BNC-Scott Oxygen Connectors

[Fly Boomer]

I want to order some BNC-Scott oxygen connectors from Mountain High, but their web site asks me to choose from 3 FLOW TYPES:

a) Filter Only, used with flowmeters or a regulated flow device.
b) #8 orifice (.008″) used with fixed flow, no flowmeter, Cannula.
c) #16 orifice (.016″) used on fixed flow, no flowmeter, mask, generally for Emergency.

Note: All options are filtered.

I wish I was smart enough to know what they are talking about.  Can anyone help?
 

[LANCECASPER]

12 minutes ago, Fly Boomer said:

I want to order some BNC-Scott oxygen connectors from Mountain High, but their web site asks me to choose from 3 FLOW TYPES:

a) Filter Only, used with flowmeters or a regulated flow device.
b) #8 orifice (.008″) used with fixed flow, no flowmeter, Cannula.
c) #16 orifice (.016″) used on fixed flow, no flowmeter, mask, generally for Emergency.

Note: All options are filtered.

I wish I was smart enough to know what they are talking about.  Can anyone help?
 

They are good on the phone. You tell them what airplane you have - they'll tell you which ones to get

[kortopates]

If you need a flow meter, highly recommend Precise Flights A5. they’ll sell you one with the scott connector.


Sent from my iPhone using Tapatalk

[Fly Boomer]

2 hours ago, kortopates said:

highly recommend Precise Flight

Do you like the mic mask that comes with that kit?
Now that I think about it, if you are a climber, you probably don't need no stinkin' mask.

[N201MKTurbo]

The ones with the orifice are for constant flow systems. I would suggest getting flow meters and getting the filter only connectors. That way you can determine how much oxygen you get. Besides, it will probably save you Money. And we own Mooneys, so we are cheap bastards.

[kortopates]

Do you like the mic mask that comes with that kit?
Now that I think about it, if you are a climber, you probably don't need no stinkin' mask.

yes, the mask with the built in mic is the only way to go into the flight levels. Actually i really do need mask, but my wife , the high altitude mountaineer does fine with just that oxy-miser cannula all the way to 23-24K’! but not me


Sent from my iPhone using Tapatalk

[glenn reynolds]

Call mountain high and have photos of your connectors or ports, which ever you have.  I purchased the pulse demand unit which required an inline regulator to drop the pressure.  The pulse demand cut my O2 use by 75%.  

[Pinecone]

The O2D2 is the only way to go.

I just used it on two 3+ hour flights and cannot see that the O2 system pressure needle moved.

[jamicozzi]

On 8/2/2022 at 11:56 AM, Fly Boomer said:

I want to order some BNC-Scott oxygen connectors from Mountain High, but their web site asks me to choose from 3 FLOW TYPES:

a) Filter Only, used with flowmeters or a regulated flow device.
b) #8 orifice (.008″) used with fixed flow, no flowmeter, Cannula.
c) #16 orifice (.016″) used on fixed flow, no flowmeter, mask, generally for Emergency.

Note: All options are filtered.

I wish I was smart enough to know what they are talking about.  Can anyone help?
 

What did you come up with on this? I am looking for the same thing. I think I need the #8...

[Fly Boomer]

18 minutes ago, jamicozzi said:

What did you come up with on this? I am looking for the same thing. I think I need the #8...

The #8 sounds right, but I couldn’t find documentation on the actual purchase.

[Pinecone]

Why are you not using some form of flow control device?  It greatly reduces the oxygen use, so less fills.

[Fly Boomer]

4 hours ago, Pinecone said:

Why are you not using some form of flow control device?  It greatly reduces the oxygen use, so less fills.

Not sure who you are directing this to.  If it’s me, I bought an O2D2 and regulator, but have not tried them yet.

[Pinecone]

Then you may not need the restricted one.  I would call Mountain High

[dkkim73]

I think there are two kinds of restrictors: 

1. for using the built-in oxygen system and titrating flow (like the little needle valves)

2. a pressure regulator to drop the supply pressure to match the requirements of the Mountain High O2D2 units

I would also call Mountain High. Their guy there is very patient and helpful. 

[Fly Boomer]

32 minutes ago, dkkim73 said:

I think there are two kinds of restrictors: 

1. for using the built-in oxygen system and titrating flow (like the little needle valves)

2. a pressure regulator to drop the supply pressure to match the requirements of the Mountain High O2D2 units

I would also call Mountain High. Their guy there is very patient and helpful. 

I bought the O2D2 and the in-line regulator they sell, so I may need a different adapter.  I’ll call them.

[Ragsf15e]

22 hours ago, Fly Boomer said:

I bought the O2D2 and the in-line regulator they sell, so I may need a different adapter.  I’ll call them.

Interesting. My o2d2 set came with the inline regulator and the correct scott fitting to plug it into my 252.  When I ordered, there was a dropdown box to specify which type of aircraft/connector you needed.

[Fly Boomer]

1 hour ago, Ragsf15e said:

Interesting. My o2d2 set came with the inline regulator and the correct scott fitting to plug it into my 252.  When I ordered, there was a dropdown box to specify which type of aircraft/connector you needed.

That would have been handy.

[Pinecone]

I had the same experience.  I think that the factory system has a restrictor, but the O2D2 needs the supply to be regulated to a lower pressure.

[Fly Boomer]

1 hour ago, Pinecone said:

I had the same experience.  I think that the factory system has a restrictor, but the O2D2 needs the supply to be regulated to a lower pressure.

When I bought mine, there were all kinds of warnings about not subjecting the O2D2 to line pressure. Apparently it’s an expensive mistake.

[Pinecone]

I just wish they had built the regulator into the unit.