Technical Sheet

HOT
COLD
MIX
MIN M
A
X 7 1 2
A
FE
D
B B
C
A
A
HOT
COLD
MIX
MIN M
A
X 7 1 2
A
FE
D
B B
C
A
A
MIX
E
D
A
30
50
70
90
110
130
150
170
190
210
ϒF
110
120
130
140
150
160
170
0,11 10 100 1.000 10.000 Seconds
Partial burning
Total burning
Safety condition.
Maximum exposure time
at a given temperature
HOT
COLD
MIX
MIN M
A
X 7 1 2
A
FE
D
B B
C
A
A
HOT
COLD
MIX
MIN M
A
X 7 1 2
A
FE
D
B B
C
A
A
MIX
E
D
A
30
50
70
90
110
130
150
170
190
210
ϒF
Dimensions
Temperature — exposure time
Code A B C D E F Wt. (lb.)
521400A
1
⁄2" 2
5
⁄8" 5
1
⁄4" 5
15
⁄16" 3
3
⁄8" 2
9
⁄16" 2.5
521400AC
1
⁄2" 2
5
⁄8" 5
1
⁄4" 5
15
⁄16" 3
3
⁄8" 2
9
⁄16" 2.5
521500A
3
⁄4" 2
5
⁄8" 5
1
⁄4" 5
15
⁄16" 3
3
⁄8" 2
9
⁄16" 2.5
521500AC
3
⁄4" 3" 6" 5
15
⁄16" 3
3
⁄8" 2
9
⁄16" 2.5
521600A 1" 2
7
⁄8" 5
3
⁄4" 6
1
⁄4" 3
11
⁄16" 2
9
⁄16" 2.5
521600AC 1" 3
1
⁄16" 6
1
⁄8" 6
1
⁄4" 3
11
⁄16" 2
9
⁄16" 2.5
Code A B C D E F Wt. (lb.)
521409A
1
⁄2" 2
1
⁄4" 4
1
⁄2" 5
5
⁄8" 3
1
⁄16" 2
9
⁄16" 2.5
521409AC
1
⁄2" 2
7
⁄8" 5
3
⁄4" 5
5
⁄8" 3
1
⁄16" 2
9
⁄16" 2.5
521509A
3
⁄4" 2
1
⁄2" 5" 5
13
⁄16" 3
1
⁄4" 2
9
⁄16" 2.5
521519A*
3
⁄4" 2
1
⁄2" 5" 7
13
⁄16" 4
5
⁄8" 2
9
⁄16" 2.8
521509AC
3
⁄4" 3
1
⁄16" 6
1
⁄8" 5
13
⁄16" 3
1
⁄4" 2
9
⁄16" 2.5
521519AC*
3
⁄4" 3
1
⁄16" 6
1
⁄8" 7
13
⁄16" 4
5
⁄8" 2
9
⁄16" 2.8
521609A 1" 3
1
⁄16" 6
1
⁄8" 6
7
⁄16" 3
7
⁄8" 2
9
⁄16" 2.5
521619A* 1" 3
1
⁄16" 6
1
⁄8" 7
13
⁄16" 5
1
⁄4" 2
9
⁄16" 2.8
521609AC 1" 3
1
⁄4" 6
1
⁄2" 6
7
⁄16" 3
7
⁄8" 2
9
⁄16" 2.5
521619AC* 1" 3
1
⁄4" 6
1
⁄2" 7
13
⁄16" 5
1
⁄4" 2
9
⁄16" 2.8
*Model with integral outlet temperature gauge
Legionella-scalding risk
In systems producing domestic hot water with storage, in order to
avoid the dangerous infection known as Legionella, the hot water must
be stored at a temperature of at least 140°F. At this temperature it is
certain that the growth of the bacteria causing this infection will be
totally eliminated. At this temperature, however, the water cannot be
used directly.
As shown on the diagram opposite, temperatures of more than 120°F
can cause burning very quickly. For example, at 130°F partial burning
will occurr in approximately 30 seconds, while at 140°F partial burning
will occurr in approximately 5 seconds. The time may be reduced by 50
percent or more for children and elderly people.
In view of the above, it is necessary to install a thermostatic mixing valve
which can:
- reduce the temperature at the point of use to a value lower than that
of storage and suitable for sanitary users. For safety reasons, it is
advisable to limit the mixed water temperature to 120°F;
- maintain the temperature constant when the incoming pressure and
temperature conditions vary.
NPT connections Sweat connections