Brochure
Flow curves
10
0.1
2
5
1
0.2
0.3
0.5
20
50
Δp (psi)
G (l/min) (
gpm
)
10
2
3
5
20
0.1
1
0.2
0.3
0.5
(psi) (bar)
10
2
3
5
20
1
0
.5
10
2
5
2
0
0.01
0.1
0.02
0.03
0.05
1.0
0.2
0.3
0.5
4
0.4 0.4
4
0.04
0.4
0.3
Flow rate-use
The Caleffi 5213 series is a thermostatic mixing valve suitable for point of use
application. For this reason, the flow rate through the valve is the same as that of
the final outlet, e.g. mixer or tap for washbasin, shower or bath. In order to ensure
the set temperature, the thermostatic mixing valve must have a minimun flow rate
of 1 gpm (4 l/min).
The system must be sized taking into account the current legislation with regard to
the nominal flow rate of each outlet.
Public buildings, hospitals, schools
In these applications, for the type of users of hot water like children, eldery or
disabled people, the risk of being scalded is very high.
In these installations, the two supply lines of the hot water from the storage and of the
cold water can have different origin and work at different pressures.
In the event of failure of the cold or hot water supply, the thermostatic mixing valve shuts
off the water flow from the outlet, thus avoiding possible scalding or thermal shocks.
Installation
Before installing a Caleffi Series 5213 mixer, the system must be inspected to
ensure that its operating conditions are within the range of the mixer, checking, for
example, the supply temperature, supply pressure, etc.
Systems where the Caleffi Series 5213 mixer is to be fitted must be drained and cleaned
out to remove any dirt or debris which may have accumulated during installation.
The installation of filters of appropriate capacity at the inlet of the water from the
mains supply is always advisable.
Caleffi Series 5213 mixers must be installed by qualified personnel in accordance with
the diagrams in this brochure, taking into account all current applicable standards.
Caleffi Series 5213 mixers can be installed in any position, either vertical or horizontal,
or upside down.
The following are shown on the mixer body:
- Hot water inlet, marked “H” (Hot).
- Cold water inlet, marked “C” (Cold).
- Mixed water outlet, marked “MIX”.
Check valves
In order to prevent undesirable cross flow, check valves should be installed in
systems with thermostatic mixing valves. The Caleffi 5213 series is supplied
complete with the check valves at the hot and cold inlets.
Commissioning
In view of the special purpose of the thermostatic mixing valve, it must be
commissioned in accordance with current standards by qualified personnel using
suitable temperature measuring equipment. Use of a digital thermometer is
recommended for determining the final setting of the mixed water temperature.
Kv=1.7Cv= 2
Temperature adjustment
Temperature setting can be adjusted by removing
the cap from the valve body and reversing the cap
onto the temperature adjustment spindle.
In accordance with the anti-scald requirements,
mixed water at the outlet of the sanitary fixtures must
not exceed the following values:
120°F (49°C) for domestic or normal buildings
110°F (43.3°C) for hospitals or special buildings
100°F (38°C) for children
Temperature setting can then be locked at the
desired value using the locking nut.
View of temperature adjustment
Fitting temperature adjustment cap
Temperature adjustment cap in place
Locking adjustment spindle with locking nut
1
2
3
4