Hi folks, 'm starting to think about the bladder now I can see the end of the WTC with its peristaltic pump so and thinking about the bladder.
A lot seem to use a cut down cuff from a blood pressure meter, but since I new a longer thiner bladder I think to fit I was thinking about a length of bicycle inner tube. In theory the pressure differential should be zero apart from possible over inflation at the surface as far as I can see.
I don't want it too long or I can see the same stability problems as with a long thin water ballast tank, but removing the valve core and with and adapter it should connect quite nicely with the air pump.
Originally I intended to have a seperate air reciever but for simplicity I might just use the WTC which as it is large vs the bladder the change in pressure should not be too great. I'm a bit bothered that the silicon tube type control rod seals might act as a valve venting air out or that excess pressure might pop out the shaft seal (though it will have a keeper fitted) but I've not seen that mentioned as problems anywhere.
In theory as the WTC pressure increases the external pressure should also increase as the boat dives, but I doubt they'll keep in step!
Has anyone tried an inner tube as a bladder?
A lot seem to use a cut down cuff from a blood pressure meter, but since I new a longer thiner bladder I think to fit I was thinking about a length of bicycle inner tube. In theory the pressure differential should be zero apart from possible over inflation at the surface as far as I can see.
I don't want it too long or I can see the same stability problems as with a long thin water ballast tank, but removing the valve core and with and adapter it should connect quite nicely with the air pump.
Originally I intended to have a seperate air reciever but for simplicity I might just use the WTC which as it is large vs the bladder the change in pressure should not be too great. I'm a bit bothered that the silicon tube type control rod seals might act as a valve venting air out or that excess pressure might pop out the shaft seal (though it will have a keeper fitted) but I've not seen that mentioned as problems anywhere.
In theory as the WTC pressure increases the external pressure should also increase as the boat dives, but I doubt they'll keep in step!
Has anyone tried an inner tube as a bladder?
Wed Dec 04, 2024 7:26 am by geofrancis
» Robbe Seawolf V2
Wed Dec 04, 2024 7:17 am by geofrancis
» Futaba -868/915mhz equipment
Tue Oct 29, 2024 4:46 pm by tsenecal
» RC Drift Gyro for pitch control
Sun Oct 20, 2024 2:04 pm by geofrancis
» WW2 mini sub build
Thu Oct 17, 2024 2:34 pm by geofrancis
» sonar data link
Mon Oct 14, 2024 4:31 pm by geofrancis
» ExpressLRS - 868/915 Mhz equipment
Fri Oct 11, 2024 8:58 pm by Marylandradiosailor
» Flight controllers as sub levelers
Fri Oct 11, 2024 8:14 pm by geofrancis
» 868/915 Mhz as a viable frequency for submarines.
Thu Oct 10, 2024 3:21 am by tsenecal