SCFM through standard BC inflator connector?

[jo8243]

If you have a AIR2 or other similar combined octo/inflator, you have a non-standard coupling on your BC inflator hose. I assume this was done for a better flow rate.

My question is, what is the (approximate) flow rate achievable through a standard BC inflator hose coupling?

Thanks

 

[mike_s]

My question is, what is the (approximate) flow rate achievable through a standard BC inflator hose coupling?

The limiting factor most likely will be the low pressure port on the first stage that delivers air to this connector and not the connector itself.

The LP hose will deliver somewhere between 125-150psi of "intermediate pressure", or about 135psi on average.

I've seen several regulator advertisements that deliver 30+ scfm to the 2nd stage, which would be the same delivered to the LP port of the power inflator. (to me 30+ scfm seems high though).

maybe someone else has better answers than i do....

 

[jo8243]

The limiting factor most likely will be the low pressure port on the first stage that delivers air to this connector and not the connector itself.

The LP hose will deliver somewhere between 125-150psi of "intermediate pressure", or about 135psi on average.

I've seen several regulator advertisements that deliver 30+ scfm to the 2nd stage, which would be the same delivered to the LP port of the power inflator. (to me 30+ scfm seems high though).

maybe someone else has better answers than i do....

Doesn't the connector (standard BC inflator) only have two small ones in it to let the air through, though?

 

[captndale]

The limiting factor most likely will be the low pressure port on the first stage that delivers air to this connector and not the connector itself. /quote]

Some regulators are capable of over 100 scfm gas flow through a single LP port. The flow through the typical BC inflator is limited by the Schraeder (tire stem) valve in the connector. I would be very surprised if you could get even 10 scfm through a Schraeder valve. Some technical wreck divers used to use Air2 style connectors on their BC inflators to increase the flow they could get. It is truly amazing how much gas flow you can get through one of those when it freezes and freeflows!