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24v converter for ball valve

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  • 24v converter for ball valve

    Guys, I have 5 Johnson Controls A421 and 5 110v solenoid valves. One of those valves blew today and I'm thinking of replacing the solenoids with ball valves. I'm not finding too many AC powered ball valves. Most seem to be 24v. I'm wondering what kind of power converter is necessary for these valves. Is it as simple as buying something like this and plugging it into my JC A421? https://www.parts-express.com/Search...itesearch=true

  • #2
    Don't do it!

    If you're going to replace solenoids with something more robust, then I suggest air-operated angle seat valves. Good ones are around $100 or so. They are bulletproof and highly reliable. A few features to look for are: brightly colored indicator showing valve open; LED showing solenoid on; manual bypass button on solenoid. I'll never install anything else again.
    Phillip Kelm--Palau Brewing Company Manager--

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    • #3
      Originally posted by gitchegumee View Post
      If you're going to replace solenoids with something more robust, then I suggest air-operated angle seat valves. Good ones are around $100 or so. They are bulletproof and highly reliable. A few features to look for are: brightly colored indicator showing valve open; LED showing solenoid on; manual bypass button on solenoid. I'll never install anything else again.
      Phillip,
      Do you have source for these?

      Prost!
      Dave
      Glacier Brewing Company
      406-883-2595
      info@glacierbrewing.com

      "who said what now?"

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      • #4
        I would agree with the points made by Philip. Pneumatic actuated angle seats are the bees knees. I like the 2000 series valves by Burkert myself. However, I have had an actuator spring break on one before (probably a manufacturing defect), so I wouldnÂ’t say quite bullet proof, but probably the most robust you can get for long term industrial applications. And they are great for washdown areas.

        If OP is looking for actuated ball valves that run off 24V or 110V Belimo makes a great option. They indicate valve position, offer full flow, and can be manually operated if needed. One advantage to motorized ball valves is the reduced likelihood of water hammer due to slow closing. Another is that you can set a limit for how far the valve opens if you want a partial restriction.

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        • #5
          Thanks guys.

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          • #6
            Choices

            For sure this choice Phillip has mentioned is an industrial strength solution.
            This does make for a more complex system, component wise.
            I have a 24VAC solenoid soultion that never fails and costs about USD$ 20.00 each.
            I see 120V Coils in a plant washdown setting as a bad idea. There is really no good reason to go above 24V in this application.
            Last edited by Starcat; 01-26-2020, 09:35 AM.
            Warren Turner
            Industrial Engineering Technician
            HVACR-Electrical Systems Specialist
            Moab Brewery
            The Thought Police are Attempting to Suppress Free Speech and Sugar coat everything. This is both Cowardice and Treason given to their own kind.

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            • #7
              Angle seat valves

              Are a bit more complicated, I'll give you that. Besides the main angle valve body, they have a pneumatic solenoid pilot. But the failure rate of a small, pneumatic solenoid using dry, clean plant air is minuscule compared to larger glycol solenoids. We use a small, inexpensive pneumatic throttle valve on the actuator outlet to slow down the action. That also further complicates the assembly, but again the failure rate of these items is far below that of a similar-sized glycol solenoid. Most folks will want to select a single-action, spring to close valve. Troubleshooting them is made super-simple if you have an indicator cap on the actuator to let you know when it's open; an LED on the solenoid that shows when it's actuated; and a manual bypass button on the solenoid to check air flow. Sorry that I don't have a source for any particular brand in US. Only used these elsewhere. And as Starcat points out: never use 110vac for control!
              Phillip Kelm--Palau Brewing Company Manager--

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