<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div></div><div>Rick,</div><div>that actuator may be generating one or two thousand pound force which</div><div>would be more closure pressure than would be good for the valve.</div><div>You could use springs to regulate the valve closing pressure & make sure the</div><div>actuator could never stall. But more work...</div><div>Alan</div><div><br>On 8/03/2019, at 7:27 AM, Alan via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br><br></div><blockquote type="cite"><div><meta http-equiv="content-type" content="text/html; charset=utf-8"><div></div><div> Rick,</div><div>you might have thought through this, but looking at the video again, I don't know what overload protection the linear actuator has & as the actuator would need to fully close the valve it's motor would be stalled at that point. </div><div>Normally the actuator has a switch that stops it at the end of it's stroke but timing the actuator end stroke with the full closure of the valve would be difficult. </div><div>Same for opening but there is a bit more leeway as the valve doesn't have to be fully opened.</div><div>I think you said you were using a toggle switch. I would use a "spring to centre" toggle</div><div>switch so you can't accidentally leave it on & stall & burn the motor out.</div><div>Also maybe add a couple of micro switches that activate lights on a panel to show</div><div>valve position seeing as the valve will be hidden under the floor boards. </div><div>I have seen small clear boat access hatches that could give you a visual check on</div><div>valve position & easy access if you needed to take the actuator off & manually</div><div>operate the valve.</div><div>Cheers Alan</div><div><br></div><div><br>On 8/03/2019, at 6:10 AM, hank pronk via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br><br></div><blockquote type="cite"><div><div class="ydpbadcfc6yahoo-style-wrap" style="font-family: Helvetica Neue, Helvetica, Arial, sans-serif; font-size: 13px;"><div></div>
<div>Here is Rick's video, I have it downloaded</div><div>Hank</div><div><br></div>
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