Danfoss EV210B Instrucciones de funcionamiento
IC.PS.600.A4.02 / 520B2809
how to use
solenoid valves
I N D U S T R I A L A U T O M AT I O N
MAKING MODERN LIVING POSSIBLE
IC.PS.600.A4.02 / 520B2809
Flexible and user-
friendly
Danfoss solenoid valve bodies and electrical
coils are normally supplied separately and
then combined together. They are assembled
quickly and simply without any tools. This
provides optimum product exibility and
availability. If a coil does need to be replaced
then it can be done without stopping or
draining any system.
The solenoid valves are also available as
assembled units if required.
One call and
you’re in control
One call to Danfoss gives you access to an entire range of high-quality industrial controls. The Danfoss line encompasses
components for industial monitoring and control systems based on the principles of pressure and temperature
measurement, electrical power, and uid control, and includes:
• Electro-mechanical contactors
• Electronic contactors and motor controllers
• Pressure and temperature switches
• Pressure transmitters
• Temperature sensors and transmitters
• Solenoid valves
• Externally operated valves
• Thermostatically operated valves
Given their important monitoring and control functions, Danfoss components are designed for accuracy, reliabillity
and long life. And our determination to guarantee a high-quality product is matched by an equally strong commitment
to customer service. A specialist in the Danfoss industrial controls group can advise you on product selection and
conguration, based on long experience in your industry.You’ll nd that with sales and service centers in over 100
countries, Danfoss is usually only a local call away.
1
© Danfoss A/S (IA-MC/mhe) 05-2007 / 520B2809IC.PS.600.A4.02 / 520B2809
This booklet has been compiled to help in the instal-
lation of compact and high performance solenoid
valves and in locating faults in systems with solenoid
valves.
The booklet also contains an overview of solenoid
valves with dimensions to help in sizing valves for new
installations and the modernisation of existing plant.
The compact range has small physical dimensions for
control of ow where space is limited.
The high performance range is a sturdy and universal
valve program for control of ow in industrial plants
and within heating and sanitary systems.
solenoid valves
how to use
Contents Identication 3
Installation 5
How to choose 12
Valve overview 16
Seal material 20
Coils 21
Opening and closing times 23
Fault location 25
Spare parts high performance (blue) range
30
Spare parts compact (black) range 38
Tools 40
2IC.PS.600.A4.02 / 520B2809
IC.PS.600.A4.02 / 520B2809
Choosing the correct
solenoid valve
Symbolise valves used in
a closed circuit system,
typically with low
dierential pressures.
Symbolise valves
used in an open sys-
tem. Used typically
for drinking water.
Dierential pressure
higher than 0,5 bar.
Note that this booklet describes only brass
solenoid valves.
For other types, please contact Danfoss.
Solenoid valves
Note !
For more details see page 11.
3
IC.PS.600.A4.02 / 520B2809
© Danfoss A/S (IA-MC/mhe) 05-2007 / 520B2809IC.PS.600.A4.02 / 520B2809
Ο
Identication of Danfoss solenoid valves:
Illustration 1 shows the label with relevant informa-
tion that is attached to the coil.
The example here is from an EV220B solenoid
valve:
15: 15 mm orice
B: Brass body material
G 12: ISO 228/1, 1/2 inch connection
E: EPDM seal material
NC: Normally closed
Identication
Danfoss
solenoid valves
The coil type (BB230AS) is printed on the front of
the coil as well as voltage (V) and frequency (Hz)
- see illustration 2.
After identication, see the rst section of this
handbook.
1
2
B - Valve
High performance
4IC.PS.600.A4.02 / 520B2809
IC.PS.600.A4.02 / 520B2809
Ο
If no code is stamped in the valve, the following
information will be of great help when ordering
Danfoss solenoid valves as replacements:
• Application (closed circuit, open
system or drain application)?
• Function (de-energised open or
closed)?
• End connection?
• Medium (water, oil, air, etc.)?
• kvvalue?
• Coil voltage?
• Alternating (ac) or direct current (dc)?
Valve identication
missing
Identication
If the the coil label cannot be read, the valve can be identied from the letter/
number combination stamped in the valve body.
Example:
506U4042
A - Valve
Compact
Week 50 2006 042U4042
5
IC.PS.600.A4.02 / 520B2809
© Danfoss A/S (IA-MC/mhe) 05-2007 / 520B2809IC.PS.600.A4.02 / 520B2809
Installation
Flow direction
Water hammer is a typical result of high liquid
velocity (high pressure and high ow velocity
through small pipe diameters).
There are several reasonable solutions to the
problem:
A: Reduce the pressure by installing a pressure
reduction valve ahead of the solenoid valve. If pos-
sible, increase the pipe diameter.
B: Damp the water hammer by installing a exible
hose or exible buer ahead of the solenoid valve.
C: Use a solenoid valve of the type EV220B 15-50.
The equalising orice can be replaced by a version
with smaller diameter. This gives a longer closing
time (see“Spare parts”and“Opening and closing
times”).
Water hammer
To be able to operate correctly, all solenoid valves
must be installed with the arrow cast on the body
pointing in the direction of ow.
Equalising orice
6IC.PS.600.A4.02 / 520B2809
IC.PS.600.A4.02 / 520B2809
Installation
Test pressure
Tightening up
Pipe The pipes on both sides of the valve must be
securely fastened.
When applying test pressure: All valves in the
system must be open. There are three ways of
doing this:
1. By applying voltage to the coil
2. By opening the valves manually(when the
manual override accessory is tted)
3. By connecting the Danfoss permanent mag-
net (see Tools, page 40)
Note that the manual opening unit is not supplied
as standard, but as an accessory for EV220B 15-50
valves (see page 31).
Remember to screw the opening unit back
(CLOCKWISE) before starting up the system, other-
wise the valve cannot close.
Always use counter-force when tightening up pipe
connections, i.e. use a spanner on both the valve
body as well as on the pipe connector (as shown).
7
IC.PS.600.A4.02 / 520B2809
© Danfoss A/S (IA-MC/mhe) 05-2007 / 520B2809IC.PS.600.A4.02 / 520B2809
Installation
Always ush out piping before installing a solenoid
valve. If there is dirt in the medium, a lter should
be installed ahead of the valve.
Dirt in the system
8IC.PS.600.A4.02 / 520B2809
IC.PS.600.A4.02 / 520B2809
Installation
Servo-operated and
assisted lift
servo-operated valves
Installing the coil Danfoss recommends that the solenoid valve be in-
stalled with coil upwards. This minimises the risk of dirt
collecting in the armature tube.
If “clean”media is used, i.e. media containing no dirtpar-
ticles, the solenoid valve will operate when installed in
the orientation as shown below.
Este manual sirve para los siguientes modelos
7
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