Apeks reg question

[Scott M]

Regulator; Primary ATX200

I had a small free flow with my primary. I tried adjusting the external sensativity knob all the way in and out but it continued so I took the know off and adjusted the setting on the inside. I started by turning it in by 1/2 a turn so it would not be so sensative. This allowed the reg to stop free flowing and breath ok but I had no purge finction. I then backed it off 1/4 turn which gave me no free flow, good breathing and the purge worked again. It seems odd that when I turned it in the 1/2 turn it breathed ok so it is getting air but that at that setting the purge does not work? Is this normal?

Regards

 

[dannobee]

Did you happen to check the intermediate pressure first?

 

[David P]

yes that is totally normal. when you turn in the inhalation knob, that pushes the LP seat up against the adjustable orifice and the purge lever also rides on the piece (not awake enough to remember the name) that is moving the seat.

 

[Scott M]

Did you happen to check the intermediate pressure first?

I didn't because I am not set up to do that but the guy I had rebuild them did and it was set correctly. He likes to tune the second stages a bit light though so I'm sure thats what caused the freeflow but since he wasn't there to fix the issue I took it upon myself to make the adjustment so I could dive.

 

[Rick Inman]

200's are famous for doing that. I have two, both the same age, and both sometimes do a small bubble-bubble during the dive. IP tests perfect, so no creep. 2nd stage adjusted correctly.

My primary buddy has a couple of 200's, and his do it too. We just ordered kits and are going to rebuild all four in the next couple of weeks. Be interesting to take a good look at the seats.

 

[Scott M]

200's are famous for doing that. I have two, both the same age, and both sometimes do a small bubble-bubble during the dive. IP tests perfect, so no creep. 2nd stage adjusted correctly.

My primary buddy has a couple of 200's, and his do it too. We just ordered kits and are going to rebuild all four in the next couple of weeks. Be interesting to take a good look at the seats.

I am going to have him recheck the IP again to see if it is creeping but they were just rebuilt for just that reason. Interesting.

 

[ianr33]

Regulator; Primary ATX200

I had a small free flow with my primary. I tried adjusting the external sensativity knob all the way in and out but it continued so I took the know off and adjusted the setting on the inside. I started by turning it in by 1/2 a turn so it would not be so sensative. This allowed the reg to stop free flowing and breath ok but I had no purge finction. I then backed it off 1/4 turn which gave me no free flow, good breathing and the purge worked again. It seems odd that when I turned it in the 1/2 turn it breathed ok so it is getting air but that at that setting the purge does not work? Is this normal?

Regards

Are you saying that you took off the LP hose and adjusted it with the knob/screw inside there? If so 1/2 turn is a HUGE distance,it only need to be changed a few degrees to stop a slow freeflow.

 

[Scott M]

Are you saying that you took off the LP hose and adjusted it with the knob/screw inside there? If so 1/2 turn is a HUGE distance,it only need to be changed a few degrees to stop a slow freeflow.

I found that out when I turned it the 1/2 turn, lol. The part I found odd was with it in I could breath the reg but the purge did not work. I don't understand as long as there is air to breath why the purge did not.

 

[ianr33]

Kinda guessing here but...........

If you take the diaphragm off the second stage you will see a lever that should be level with the top of the case. The adjustment screw inside the reg alters the height of the lever. Pushing the purge in,or inhaling so that the diaphragm is sucked downwards pushes the lever down and allows air to flow. You can suck the diaphragm down a long way but the purge button has a limited travel. So I thing the lever was so low that the purge button could not reach it,but inhaling would still pull the diaphragm down far enough to activate the lever.

 

[Scott M]

Kinda guessing here but...........

If you take the diaphragm off the second stage you will see a lever that should be level with the top of the case. The adjustment screw inside the reg alters the height of the lever. Pushing the purge in,or inhaling so that the diaphragm is sucked downwards pushes the lever down and allows air to flow. You can suck the diaphragm down a long way but the purge button has a limited travel. So I thing the lever was so low that the purge button could not reach it,but inhaling would still pull the diaphragm down far enough to activate the lever.

Sounds reasonable because as soon as I adjusted it a little more I had purge back.