flak monkey
|
| posted on 29/3/11 at 10:23 AM |
|
|
Pressure testing tanks
I need a means to pressure test my bike oil tank (along with others in the future no doubt) and I am wondering the best way to do it.
I thought the easiest way would be to use an inline tyre (schrader) valve then I can just seal the other connections on the tank, and pump it up to a
set pressure with a foot pump or airline. But I cant seem to find valves in the right configuration
(inline).
I need to know what pressure I am putting into the tank so this was the easiest way I could think of.
Any suggestions?
Thanks 
Sera
http://www.motosera.com
|
|
|
|
|
daviep
|
| posted on 29/3/11 at 10:33 AM |
|
|
Have you got any 8mm or 10mm fittings on your tanks? If so then I'm sure if you cut the mushroom off the bottom of a normal tyre valve to you
leave a parrallel shnak then this could be jubileed into a hose and the other end of the hose on to the tank.
I take it we're only talking 10-15psi?
Davie
“A truly great library contains something in it to offend everyone.”
|
|
|
daviep
|
| posted on 29/3/11 at 10:35 AM |
|
|
or for a fancier solution turn a nice hollow aluminium blanking cap for one of the bigger hoses, pop a hole in the end and pull a tyre valve in as per
car wheel rim fitment.
Davie
“A truly great library contains something in it to offend everyone.”
|
|
|
coyoteboy
|
| posted on 29/3/11 at 10:38 AM |
|
|
Is this for a proper pressure test or just a leak test? A proper pressure test at operating pressure +60% etc would normally be done with a liquid
medium as it's easier to pump up to pressure and doesn't contain vast amounts of energy (shrapnel) if the tank does let go?
|
|
|
flak monkey
|
| posted on 29/3/11 at 10:43 AM |
|
|
Thanks, I did think about doing that. And its probably what I may end up doing anyway.
I guess I was just wondering if anyone knew of a source of screw in or inline schrader valves then I could make up a proper adaptor which will last
for a while, rather than hash something together
My tanks have -6JIC fittings on them, so 8mm bore hose.
ETA - its just for leak testing. The tanks themselves dont run under any pressure at all.
[Edited on 29/3/11 by flak monkey]
Sera
http://www.motosera.com
|
|
|
liam.mccaffrey
|
| posted on 29/3/11 at 11:14 AM |
|
|
theres always a penetrating oil (diesel) test with a bit of talc on the outside, its good enough for 80m storage tanks, though we do a pressure
service test too.
Build Blog
Build Photo Album
|
|
|
blakep82
|
| posted on 29/3/11 at 11:23 AM |
|
|
quote:
Originally posted by flak monkey
I guess I was just wondering if anyone knew of a source of screw in or inline schrader valves then I could make up a proper adaptor which will last
for a while, rather than hash something together
like these?
Flush Fit Wheel Tyre Valves on eBay (end time 15-Apr-11 22:08:29 BST)
________________________
IVA manual link http://www.businesslink.gov.uk/bdotg/action/detail?type=RESOURCES&itemId=1081997083
don't write OT on a new thread title, you're creating the topic, everything you write is very much ON topic!
|
|
|
britishtrident
|
| posted on 29/3/11 at 11:26 AM |
|
|
Many fuel pressure rails have in screw in Schrader valves I bought a couple of Rover KV6 ones a couple of years ago to make up a cooling system
tester --- might still have one ISTR a brass fitting with M12 male thread.
Other source is bolt in tyre valves --- I have a couple of spare light alloy ones.
|
|
|
bitsilly
|
| posted on 29/3/11 at 04:42 PM |
|
|
I sealed up the holes, blew up a balloon, and taped it over the fuel outlet.
The next morning it had not gone down!
That tank was never meant to be pressurised, I was just checking for leaks.
Well, it's a locost option!
|
|
|
jacko
|
| posted on 29/3/11 at 05:29 PM |
|
|
You can get a pump and gauge for checking radiators on cars could you adapt something like that
just pump it up and watch the gauge
Jacko
|
|
|
flak monkey
|
| posted on 29/3/11 at 08:20 PM |
|
|
Thanks gents, will investigate the options
Sera
http://www.motosera.com
|
|
|
