ASCO air purge solenoid:
- Remove the red cap [1].
- Push the solenoid coil assembly [2] down to compress the spring inside.
- Remove the specification plate [3] by sliding off.
- Remove the split spring [4] and valve subassembly [5] from the coil assembly [2].
- Disassemble the valve subassembly [5].
- Clean the parts with compressed air. ...
- Apply a thin coat of silicone grease to the body gasket [6].
How do ASCO solenoid valves work?
How ASCO solenoid valves work. As the majority of flow control valves are either fully open or closed, they operate on an on/off basis. However, the function of an ASCO solenoid valve may vary depending on the type of valve in operation. Below, we outline the function of ASCO solenoid valves available from MGA Controls.
What are ASCO 210 series solenoid valves?
The Asco 210 Series Solenoid Valves are a general purpose, 2/2-way solenoid valve with forced lift. This allows them to operate without the need for differential pressure. They are available in sizes ranging from 3/8” up to 1.1/2” in brass or stainless steel bodies, and with a variety of seal materials to suit almost any industrial application.
What is a normally closed solenoid valve?
A solenoid valve comprises of two main parts, the solenoid and the valve body. In a Normally Closed valve, the core of the energised solenoid directly opens the orifice, while the orifice in a Normally Open valve closes when the solenoid is energised. Once the valve is de-energised, the valve returns to the original position.
How do you fix a bad solenoid valve?
Solenoid Valve Troubleshooting Make sure the machine receives the correct air pressure and flow. Make sure the shut off valve is completely open. Many solenoids will not shift correctly without correct air pressure and back pressure.
How do you remove a valve solenoid?
0:211:26Replacing the Solenoid: Rain Bird Residential Valve TroubleshootingYouTubeStart of suggested clipEnd of suggested clipFirst shut off the main water supply to your irrigation. System disconnect the wires to the solenoidMoreFirst shut off the main water supply to your irrigation. System disconnect the wires to the solenoid. By cutting them or by unscrewing the wire nuts. Turn the solenoid counter clockwise to remove.
How do you manually open an ASCO solenoid valve?
To engage manual operator (open the valve), push in knurled cap and rotate stem clockwise 180_. Valve will now be in the same position as when the solenoid is energized. To disengage manual operator (close the valve), turn stem counterclockwise 180_.
How do you tell if an ASCO valve is normally open or closed?
Normally closed valves are closed when the valve is de-energized and open when the proper voltage is applied to the coil. Normally open valves are open when de- energized and close when the coil is energized. Pressure ratings should be as close as practicable to system pressure.
How do you test an ASCO solenoid?
0:251:39How To Troubleshoot an ASCO Solenoid Valve - YouTubeYouTubeStart of suggested clipEnd of suggested clipAnd ask the solenoid valve coil. The first thing we need to do is check what the voltage is here onMoreAnd ask the solenoid valve coil. The first thing we need to do is check what the voltage is here on the coil it describes 120 volts ac we're going to test the voltage to make sure it operates.
What are the 3 wires on solenoid valve?
The XR33 actuator that controls the valves position is configured with 3 separate wires. The black or neutral wire is connected to the ground. The red or positive wire is connected to the power. The green wire is the control wire that will change the position when power is applied or removed.
How do I know which ASCO valve I have?
0:241:36How To Identify an ASCO Solenoid Valve - YouTubeYouTubeStart of suggested clipEnd of suggested clipThe information needed to identify. And ask the solenoid valve is located in two places theMoreThe information needed to identify. And ask the solenoid valve is located in two places the nameplate.
How do you open a solenoid?
One way is to simply turn the solenoid (the black cylinder with 2 wires) counter-clockwise a 1/4 to 1/2 turn. To shut off the valve, twist the solenoid clockwise until it is snug on the valve. The other way is to use the bleed screw the same way, loosen the screw enough to release air (1/4 to 1/2 turn).
How does an ASCO solenoid valve work?
ASCO valves have a solenoid mounted directly on the valve body. The core is enclosed in a sealed tube, providing a compact, leaktight assembly. When the solenoid is energized in a direct acting valve, the core directly opens the orifice of a Normally Closed valve or closes the orifice of a Normally Open valve.
How do you fix a buzzing solenoid?
Sometimes there is just a loose or incomplete wire splice or connection causing the buzzing. Turn on the valve using the controller. Go to the buzzing valve and check the wire connections. If they have the twist or screw-on type wire connectors, try tightening them by turning the connector clockwise.
How do you know if sprinkler solenoid is bad?
Signs You Have a ProblemThe Water Won't Shut Off. If you have this problem, it's very likely the solenoid. ... Low or Uneven Water Pressure. The solenoid controls the water pressure. ... Water Leaks. There are many points in a sprinkler system that can leak. ... Current Testing. ... Valve Inspection. ... Parts Replacement.
How do you check if a solenoid is working?
How to Test a Solenoid Coil?Set your multimeter on ohms. If the multimeter is not automatic, set it on 2k ohms. ... Place the probes of multimeter across the pins of a solenoid coil. If you find 3 pins there, one of them is a flat pin which is connected to the ground. ... Read the number on the multimeter.
What causes a solenoid to chatter?
When solenoid valves open and close, they may produce a clicking noise. The noise may come from the valve itself, or it may come from supporting circuitry, usually a relay that supplies current to the valve. In most cases, these clicks are considered normal operating noise and may be difficult to prevent.
Can you bypass a solenoid valve?
4:387:29Solenoid Bypass - YouTubeYouTubeStart of suggested clipEnd of suggested clipAll you have to do to bypass the solenoid. And make the starter turn is basically connect this hardMoreAll you have to do to bypass the solenoid. And make the starter turn is basically connect this hard copper wire to this point on the battery. Then you're not doing anything with the solenoid.
What is manual reset in solenoid valve?
Manual Reset Solenoid Valves There are occasions where safety requires that a valve cannot be remotely operated by a control system without an additional human input directly at the valve. This is what is known as Manual Reset.
How do you bypass a hydraulic solenoid?
0:371:48Manually Bypassing Dump Valve Solenoids - YouTubeYouTubeStart of suggested clipEnd of suggested clipLoosen the jam nut all the way. This is a little brass. Center screw so if it's dirty cleaner up andMoreLoosen the jam nut all the way. This is a little brass. Center screw so if it's dirty cleaner up and go gentle with it it strips.
How does an ASCO solenoid valve work?
ASCO valves have a solenoid mounted directly on the valve body. The core is enclosed in a sealed tube, providing a compact, leaktight assembly. When the solenoid is energized in a direct acting valve, the core directly opens the orifice of a Normally Closed valve or closes the orifice of a Normally Open valve.
What to do if solenoid doesn't work?
If the solenoid still does not operate correctly, disconnect the solenoid from the machine and connect it to a known electrical source. If the solenoid operates correctly, the machine has an electrical problem. Do not replace the solenoid.
How to check if solenoid is working?
If the solenoid leaks after you tested it for correct air and power, manually activate it with a 2 mm allen key. Cycle the valve to release any contamiation or debris that may have been stuck in the valve. If the solenoid still does not operate correctly, remove the solenoid and inspect the ports for contamination or debris. Clean the solenoid with compressed air while cycling it. Some solenoids (i.e. Asco) have the capability to be disassembled in the field. See the Cleaning ASCO, SMC or FESTO Brand Solenoids section in this document. Replace the solenoid if the ports are covered in contamination or debris that cannot be removed.
What is the purpose of a 2 port solenoid valve?
ASCO or SMC brand 2-Port solenoid valves are most commonly used for the air system purge. These solenoids are also used in the Coolant Refill and TAB options. Note: MAC 3-Port poppet style solenoid valves are also used for the air system purge.
Why does my air purge solenoid leak air?
If these solenoids leak air when the solenoid is not activated, it is likely that debris holds the plunger in an open position. Follow this procedures to clean the 2-Port air purge solenoid valve:
How to move a solenoid out of intermediate state?
To move the solenoid out of the intermediate state, close the air valve and power off the machine. Note: Do not use the machine before the air supply to the machine is correct. Turn on the machine and use the control to activate the solenoid.
How to clean a valve poppet?
Use the compressed air to clean the valve body [7] valve poppet and the spring.
How to clean a valve?
Clean the parts with compressed air. Be sure to remove all debris from inside the valve.
Who is the supplier of ASCO solenoid valves?
MGA Controls are leading suppliers of ASCO solenoid valves. If you require more information about the ASCO solenoid valve function or our complete range of ASCO solenoid valves, or would like a quote, please contact us today on 01704 898980 or email [email protected].
What is an ASCO 210?
The Asco 210 Series Solenoid Valves are a general purpose, 2/2-way solenoid valve with forced lift. This allows them to operate without the need for differential pressure. They are available in sizes ranging from 3/8” up to 1.1/2” in brass or stainless steel bodies, and with a variety of seal materials to suit almost any industrial application.
Who makes solenoid valves?
ASCO are leading manufacturers of solenoid valves. In our latest article, MGA Controls discusses the ASCO solenoid valve function.
What is a two way valve?
A two-way valve features an inlet and outlet pipe connection. The ports are used to either allow or shut-off a fluid flow throughout a machine. A Normally Closed two-way valve will open when the coil is energised, while a Normally Open two-way valve will close when energised.
Direct-acting valve doesn't operate when the valve circuit is energized
Low voltage or no voltage to solenoid might be caused for this problem. So, you need to check the voltage at the coil. For most of them, the voltage must be of at least 85% on nameplate rating.
Pilot operating valve doesn't work when the valve circuit is energized
For this problem, first, you need to verify the possible causes and solutions that are related to the direct-acting valve. Once they have completed, but it still is not operating, follow the below:
Direct-acting valve will not close or shift when the valve circuit is de-energized
Coil not de-energized - For this, you should examine the electrical control circuit. If there are any electrical problems, repair yourself or with the help of an electrician.
Wire drawing
Dirt or foreign matter is lodged on a seat - You need to replace the valve body or install a new valve. Also, install a suitable strainer close to the inlet or valve.
Coil failure
Overvoltage - Verify the voltage of the coil. This voltage should be as indicated in the nameplate rating.
Final Thoughts:-
A faulty ASCO solenoid valve can't operate according to the requirements. So, refer to the above guide to know how do you check a solenoid valve? and fix the issues immediately. PartsAPS is one of the ASCO solenoid valve distributors. If you are having any trouble with the valves, you can visit our website and buy a new ASCO solenoid valve.
About the Author
Haritha is a Content Writer at PartsAPS. She has a great understanding of today's marketing strategies that yield strong results and always happy to create valuable content & share her thoughts.