Product Overview

Locking the setting
Position the knob at the required value,
unscrew the top screw, slide off the knob and
put it back in such a way that the handle fits
into the internal slot of the knob. Tighten the
head screw .
M
I
N
M
A
X
7
1
2
3
Flow curve
T
Key to symbols
Safety relief valve
Check valve
Isolation valve
Expansion vessel
Filter
Pump
Radiant panels heating system application
HOTCOLD
MIX
Radiant panel loop
MIN
M
A
X
7
1
2
Domestic water system with recirculation
ASSE 1017 model application
MIN
M
A
X
7
1
2
STORAGE
HOT WATER
HEATER
COLD
BLUE
HOT
RED
MIX
MIN M
A X
7
1
2
RETURN
SUPPLY
C
A
LE
F
F
I
CA
L
E
FF
I
CALEFFI
CALEFFI
10
0
8
6
4
2
10
0
8
6
4
2
CALEFFI
CALEFFI
10
0
8
6
4
2
10
0
8
6
4
2
10
0
8
6
4
2
10
0
8
6
4
2
Application diagrams
Index
Point
Flow range
Min 1234567Max
77 84 91 102 109 118 126 136 149
Pos.
T (ϒF)
with: T
HOT
= 155ϒF (68ϒC) · T
COLD
= 55ϒF (13ϒC) · P = 43 psi (3 bar)
25 29 33 39 43 48 52 58 65T (ϒC)
95
104
35
40 43 47 50 54 58 61 66
109
117
122
129
136 142 150
INLET
Setting the temperature
The temperature is set to the required value by means of the adjusting
knob with the graduated scale on the top of the valve.
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).
.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.