Cooling Machine Replacement BB230AS 018F7351 Refrigeration Coil
What is a solenoid valve coil?
The purpose of a solenoid valve coil is to convert electrical
energy into linear motion. The coil consists of copper wire (or
aluminum) wound around a hollow form. When electric current flows
through the coil, a magnetic field is created. This is accomplished
by placing a ferromagnetic core inside the coil. In a solenoid
valve, the ferromagnetic core is called the valve plunger. When the
current flows through the coil, the lines of magnetic flux turn the
plunger into an electromagnet. The magnetic field causes the
plunger to slide further up into the coil, opening the valve body
orifice or pilot orifice.
Technical parameter of 15mm wire lead type refrigeration coil:
| Model Numbers | BB15045010 | BB15058555 | BB15045054 |
| Normal voltage | AC220V/DC24V |
| Normal power | AC:11VA DC10W | AC:18VA DC19W | AC:25VA DC16W |
| Insulation class | H, F | H |
| Connection type | DIN43650 |
| Application | EVR series refrigeration solenoid valve |
| Weight | 314 g | 310 g | 487.5 g |
Main dimension of EVR series refrigeration solenoid valve coils
flying leads:
Winding Machine of AC220V/DC24V EVR series electric solenoid valve
coils:
Refrigeration solenoid valve with electromagnetic coils testing
machine:
Daily solenoid valve with coils problem solving of low temperature
chiller:
The solenoid valve used in the low temperature chiller is composed
of a solenoid coil and a magnetic core, and is a valve body
including one or several holes. When the coil is energized or
de-energized, the operation of the core will cause fluid to pass
through the valve body or be severed to achieve the purpose of
changing the direction of the fluid. If the solenoid valve does not
work, it will directly affect the action of the chiller switching
valve and the regulating valve. When the low temperature chiller
solenoid valve does not work, Hailingke Xiaobian should be
investigated from the following four aspects:
1. The solenoid valve terminal is loose or the wire ends are off.
The solenoid valve is not allowed to be energized and the wire ends
can be tightened.
2, the solenoid valve is stuck: the sliding gap between the sliding
valve sleeve and the valve core of the low-temperature chiller
solenoid valve is very small, generally one-piece assembly, when
mechanical impurities are brought in or the lubricating oil is too
small, it is easy to get stuck. The treatment method can use a
steel wire to break in from the small hole of the head to make it
bounce back. The fundamental solution is to remove the solenoid
valve, take out the valve plug and the valve core sleeve and clean
it, so that the valve core can move flexibly in the valve sleeve.
When disassembling, pay attention to the assembly sequence of each
component and the external wiring position, so as to reassemble and
wire correctly, and check whether the oil mist injection hole is
blocked and the lubricating oil is sufficient.
3. Air leakage: Air leakage will cause insufficient air pressure,
which makes the forced valve open and close difficult. The reason
is that the gasket is damaged or the spool is worn out, causing
several cavity helium. When dealing with the solenoid valve failure
of the switching system, the appropriate timing should be selected,
and the solenoid valve should be processed when the power is lost.
If the processing is not completed within one switching gap, the
switching system can be suspended and taken care of.
4. The solenoid valve coil is burnt out: The wiring of the solenoid
valve can be removed and measured with a multimeter. If the circuit
is open, the solenoid valve coil is burnt out. The reason is that
the coil is damp, causing poor insulation and magnetic leakage,
causing the current in the coil to be too large and burning, so it
is necessary to prevent rainwater from entering the solenoid valve.
In addition, the spring is too hard, the reaction force is too
large, the number of coil turns is too small, and the suction force
is insufficient to cause the solenoid valve coil of the low
temperature chiller to burn. For emergency handling, the manual
button on the coil can be turned from the “0” position to the “1”
position during normal operation, causing the valve to open.
Pls contact us for more details!
