I know it's off topic a bit but this is my go to group for real answers. Ha ve any of you guys messed with inline irrigation valves? I never have and h ave a new Rainbird valve that needs 24vac so I simply connected it to a 24v ac (20va) control transformer I had and the solenoid chatters like crazy, s o quickly disconnected it. (Usually when I hear chatter it means a need for DC but these things run on AC).
Does the chatter go away with water pressure? I just bench tested it dry. T HANKS
The valve operates on delta-pressure... the control voltage only operates a AIR needle-valve which then operates the water valve. ...Jim Thompson
Have any of you guys messed with inline irrigation valves? I never have an d have a new Rainbird valve that needs 24vac so I simply connected it to a
24vac (20va) control transformer I had and the solenoid chatters like crazy , so quickly disconnected it. (Usually when I hear chatter it means a need for DC but these things run on AC).. THANKS
Thanks Jim -- so is the chatter when it's dry and not connected to water to be expected? I'll assume these need a continuous 24vac to stay open rather than a pulse? It's a Rainbird CP075
Have any of you guys messed with inline irrigation valves? I never have and have a new Rainbird valve that needs 24vac so I simply connected it to a 2
4vac (20va) control transformer I had and the solenoid chatters like crazy, so quickly disconnected it. (Usually when I hear chatter it means a need f or DC but these things run on AC).THANKS
By the way -- googled delta pressure to learn about it -- out to lunch on w hatever that is.
I don't know about the chatter... it's been years since I did it my self... my yard guy does all that now ;-) ...Jim Thompson
Here's a video that demonstrates how a Rainbird valve works...
...Jim Thompson
s. Have any of you guys messed with inline irrigation valves? I never have and have a new Rainbird valve that needs 24vac so I simply connected it to a 24vac (20va) control transformer I had and the solenoid chatters like cra zy, so quickly disconnected it. (Usually when I hear chatter it means a nee d for DC but these things run on AC).
ry. THANKS
n whatever that is.
Don't know why I didn't run into that video when i was searching -- yes, it looks like it needs water in the solenoid -- I bet it's that plunger that' s making the chatter and it's the water that keeps it quiet. Thanks.
Have any of you guys messed with inline irrigation valves? I never have and have a new Rainbird valve that needs 24vac so I simply connected it to a 2
4vac (20va) control transformer I had and the solenoid chatters like crazy, so quickly disconnected it. (Usually when I hear chatter it means a need f or DC but these things run on AC).THANKS
Stuff like that used to be all 240v, no transformer.
NT
Where? That certainly wouldn't meet US safety codes. ...Jim Thompson
s. Have any of you guys messed with inline irrigation valves? I never have and have a new Rainbird valve that needs 24vac so I simply connected it to a 24vac (20va) control transformer I had and the solenoid chatters like cra zy, so quickly disconnected it. (Usually when I hear chatter it means a nee d for DC but these things run on AC).
ry. THANKS
No, of course. There was also no rcd/gfci and no equipotential bonding. Her e in UK in the 70s. The water spray was all over the (insulated) mains flex feeding it.
NT
Good info!
Ed
Yep. I haven't repaired one myself in a while, but I did remember that differential pressure game... uses the water pressure as the source of force to operate the valve... thus the 28VAC power required from the controller is negligible. ...Jim Thompson
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