Adaptation of new style Scott SCBA valve progress success use AN814-10 boss plug

[TOM aka critter99]

<img src="http://i941.photobucket.com/albums/ad257/critter99/SCBAnewesttankvalve001.jpg" alt="[linked image]">
original configuration

<img src="http://i941.photobucket.com/albums/ad257/critter99/smallscbavalve.jpg" alt="[linked image]">

valve ports apart

<img src="http://i941.photobucket.com/albums/ad257/critter99/smallcheckIMG0996.jpg" alt="[linked image]">

check valve removed from CGA fitting

<img src="http://i941.photobucket.com/albums/ad257/critter99/smallcgaview.jpg" alt="[linked image]">

CGA-347 male fitting moved to other port

All I need now is to verify a AN-10 port boss plug oring gland will seal this port and then it will operate like the older valves.  Going to get a steel one on Thursday.

 

[TOM aka critter99]

Ok guys theses valves are usable

The unused port can be sealed up with a steel AN814-10 Boss port cover

[MustangMike]

um if know what it is you where doing id be able to comment more then it looks good..lol.. sorry have not gained enough pcp/hpa/tank information for myself yet

[TOM aka critter99]

OK the latest SCBA valves have changed before all they had was a handle and a CGA-347 Connector.  The tank was charged by opening the handle and filling thru the CGA-347.  The tank was discharged thru the CGA-347 connector as well.

The new valve has a 2nd snap connector,  You do NOT open valve handle to charge tank.  The CGA-347 connector has a spring loaded check valve inside.  When you open the valve handle it flows air out of the snap connector port.

I removed the spring loaded check valve from the CGA-347 connector and moved it to the port that originally had the snap connector.  The original CGA-connectore port is now sealed up with the AN fitting and the valve not operates like the older style valve

PM me if you have any questions on setting up a SCBA tank for use.



 

[aack73]

what about filling that port with a gauge? indicate pressure of the tank or output pressure. is it even needed

[TOM aka critter99]

what about filling that port with a gauge? indicate pressure of the tank.

You could but the valve already has a tank pressure gauge under that heavy rubber bumper.  Look closer at the valve pictures abouve you will see it.

Thats one of the rteason I prefer this style valves over the modified DIN 300 SCUBA styles that are becomong more common

[aack73]

i see. or rather i didnt see at first u replied about when i edited my post.  i need a smaller tank for sure.

[TOM aka critter99]

a 30 minute SCBA tank will hold as much air as a heavy 3000 PSI SCUBA.

look over in bargain gate I linked some NIB tanks that are out there