Install Instructions

Flow curves
.1
0.23
2.3
0.46
0.69
1.15
.3
1
∆p (ft of head)
G
(l/s) (gpm)
23
4.6
6.9
11.5
46
0.1
1
0.2
0.3
0.5
(psi) (bar)
10
2
3
5
20
10
2 5
20
0.01
0.1
0.02
0.03
0.05
1.0
0.2
0.3
0.5
9.2
0.92 0.4
4
0.04
0.4
50
100
1.5
3.25
1” 1 1/2” 2”
1 1/4”
 ∆p

50
160
6
10
2.0
5.0
115
172
75
Flow should never exceed standards for pipe size and material.
Size Connection Model
Min.
Flow*
(GPM)
Max.
Flow*
(GPM) CV
1" NPT 523160A 4.4 40 7
1" Sweat 523168A 4.4 40 7
1 ¼" NPT 523170A 4.4 40 7.6
1 ¼" Sweat w/
temp gauge
523177A 4.4 40 7.6
1¼" Sweat 523178A 4.4 40 7.6
1 ½" NPT 523180A 8.8 70 13
1 ½" Sweat 523188A 8.8 70 13
2" NPT 523190A 8.8 70 14.2
2" Sweat 523198A 8.8 70 14.2
*Recommended flow rates for temperature stabilty: ± 3°F (± 2°C).
5