QC6 to LP hose adaptor

Philippe GERIN · 12th February 2008, 08:08

I think I read somewhere in the Kiss forum that the threading of the Swagelok tube fitting nut is 9/16. If it's true you want to get the QCs with Swagelok tube fitting, no nut no ferrule needed as you will screw that directly into the 9/16 end of the LP hose.
Now, I never did it.
Best
Philippe

sidis8 · 12th February 2008, 10:56

Quote: (Originally Posted by aknelson)

Sidis8
Is this a QC6B600 without the tube fitting

Andy

yes

**Dave Sutton** · 12th February 2008, 13:32

Can you remove the blue cap on the adapter and show the threads? Looks like a male straight thread with an O-Ring seal?

Note as advice: If anyone buys QC-6's, do yourself a HUGE favor and DO NOT BUY THEM WITH TUBE FITTINGS. Buy them with 1/4 NPT female threads. You will make them a LOT easier and less expensive to adapt to. Trust me here. I've spend many hours trying to adapt peoples QC-6t's to their rigs and it all would have taken a few seconds to do if they were simply the right connector to begin with. They can be bought any way you like, and the correct ones are less expensive than the tube fitting ones.

Really, what I would recommend for you is to buy the tube to female NPT adapter and make this fitting "Female NPT" via the adapter (throw the other adapter in a box and save it for 'never'), and then we can make it fit anything with great ease.

The 9/16 fitting does have the same thread as a second stage feed hose, but the internal bore will not accept the hose end. It is a little thin to drill out for a direct connection.

To fit regulator supply hoses to a 1/4 NPT female port, you buy a (brass) 1/4 male to 9/16-18 (welding oxygen hose) fitting, and then use a drill to drill out the flared interior of the 9/16-18 side a little. The second stage supply hose will then fit on and swivel. The parts cost less than US$1.00 anywhere welding parts are sold. If you have the QC-6 with the 1/4 NPT female port, you have just done what you need for a few cents and a minute of time.

Dave

.

Stephane · 12th February 2008, 13:38

Dave is right, the NPT ends are much much more easier to play with than the tube fittings.
If you already have a QC4/6 with tube fittings, the best is to use Swagelok PB4 hoses. A SS-PB4-TA4/6 to fit the QC4/6, the PB4 hose (comes in different colors) and on the other side, a reusable fitting like the one made by Omniswivel or Undersea UK.
Or a SS-PB4-ST3 to go directly into a 3/8-24UNF port.

12th February 2008, 08:08	#11 (permalink)
Philippe GERIN ccr apprentice Current Rebreather/s: Megalodon Classic Kiss Other Rebreather/s: Join Date: May 2005 Location: Strasbourg, France Posts: 636	Re: QC6 to LP hose adaptor I think I read somewhere in the Kiss forum that the threading of the Swagelok tube fitting nut is 9/16. If it's true you want to get the QCs with Swagelok tube fitting, no nut no ferrule needed as you will screw that directly into the 9/16 end of the LP hose. Now, I never did it. Best Philippe
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12th February 2008, 10:56	#12 (permalink)
sidis8 New Member Current Rebreather/s: Not Bought Yet Other Rebreather/s: Not Bought Yet Join Date: Jun 2005 Location: pa Posts: 20	Re: QC6 to LP hose adaptor Quote: (Originally Posted by aknelson) Sidis8 Is this a QC6B600 without the tube fitting Andy yes
(Online)

12th February 2008, 13:32	#13 (permalink)
Dave Sutton Diveshop of Horrors Current Rebreather/s: Sport Kiss MK 15.X rEvo Other CCR Azimuth Home Build Other Rebreather/s: Classic Kiss rEvo Other CCR Azimuth Home Build Join Date: Jun 2006 Location: Narragansett, Rhode Island and Hackettstown, New Jersey Posts: 2,672	Re: QC6 to LP hose adaptor Can you remove the blue cap on the adapter and show the threads? Looks like a male straight thread with an O-Ring seal? Note as advice: If anyone buys QC-6's, do yourself a HUGE favor and DO NOT BUY THEM WITH TUBE FITTINGS. Buy them with 1/4 NPT female threads. You will make them a LOT easier and less expensive to adapt to. Trust me here. I've spend many hours trying to adapt peoples QC-6t's to their rigs and it all would have taken a few seconds to do if they were simply the right connector to begin with. They can be bought any way you like, and the correct ones are less expensive than the tube fitting ones. Really, what I would recommend for you is to buy the tube to female NPT adapter and make this fitting "Female NPT" via the adapter (throw the other adapter in a box and save it for 'never'), and then we can make it fit anything with great ease. The 9/16 fitting does have the same thread as a second stage feed hose, but the internal bore will not accept the hose end. It is a little thin to drill out for a direct connection. To fit regulator supply hoses to a 1/4 NPT female port, you buy a (brass) 1/4 male to 9/16-18 (welding oxygen hose) fitting, and then use a drill to drill out the flared interior of the 9/16-18 side a little. The second stage supply hose will then fit on and swivel. The parts cost less than US$1.00 anywhere welding parts are sold. If you have the QC-6 with the 1/4 NPT female port, you have just done what you need for a few cents and a minute of time. Dave . __________________ "Changes in Lattitudes, Changes in Attitudes, Nothing remains quite the same".... www.nobubblediving.com Last edited by Dave Sutton : 12th February 2008 at 13:37.
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12th February 2008, 13:38	#14 (permalink)
Stephane Stéphane Acounis Current Rebreather/s: rEvo Other Rebreather/s: rEvo Join Date: Nov 2005 Location: Nantes - France Posts: 769	Re: QC6 to LP hose adaptor Dave is right, the NPT ends are much much more easier to play with than the tube fittings. If you already have a QC4/6 with tube fittings, the best is to use Swagelok PB4 hoses. A SS-PB4-TA4/6 to fit the QC4/6, the PB4 hose (comes in different colors) and on the other side, a reusable fitting like the one made by Omniswivel or Undersea UK. Or a SS-PB4-ST3 to go directly into a 3/8-24UNF port. __________________ Stéphane
(Online)

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