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This symptom indicate that you need to top up C02 supply, bro.
hey guys, do you have problems maintaining the co2 output with the manual regulator eh?
i tried to stabilise it at one bubble per second but after a few hours the flow completely stopped. may i know what is the problem and if there is anything i can do about it.
thanks!
This symptom indicate that you need to top up C02 supply, bro.
The manual regulator does come with a gauge right? (its being some time since I used one and forgot) What's the reading there? If its too low, eddy planer is spot on.
running out of co2 could be a reason. check the gauge/s.
for more precise control of flowrate, you'll need a needle valve. adjusting co2 flowrate with "manual regulators" are notoriously difficult.
thomas liew
I know there is manual regulator without gauge... so the only way to check the symptom that indicate.
ah but i have the tank for less than a month eh..
the manual regulator has a guage leh, and the pressure is constant so i think there is no leak.. maybe i shall try the soap method to see if there is any..
oh wow,
i also have a brand new co2 tank and a manual regulator. i have not set my tank up yet so haven't been using it. so i suppose according to tawauboy, its best that i install a needle valve together with my manual regulator to achieve a better result?
Yes, the needle valve will allow you to adjust the bps to about 1-5 bps, just ensure that the low pressure gauge sits around 35-50psi, there are some regulators that doesnt work well under 30 i think, so this renders fine bubble control via needle valve useless.Originally Posted by ongtw
i have a manual regulator and i know exactly wat you mean
a bubble counter and needle valvue do help in manual adjustment.
just make sure your needle valve isnt too tight/closed and the main canister valve is too open you goto make sure theres a balance
other wise you will hear a loud explosion of the tubing which i did one night ! lol
oh wow. ok i got it.
any recommendation on where to get a needle valve? i suppose i'll install it right after the regulator
i think the "regulator" that you have may not be a regulator. it is just a throttle valve. opening the main valve more results in increasing output pressure rather than a fixed output pressure. a proper regulator will provide a stable and safe operating pressure (usually <30psi).
even with polyurethane tubing, the maximum pressure that can be handled is 100~145psi.
thomas liew
needle valves can be purchased for a number of lfs. ensure that your "manual regulator" has an output pressure of <145psi/10bar.
you can only install the needle valve after a regulator. the regulator must be attached to cylinder. solenoid valves and needle valves are attached to the regulator.
thomas liew
hi tawauboy,
how do i know the output pressure of my regulator? its a brand new one. the taiwan brand offered by the boss of NA. anyone knows the output of that? the regulator with yellow colour knob.
any picture of the needle valves? im not sure if my co2 tank with manual regulator got any needle valve.. my bps do change abit as well...
Ong,
The left hand gauge shows how much co2 you have left in the tank. 1000 psi= full and will slowly drop to 500 psi before it becomes flasky. The right hand gauge is the output gauge which brings the pressure to around 0-50, mine is sitting at around 35 psi, this will allow the needle valve to further adjust the already low bps to about 1 bubble per 2 sec.
evo.
manual regulator most of the time dont have needle valve, Chan is selling his separately for about 2 red notes $20. The following is a swagelok needle valve. Bottom piping hook ups to the regulator or solenoid thread and the right outlet is for the co2. Picture 2 comes with a secured screw in tube lining.
Last edited by vinz; 9th Apr 2008 at 16:21. Reason: Encoded pricing is still pricing!!!
you''l need a pressure gauge to measure the output pressure. check with na to see if it is ok to attach a needle valve.
thomas liew
do you have an additional valve with a knob that allows you to adjust co2 flow rate? this valve is placed after the regulator or solenoid valve (if you have one).
since your co2 bps does change a bit, most likely you do not have a needle valve.
thomas liew
hey guys thanks for all the info.. hm, may i know how to contact chan eh? looking to get one needle valve.. just found one dead shrimp yest due to the changing ph ah..
shrimps are highly sensitive to water changes, btw you can contact Chan at 62556051, its opp thomsan medical centre.
hi torque and tawauboy.
guess i gotta call chan and check then.. cos my unit doesn't come with the output gauge
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