Product Overview

Flow curves
10
0.1
2 5
1
0.2
0.3
0.5
20 50
p (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 .5 gpm
(2 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=1.7
Cv= 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 scald-protection 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
Δ