[PSUBS-MAILIST] solenoid valves

[hank pronk via Personal_Submersibles]

 Alec,The pneumatic valves are on E3000, so your memory is intact.  ;-)   I am experimenting with the solenoids mostly and you were correct about an air lock in the lines.  Now I have to decide if I want to enclose the electric valves or put pneumatic valves in.  Turns out I only need two.  The thing I don't like about the pneumatic valves is all the darn plumbing and regulating and valving.  Electric is so simple once a nice oil filled housing is built.Hank
    On Monday, April 15, 2019, 7:39:34 PM MDT, Alec Smyth via Personal_Submersibles <personal_submersibles at psubs.org> wrote:  
 
 Hi Hank,
Great the new valves work so well. I recall you posting photos of a new valve during the winter, but unless my memory is playing tricks on me (which it does) I recall a small pneumatic ram, not a solenoid. Did you change that or am I wrong?
Best,
Alec 
On Mon, Apr 15, 2019 at 4:36 PM hank pronk via Personal_Submersibles <personal_submersibles at psubs.org> wrote:

Hi All,When we were in Lake Tahoe, Alec asked if I get an air lock in my MBT vent lines.  I said no, but that got me thinking, and I may not have realized that I was getting a air lock.  Normally I dive Gamma heavy with no issues but  at Lake Tahoe I was diving very close to neutral.  The problem I was having at Lake Tahoe, was the sub leaning uncomfortable while submerging.  I blame that on the weight of the sub and since the sub was light it could not push the water out of the vent lines casing a blockage.  I like diving closer to neutral now so I installed 4 solenoid vent valves as an experiment.  It has solved the problem completely.  In fact I only need two valves to make it sink perfectly now.  With all four valves open plus the two original valves open, the sub dives in 1 min and 30 seconds.  Slow compared to Alec's sub but good for Gamma.
My next challenge is to install a bigger port in E3000.  First I am planning a proper poured concrete test pool in my new shop.  Then I will dive E3000 a couple million times in the pool.  Then I can work on a larger port assembly.Hank_______________________________________________
Personal_Submersibles mailing list
Personal_Submersibles at psubs.org
http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles

_______________________________________________
Personal_Submersibles mailing list
Personal_Submersibles at psubs.org
http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles
  
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.whoweb.com/pipermail/personal_submersibles/attachments/20190416/1d3976d8/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: IMG_0692.JPG
Type: image/jpeg
Size: 2460185 bytes
Desc: not available
URL: <http://www.whoweb.com/pipermail/personal_submersibles/attachments/20190416/1d3976d8/attachment-0001.jpe>