Basic Hunter Valve Operation. Water enters the valve from the system main line and exerts a force against the center of the valve’s diaphragm. A small orifice in the diaphragm allows the water to flow through to the upper chamber between the diaphragm and the bonnet. The water continues to travel on through a port in the bonnet to the solenoid area.
How do you adjust a hunter valve?
1:363:48Hunter Spray Adjustments and Maintenance - YouTubeYouTubeStart of suggested clipEnd of suggested clipTurn the screw clockwise. If. You need to reach a little farther. Turn it the opposite direction orMoreTurn the screw clockwise. If. You need to reach a little farther. Turn it the opposite direction or counterclockwise.
How does a hunter PGV work?
With the PGV, when a surge pressure spike hits the closed valve, the solenoid plunger will open slightly to allow the spike to travel downstream and dissipate through the zone piping, minimizing any damage that could occur. The solenoid plunger then closes immediately, preventing unscheduled system operation.
How do you manually close a hunter sprinkler valve?
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). Hand tighten the screw to shut the valve off.
How does a irrigation valve work?
1:252:16How Do Sprinkler Valves Work? Rain Bird Irrigation - YouTubeYouTubeStart of suggested clipEnd of suggested clipAllows the high inlet water pressure to push the diaphragm. Up which allows water to flow throughMoreAllows the high inlet water pressure to push the diaphragm. Up which allows water to flow through the valve. Once the flow of electricity to the solenoid stops the plunger drops inside the solenoid.
Why is my hunter sprinkler valve leaking?
Why does my valve leak water when shut off? It is possible that you have debris in the valve, which is causing it to remain open. To fix this, you'll need to disassemble the valve, rinse all the parts with clean water, and re-assemble the valve.
How do you adjust the flow control on a sprinkler valve?
0:261:00Rain Bird Valves: Adjusting the Flow Control - YouTubeYouTubeStart of suggested clipEnd of suggested clipIn an emergency. You can turn off the sprinklers from any particular valve by turning the valve'sMoreIn an emergency. You can turn off the sprinklers from any particular valve by turning the valve's flow control stem clockwise until it's hand tight.
What causes a sprinkler valve to stay open?
The most common reason for a valve to remain on, or weep, is debris. New installations without proper flushing, recent mainline repair, or well water can cause debris to flow into the valve and get caught between the diaphragm and the seat.
What causes a sprinkler valve to not turn on?
There are several reasons why your sprinkler valve might not be opening properly. Perhaps the sprinkler head is dirty, or maybe it has been broken entirely. You may also have a damaged door leaking pipe somewhere, and there could be an issue with the voltage system or the backflow device valve.
Why is my sprinkler valve not shutting off?
One of the most common reasons why sprinkler systems get stuck on is when dirt or debris gets stuck in the irrigation valve. Luckily, this is an easy repair. All you need to do is flush the dirt out of the valve, and it should begin functioning properly once again.
How do you test a hunter sprinkler solenoid?
1:484:44Sprinkler System Solenoid Troubleshooting - YouTubeYouTubeStart of suggested clipEnd of suggested clipAnd you can hold this it's not going to shock you or anything. Hold one on your red. Lead. And oneMoreAnd you can hold this it's not going to shock you or anything. Hold one on your red. Lead. And one on your black lead it doesn't matter which wire goes to red or black. And you see that.
How do you clean a hunter sprinkler valve?
0:132:37Cleaning the Diaphragm on a Hunter Valve - Quick Tip - YouTubeYouTubeStart of suggested clipEnd of suggested clipBefore cleaning your valve it is extremely important to understand that you need to turn your mainMoreBefore cleaning your valve it is extremely important to understand that you need to turn your main water supply. Off simply turn your ball valve or whatever main shutoff you have to your irrigation.
How do I know if my sprinkler valves are open?
Turning it to the left lifts an internal gate that releases water incrementally as it turns. The gate lifts entirely when the handle is turned fully counterclockwise. If the handle will turn no farther counterclockwise, the valve is open.
How do you manually turn off a solenoid valve?
0:271:00Manual operation of Rain Bird valves - YouTubeYouTubeStart of suggested clipEnd of suggested clipTo close the valve turn the solenoid in the off or clockwise direction until resistance is felt doMoreTo close the valve turn the solenoid in the off or clockwise direction until resistance is felt do not overtighten.
How do I turn on my sprinkler system manually?
0:415:19How to Turn on Sprinklers Manually + Business Talk - YouTubeYouTubeStart of suggested clipEnd of suggested clipOpen this up. And these are all manual valves down inside here you see this little tiny square.MoreOpen this up. And these are all manual valves down inside here you see this little tiny square. Spigot if you turn that counterclockwise. A quarter of a. Turn.
How do you manually override a solenoid valve?
Rotate 90° clockwise to engage detent. Operation of Manual Override: Rotate knob counterclockwise to activate override function. Operation of Manual Override: Pull and hold to override. Operation of Manual Override: Rotate knob counterclockwise to activate override function.
Are sprinkler valves normally closed?
For electronic solenoid valves – the most common type used in sprinkler systems these days – the nature of the valve means they're 'normally closed'.
Where does water enter a valve?
Water enters the valve from the system main line and exerts a force against the center of the valve’s diaphragm. A small orifice in the diaphragm allows the water to flow through to the upper chamber between the diaphragm and the bonnet.
What is the solenoid in a valve?
The solenoid has a light spring loaded metal piston that , when the valve is closed, covers the inlet port hole. The surface area that the water comes in contact with on top of the diaphragm is greater than the surface area on the bottom of the diaphragm, so the valve stays closed until the water in the upper chamber is released.
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How to shut off a valve?
To shut off the valve, twist the solenoid clockwise until it is snug on the valve. If playback doesn't begin shortly, try restarting your device.
How to fix a valve that is still open?
To fix this, you'll need to disassemble the valve, rinse all the parts with clean water, and re-assemble the valve. If you cannot locate your valve boxes or fix the valve, it is recommended you contact the contractor who installed the system, or use our Professional Contractor Referral page to help find a professional contractor in your area.
How to clean a diaphragm?
The diaphragm should be clean and free of wrinkles, tears, or perforations. The seal should be clean and free of nicks, dents or abrasions. Wash the diaphragm with clean fresh water to remove any debris that may have been deposited there.
Where is the solenoid located on a valve?
The solenoid is located on the top of the valve and looks like a cylinder with two wires coming out of it. It is possible that you have debris in the valve, which is causing them to remain open. To fix this, you'll need to disassemble the valve, rinse all the parts with clean water and re-assemble the valve.
How to remove blockage in valve body?
All ports should be clear and pass water freely. A small piece of flexible wire can be passed through the ports to remove blockage.
What to do if playback doesn't begin?
If playback doesn't begin shortly, try restarting your device.
Is it dangerous to open a valve under pressure?
Opening a valve under pressure is dangerous and you could be injured. Unscrew the solenoid (cylinder with two wires) and make sure the plunger is clean and moves freely. You can test the solenoid by running that station manually from the controller and see if the plunger retracts when energized.
