[PSUBS-MAILIST] G.L. summary Pressure Hull
Vance Bradley
Vbra676539 at AOL.com
Sat Dec 14 15:26:10 EST 2013
Linear meaning a steady increase in demand in parallel to rising pressure. If you have a low rise with a sudden increase somewhere along the line then you may have a component not working as it should.
Vance
Sent from my iPhone
On Dec 14, 2013, at 3:02 PM, hank pronk <hanker_20032000 at yahoo.ca> wrote:
> Hi Vance,
> I did not have it in the sub so it was not hooked up to the amp gauge. What do you mean by linear.
> Hank
>
>
> On Saturday, December 14, 2013 11:12:40 AM, Vance Bradley <Vbra676539 at AOL.com> wrote:
> How much did your amperage increase at depth? Was the load increase linear?
> Vance
>
> Sent from my iPhone
>
> On Dec 14, 2013, at 1:07 PM, hank pronk <hanker_20032000 at yahoo.ca> wrote:
>
>> I just did a 1/2hr run on my new drive with the shaft tube full of water and under 500psi. The seal works perfectly and there is very little heat build up. I was surprised how much the motor pulls down after 200psi. I assume it is from the shaft pushing into the thrust bearing. Also I am running the motor on 12v because it spins to fast on 24 with no load.
>> Hank
>>
>>
>> On Thursday, December 12, 2013 1:27:28 PM, hank pronk <hanker_20032000 at yahoo.ca> wrote:
>> Vance,
>> Thank you, it only took me two tries to make the assembly and 5 tries to make the shaft. Rookie machinist and all. :-)
>> Hank
>>
>>
>> On Thursday, December 12, 2013 12:36:27 PM, Alan <alanlindsayjames at yahoo.com> wrote:
>> Carsten,
>> Your friends in Hamburg wouldn't be happy with the get wet solution.
>> As an after thought on my ambient, I put a AOP valve above my
>> head & through the dome. It works the opposite way round, so that if
>> I dive too quick & the hull doesn't equalise, I get water on my head.
>> The hull is equalised with divers regulators so better to get wet
>> than the regulator diaphragm rupturing. The manual operation of the
>> AOP let's me flood up to the top of the dome in an emergency exit,
>> as there may be too much force on the latches to open them with
>> air in the dome.
>> Alan
>>
>>
>> Sent from my iPad
>>
>> On 13/12/2013, at 7:33 AM, " " <MerlinSub at t-online.de> wrote:
>>
>>>
>>
>> If you have an over-pressure valve handle obstructing the Alan
>> movement of the hatch latch handle, it would need to be
>> spring loaded or you would create the problem of the possibility
>> of diving with the valve open later on.
>>
>>
>> Yes, and if you dive with a open valve you get wet
>> learn to close it and learn to read you "pre-dive" checklist.
>>
>> :-O
>>
>> SL not required an blocking mechanism on the hatch - just an
>> simple spring loaded automatic overpressure valve.
>> Because of the automatic there is no need to block the hatch.
>> The air sound of the working valve is a clear signal not to open the hatch.
>> The function of the valve should be anyway mention in the written manual.
>>
>> very best regards
>>
>> Carsten
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