Operating principle
The thermostatic mixing valve mixes the
hot and cold water at the inlets to maintain
constant mixed water at the desired set
temperature. The TankMixer™ 520 series
point of distribution mixing valve is an angled
configuration combined with a flexible hose
and cold water tee for easy installation to
most water heaters for direct mounting to
the universal ¾” male NPT threaded top
pipe connections with a variety of outlet
connection styles. This provides increased
usable hot water capacity on existing or new
high efficiency water heaters by allowing
water to be stored at a higher temperature
and safely delivered at lower adjustable
temperatures to all fixtures. In addition, it
can be used to reduce legionella growth
by allowing the water heater thermostat to
be set at 140°F. The flexible hose length
allows mounting to all water heater tank
sizes. The TankMixer™ 520_AX series comes
standard with a recirculation port that can be
plugged or used for connecting to a hot water
recirculation loop.
5
Flow curve
Kv = 1.7
0.
1
10
0.023
0.23
0.046
0.069
0.02
0.05
0.
2
0.
5
0.115
2.3
0.46
0.69
1.15
20
50
∆
p
(ft of head)
G
(l/min)
(gpm
)
23
4.6
6.9
11.5
46
0.01
0.1
0.02
0.03
0.05
1
0.2
0.3
0.5
(psi) (bar)
10
2
3
5
20
1
0.
1
0.2
0.5
0.0
5
10
2
5
20
0.001
0.01
0.002
0.003
0.005
0.1
0.02
0.03
0.05
1.0
0.2
0.3
0.5
Cv = 2.0
9.2
0.092
0.92
0.04
0.4
4
0.004
0.04
0.4
50
115
161
50
70
2.0
5.0
190
70
100
140
