Check Valves

[laurasmithuk]

hi all, have asked everyone is emergency section..... but no-one knows.

which way up does arrow go on check valve? am trying to put one on my co2 system between cannister and diffuser but am not sure which way it goes. dont want it to flood or anything like that

 

[rdd1952]

I'm not sure but you can probably figure it out by hooking up airlines to either end and then runnning water through. If it stops at the valve it's correct but if it goes through, it's backwards.

 

[The-Wolf]

put one end between your lips and blow.
if air goes through then that is the way it is, if you can't blow at all
then you have the stop end.

 

[Rob.S]

I would have thought that the arrow indicates direction of flow. The pointy end of the arrow is the output side.

If you were on a one way street, you wouldn't drive against the arrow on the signpost (at least, I hope not )