Submarine hardware

[witchblade]

U-178,

I keep getting lekkages in

[color=#000000]U-178,

I keep getting lekkages in my (Homebuild) pistontanks. Aluminium casing ans a very strong kinda lexan piston. The lexan is also used in advertising systems and is about 3cm. thick. When I work with it on my lathe it get warm so I make the piston the same size as the innerdiameter of the casing. After cooling down it fits like a glove with a minimum of play. When I test them (3mm O-rings as seals) they tend to leak after half a hour. Could this be that the (cold) water makes the piston shrink more then it does the alu. casing.

So my question is]

[gotland]

Danny,

sounds like not enaugh presure

Danny,

sounds like not enaugh presure on the O-Ring. These tolerances of different water temperatures shouldn't make sense.

Please mail me pictures for a diagnose

Lothar

[berserk]

Hi Danny,

I also don’t think

Hi Danny,

I also don’t think it came from the shrinking. I think your o-ring don’t fit properly. It’s hard to say more without pictures.

Here some piston tank basics]http://www.simrit.de/D/SimritKatalog/start.asp?dummy=0&StrukturName=service_berechnungs programme.xml&StrukturID=09060000000000000000&Akti onID=94&ResultCode=6[/url]

[berserk]

Sorry, I've made a mistake

Sorry, I've made a mistake on the link above. Here eat this!

Simrit Software