Hey guys....I have a 2 wire ball valve and I'm just curious if it can be used with a wireless remote control. I'm not knowledgeable on circuit boards or electronics so have no idea. I haven't even tried it yet but kind seems like it would only be able to be used with a dpdt switch. I guess I'm just wondering if the circuit board is made to where it can do the switching itself. This ball valve does not have auto return so the schematic calls it "2 wires reverse polarity".

Here's a picture of the circuit board. The only thing you don't see are two micro switches. One on either side of a gear that gets
pushed when it reaches the open position and the other when it reaches the closed position. The second is the wiring schematics which doesn't help me at all.

Thanks you for your time and knowledge!

 

Might use an H bridge to supply power with logic level signals for control. A toggle flip flop, FF could supply direction from a single contact closure; one pulse, valve open, second closure valve closes.
Seems like a lot of parts on CB if it is just open or closed. A linear actuator does the same thing with two diodes ??

 

I would, as suggested, use an H-Bridge. Valves like this generally require a low current. All that is happening is the polarity is reversed and when the valve reaches full travel, open or close, the micro switches remove power. It likely can be operated remotely wired or wireless. The linked H-Bridge is merely an example of a pre fabricated board which can be used to reverse polarity in the same manner as the switch diagram you posted. As to wireless remote it would be a matter of distance but two channel relay boards are also plentiful which operate similar to the key fob for remote entry to a vehicle. Pretty much a matter of exactly what you want to do?

Ron

 

Judging by the complexity of the pcb in post #1 I'm guessing it's a controller for a proportional valve; not just a simple on/off valve. There seem to be six FETs on the pcb, so four of those might form an H-bridge for directional control. There also seem to be a bunch of components typically found in a switch-mode device, so they could be a PWM arrangement. Without a schematic of the board it's difficult to determine how you could interface it with a remote control receiver.

 

Judging by the complexity of the pcb in post #1 I'm guessing it's a controller for a proportional valve; not just a simple on/off valve. There seem to be six FETs on the pcb, so four of those might form an H-bridge for directional control. There also seem to be a bunch of components typically found in a switch-mode device, so they could be a PWM arrangement. Without a schematic of the board it's difficult to determine how you could interface it with a remote control receiver.

I thought about that. Reading the part of the data sheet attached I sort of discounted that. Looks like it just opens and closes and uses limit switches on either end. That however does not explain all the board components? Beats me.

Ron

 

Reading the part of the data sheet attached I sort of discounted that.

The datasheet apparently shows various ways of connecting/using the valve and perhaps the section posted shows just the simplest. It would be helpful to see the full datasheet.
Is the post #1 controller an OEM optional extra or a third-party add-on?

 

The datasheet apparently shows various ways of connecting/using the valve and perhaps the section posted shows just the simplest. It would be helpful to see the full datasheet.
Is the post #1 controller an OEM optional extra or a third-party add-on?

U.S. Solid makes a wide range of ball valves. That includes several two wire versions. They also mention the following:

There are a wide variety of possible applications for motorized ball valves. They can be used in different home automation tasks. This brass model is an excellent choice for use in irrigation or for hydroponic systems. As a bonus, this valve can be opened or closed only partially, using an Arduino or other control system. This is a great alternative when flow needs restricted but not completely shutoff.

Knowing exactly which model and seeing a full data sheet would help. I will say their 1/2 inch US valves are really reasonably priced. I just did not see actual data sheets for the valves I looked at.

Ron