140 160 180 250 400 450
300
350 600 700 800 900
3
3.5
4
4.5 2.5
2
0.5
10
1 5
0.6 0.7 0.8 0.9 1.2 1.4 1.6 1.8 2.5
3
3.5
4
4.5
6 7 8 9
12 14 16 18 25 40 45
20
30 35
50
60 70
0.25 0.40 0.45
0.20
0.30 0.35
3/4" - 1"
Vertical version