IP for 300 Bar (?) HOG D1 sealed first stages purchased in 2011/2012

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divad

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Never used but thinking of using for sub-50 degree water. They both lock up @ 150 to 152 PSI according to 2 different IP gauges. Is that the correct IP for them or is it too high? Thanks for any related information......or idle banter.
 
Thanks. They've never been used. They are as they came from the factory and are locking up, just too high. Could it be a mistake @ the factory (wherever they were assembled) or could something deteriorate on its own? If its the later why would they both lock @ the same pressure. I could just lower the IP, but that might not fix an underlying problem.
 
It's possible the factory set them too high. I used to see that now and then. They've gotten much better but I still check every 1st stage I sell before it leaves. The IP should be set at no more than 135 PSI @ 3000 PSI. Also never re-install the enviro seal with the reg not pressurized. If you remove it, the reg must be pressurized, seal screwed back on HAND TIGHT (no wrenching), and then de-pressurized.
 
It's possible the factory set them too high. I used to see that now and then. They've gotten much better but I still check every 1st stage I sell before it leaves. The IP should be set at no more than 135 PSI @ 3000 PSI. Also never re-install the enviro seal with the reg not pressurized. If you remove it, the reg must be pressurized, seal screwed back on HAND TIGHT (no wrenching), and then de-pressurized.
Hi jim,
May I know why we need pressurized the reg before screwed back the enviro seal?
 
Last edited:
Hi jim,
May I know why we need pressurized the reg before screwed back the enviro seal?
To ensure that the ambient chamber is at ambient pressure when the reg is pressurized. If you do it with the reg unpressurized it would be at ambient plus any pressure imposed by the inflated environmental seal.
 
Its the (super) easiest way to correctly position the environmental seal. What's not to like about it?
 
To ensure that the ambient chamber is at ambient pressure when the reg is pressurized. If you do it with the reg unpressurized it would be at ambient plus any pressure imposed by the inflated environmental seal.
I got what you mean, thanks a lot
 

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