Idiomas disponibles
Idiomas disponibles
Three-way valve
Technical description
instructions.
The instructions must be available at the place of use of
the product.
!
Pass on these instructions and all applicable
instructions to the operator.
2.3.3 Risk of injury due to high dead weight
of the product
!
Wear safety shoes during installation.
!
Call in a second person for the installation.
2.3.4 Risk of burns on hot components and
surfaces
!
Allow the product to cool down before working
on it.
!
Wear suitable protective clothing to avoid
unprotected contact with hot fi ttings and system
components.
2.3.5 Risk of injury from improper work
Stored energy, angular components, points and corners on
and in the product can cause injuries.
!
Ensure there is suffi cient space before starting
work.
!
Handle open or sharp-edged components with
care.
!
Keep the working area tidy and clean to avoid
sources of accidents.
3. Technical description
3.1
Design
1
Fig. 1:
Three-way valve design
1
Connection B
2
Protection cap
3
Connection A
4
Connection AB
1000103434_10242287 000 01
3.2
Functional description
The Tri CTB is a three-way valve which can be used as
diverting or mixing valve. When used as diverting valve,
the Tri CTB has one inlet (AB) and two outlets (A und B).
Depending on the spindle position, the fl ow is diverted to
either outlet A or outlet B.
When used as mixing valve, the Tri CTB has two inlets (A
and B) and one outlet (AB). Depending on the spindle
position, the fl ow is mixed between inlet A and B.
Thermal or motorised actuators are used for commercially
available on/off / fl oating controllers and controls (see
chapter 4.1.1 on page 17) whereby the passage (A–AB)
is open in the lower stroke position and connection (B) is
closed.
Fig. 2:
Passage A-AB
In upper stroke position, it is the other way round.
2
3
4
Fig. 3:
Passage AB-A
No pressure surges occur in the system during the
changeover and the volume fl ow remains almost constant.
When used with a modulating controller, the temperature
controllers with immersion sensor or temperature
controllers with contact sensor are used. These are
proportional controllers requiring no auxiliary energy and
allowing intermediate positions. When the temperature at
the sensor rises, passage A–AB is opened and B–AB is
closed.
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