[PSUBS-MAILIST] Alec's new valves

Sun Oct 28 17:14:29 EDT 2018

 Alan,I am making solenoid vent valves and immersing the entire valve in oil with a compensation bladder.  I used them on my salvage ROV that did thousands of cycles without anything done to them.  I need two on Gamma and two on E3000Hank
    On Sunday, October 28, 2018, 1:57:10 PM MDT, Alan via Personal_Submersibles <personal_submersibles at psubs.org> wrote:  

 Hank,I would need to put a seal on the plunger & as the plunger goesin & out it would be displacing oil, so have the same problems as withlinear actuators. As the plunger has to be a material that can bemagnetised it is vulnerable to corrosion, so I will have to coat it inresin anyway. It is just a matter of putting the plunger on the lathe& taking off enough metal to make room for the resin. I made a solenoid valve years ago. It was 60W & got hot really fast.I have ordered a 48V & 24V solenoid mainly to see how hot theyget, how strong they are, what gauge wire they are using & how manyturns. If neither is suitable at least I will get some ideas for building one.I have been inspired by those little open waterproofed motors I bought.What were you going to use the solenoids for? If you want I will keepyou up to date with what I am doing, but the solenoids will take about2 weeks to get here.Alan

On 29/10/2018, at 8:29 AM, hank pronk via Personal_Submersibles <personal_submersibles at psubs.org> wrote:

 Alan,Why don't you just make a housing for the solenoids and oil fill.  That is one of my first projects when I get back to the sub.Hank
    On Sunday, October 28, 2018, 12:46:29 PM MDT, Alan via Personal_Submersibles <personal_submersibles at psubs.org> wrote:  

 Hank,yes just making fun of you! It's an old English saying! Thanks Alec, I see I have already "liked" them. Nice piece of work.You guys got me inspired & I ordered a couple of solenoids to modify Vance'smushroom valve design & make it electric. I will have to waterproof the solenoids,which will involve machining the plunger so I can coat it & it's iron tubereceptacle with resin.The force varies depending on how far out the plunger is & on one Iordered it varied between 1 & 10kg; unfortunately I'll get a reduction in forceafter coating everything with resin. I am not sure how much spring force I should need to close it yet.Alan

On 29/10/2018, at 6:49 AM, hank pronk via Personal_Submersibles <personal_submersibles at psubs.org> wrote:

 Have you guys never heard the saying "on pins and needles"  or are you just making fun of me Hank
    On Sunday, October 28, 2018, 8:33:01 AM MDT, Alec Smyth via Personal_Submersibles <personal_submersibles at psubs.org> wrote:  

 Yeah, I'm not sure what Hank was talking about concerning piss and needles, it doesn't sound good at all. But Alan, scroll down on this page and you'll see the valves...
https://www.facebook.com/pg/INNERSPACESCIENCE/posts/

On Sat, Oct 27, 2018 at 10:29 PM Alan via Personal_Submersibles <personal_submersibles at psubs.org> wrote:

Hank,glad you clarified that, it read like you were an alcoholic & junky.What valves were they? I haven't received any posts lately &were wondering if I had missed some.Alan  
On 28/10/2018, at 1:20 PM, hank pronk via Personal_Submersibles <personal_submersibles at psubs.org> wrote:

 Pins

    On Saturday, October 27, 2018, 6:19:32 PM MDT, hank pronk via Personal_Submersibles <personal_submersibles at psubs.org> wrote:  

 Alec,I am on pis and needles waiting to hear about your new valves and how they perform.  Have you tested them?Hank_______________________________________________
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