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**Dave Sutton** · 31st October 2007, 13:16

Ok...

You have 1/16 NPT on the KISS valve. DEFINATELY a non-standard thread. Gordon then used a 1/16 NPT to 1/4 inch tube fitting, so that 1/4 tube can be installed into that fitting. At the ends of the hoses he used, he had them terminated in 1/4 tube, and when the tube was inserted into the adapter and swaged down, the hose then had the threaded ferrule now swaged onto it that let it be threaded onto the adapter.

To make the fitting on the KISS valve be "complete" again (meaning it's ready to accept a 1/4 tube again), you need 1 front ferrule, 1 back ferrule, and 1 nut for a 1/4 tube fiitting. You can buy these by the "each", or buy ANY 1/4 tube fitting, remove the nut and ferrules, and stick them onto the adapter that's installed in the KISS valve. Now you're back to square 1.

IF that valve was a 1/4 tube end valve, all you would do would be to cut a 2 inch length of tube, stick it into the valve and swage it (1 and a quarter turns by wrench), and then do the same thing on the fitting on the KISS valve.

IF the valve is other than 1/4 tube.... you're more or less buggered. There are clunky ways to make it fit, but it'll never be right. See if Swagelok has a 1/8 tube to 1/4 tube adapter. if so, it'll work OK...

Those valves, BTW, are just a few bucks new from McMaster-Carr. They will be Parker instead of Swagelok, will fit, and are just as nice.

Dave

31st October 2007, 13:16	#5 (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: 2,689	Re: Swagelok Threads Ok... You have 1/16 NPT on the KISS valve. DEFINATELY a non-standard thread. Gordon then used a 1/16 NPT to 1/4 inch tube fitting, so that 1/4 tube can be installed into that fitting. At the ends of the hoses he used, he had them terminated in 1/4 tube, and when the tube was inserted into the adapter and swaged down, the hose then had the threaded ferrule now swaged onto it that let it be threaded onto the adapter. To make the fitting on the KISS valve be "complete" again (meaning it's ready to accept a 1/4 tube again), you need 1 front ferrule, 1 back ferrule, and 1 nut for a 1/4 tube fiitting. You can buy these by the "each", or buy ANY 1/4 tube fitting, remove the nut and ferrules, and stick them onto the adapter that's installed in the KISS valve. Now you're back to square 1. IF that valve was a 1/4 tube end valve, all you would do would be to cut a 2 inch length of tube, stick it into the valve and swage it (1 and a quarter turns by wrench), and then do the same thing on the fitting on the KISS valve. IF the valve is other than 1/4 tube.... you're more or less buggered. There are clunky ways to make it fit, but it'll never be right. See if Swagelok has a 1/8 tube to 1/4 tube adapter. if so, it'll work OK... Those valves, BTW, are just a few bucks new from McMaster-Carr. They will be Parker instead of Swagelok, will fit, and are just as nice. Dave __________________ "Changes in Lattitudes, Changes in Attitudes, Nothing remains quite the same".... www.nobubblediving.com Last edited by Dave Sutton : 31st October 2007 at 13:21.
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