Solenoid Valve Applications: Compressed Air
Solenoid valves have a wide variety of uses.
The amount of solenoid valve variants means that they can cover nearly any type of application for fluid or material.
In this blog we will be discussing some of the applications that a solenoid valve could fit in compressed air applications.
Solenoid valves in air compressors
The way the solenoid valve will work in the compressor is as follows:
When the system is operating, the electric motor runs the compressor, which takes in filtered air, compresses it, sends it to the refrigerator and finally to the tank. During this stage the solenoid valve is energized and closes the circuit keeping it under pressure. When the tank reaches the requested pressure reading, a pressure switch stops the motor and the check valve keeps air inside the tank. To prevent the compressor from remaining under pressure for too long and so getting damaged, the solenoid valve is then de-energized and it allows exceeding air still in the circuit to be exhausted.
There are three variants of solenoid valves that would be used in this application, the RD236, the RB214 and the RB203.
The RD236 and RB214 are direct acting solenoid valves whilst the RB203 is a pilot operated solenoid valve.
Here is a PDF file with a bit more detail about solenoid valves in this application:
Solenoid Valves In Air Compressors
Solenoid valves in metering valves
The system operates as follows: first corn is ground and flour is stocked into the silos. The flour is then taken from the silos to be put into a tank and mixed with water. The mixture thus obtained is distributed to the network by a pump. The MV intercepts the feedstuff and regulates its distribution to the manger thanks to the elastic diaphragm. The diaphragm is operated by the pressure of air let into the upper chamber of the solenoid valve. As a matter of fact, when the solenoid valve (assembled on the cover of the MV) is de-energised, air flows from P to B, pressing the diaphragm and closing the MV; when it is energised air from the chamber is exhausted from B to R and the MV opens
The variant of solenoid valve that would be used in this applications is:
Here is a PDF file with a bit more detail about solenoid valves in this application:
Here is a PDF file with a bit more detail about solenoid valves in this application:
The amount of solenoid valve variants means that they can cover nearly any type of application for fluid or material.
In this blog we will be discussing some of the applications that a solenoid valve could fit in compressed air applications.
Solenoid valves in air compressors
The way the solenoid valve will work in the compressor is as follows:
When the system is operating, the electric motor runs the compressor, which takes in filtered air, compresses it, sends it to the refrigerator and finally to the tank. During this stage the solenoid valve is energized and closes the circuit keeping it under pressure. When the tank reaches the requested pressure reading, a pressure switch stops the motor and the check valve keeps air inside the tank. To prevent the compressor from remaining under pressure for too long and so getting damaged, the solenoid valve is then de-energized and it allows exceeding air still in the circuit to be exhausted.
There are three variants of solenoid valves that would be used in this application, the RD236, the RB214 and the RB203.
The RD236 and RB214 are direct acting solenoid valves whilst the RB203 is a pilot operated solenoid valve.
Here is a PDF file with a bit more detail about solenoid valves in this application:
Solenoid Valves In Air Compressors
Solenoid valves in metering valves
The system operates as follows: first corn is ground and flour is stocked into the silos. The flour is then taken from the silos to be put into a tank and mixed with water. The mixture thus obtained is distributed to the network by a pump. The MV intercepts the feedstuff and regulates its distribution to the manger thanks to the elastic diaphragm. The diaphragm is operated by the pressure of air let into the upper chamber of the solenoid valve. As a matter of fact, when the solenoid valve (assembled on the cover of the MV) is de-energised, air flows from P to B, pressing the diaphragm and closing the MV; when it is energised air from the chamber is exhausted from B to R and the MV opens
The variant of solenoid valve that would be used in this applications is:
Here is a PDF file with a bit more detail about solenoid valves in this application:
Solenoid valves in press safety valves
Two 3-way solenoid valves are used in this application.
When they are de-energized (Picture 1), they close the
inlet of pressurized air from P (red) and connect outlet
A to the exhausts R. The value of pressure inside the
pipes is controlled by pressure gauges CP. The two
solenoid valves are operated at the same time by an
electronic panel (Picture 2). They close their own
exhausts allowing air to flow through the pipes to the
piston chambers, which are pushed downwards by
pressure. At this time air can flow from P to A. If a
failure was simulated, for example by de-energizing
only the valve on the right, the piston on the left would
be pushed upwards by the spring because of a lack of
pressure and would open the exhaust. Air (yellow) from
P would flow towards R thus blocking the valve, which
would operate again only when the system was safe.
The valve would reset automatically when the stand-by
position was restored.
The variant of solenoid valve that would be used in this application is:
Here is a PDF file with a bit more detail about solenoid valves in this application:
solenoid valves in vibrating feeders
A circular vibrator consists of a vibrating base, a container
and a separate electronic controller for setting the
excursion of the vibration. Containers can be of various
shapes: cylindrical, conical, or stepped; they have a spiral
guider in the internal wall that allows small parts to ascend
to the linear feeder. A magnet operates a pulsating force on
the container and the vibrations thus produced move the
small parts forwards along a track inside the container. A
series of traps at the end of the track select parts in a wrong
position and let them fall at the centre of the container, so
that only properly positioned parts are ejected. A solenoid
valve intercepts compressed air from the system and shoots
it against the small parts to push them into the assembly
machine. A photocell is positioned at the mouth of the
feeder. When the container is empty, the system detects a
failure, the vibrator stops, a warning light turns on and the
de-energized solenoid valve interrupts the blast of air. Only
the intervention of an operator can reset the process. The
most frequent failures are due to not properly positioned
parts getting stuck or to the container being empty.
The type of solenoid valve that would be used in this application is:
Here is a PDF file with a bit more detail about solenoid valves in this application:
You can use the M&M range of valves that V-Flow Solutions can offer here:
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