Huma inline tank regulator

[rcs9250]

I recently purchased a Huma inline regulator and want to do the spring washer adjustment to raise the regulated pressure.

Has anyone done the changeover ? 

The Huma instructions say to remove the spring clip (snap ring) and then from the opposite side screw a 3mm screw into the threaded hole and extract the piston. Then you arrange the spring washers per the instructions from Huma.

Randy

 

[stoutblock]

Opening up this older thread as I recently bought this same inline regulator from Huma-air.

For some reason rcs9250 photo shows the internal piston with the c-clip already removed. I assumed he already removed it or it is missing?

Here are the instructions from the manual:

http://foto.huma-air.com/foto/Manual%20inline%20reg%20adjustable%20rev%2004.pdf

I need the maximum setting of 250 BAR so I stacked the washers for the “high” setting as shown in the manual.

With the external dial adjustment set to max, and locked with the setscrew, I only get 230 BAR. I have a note off to Huma-air with no response yet. Anyone been able to use this regulator at 250 BAR max?

 

[bigHUN]

You don't need to take the entire regulator apart. I don't have it with me right now but remember removing only one 3mm setscrew and you can rotate the Reg 360.

Mine is set currently to Medium but I wanted to add 10 more b ars to reach 195 for tethering.

Edit:

I just found the email I received from Huma, how to change the gauge orientation:

"

If you look in the male stainless piece of the regulator you will see a bronze setscrew. This is used for the maximum pressure adjustment. To go from 220 to 180 you would need to turn in that setscrew (clockwise) a bit less than half a turn.



If you need the bronze part to be somewhere else you can always adjust the setscrew as well so you will be using another part of its adjustment. But note that the maximum pressure also will be adjusted when doing that.

"

 

[stoutblock]

You don't need to take the entire regulator apart. I don't have it with me right now but remember removing only one 3mm setscrew and you can rotate the Reg 360.

Mine is set currently to Medium but I wanted to add 10 more b ars to reach 195 for tethering.

Yes I already moved the external adjustment to max and could only get 230 BAR. According to Huma the max pressure for the range can be increased with the slotted screw at the inlet. 

 

[stoutblock]

I heard back from Huma. The proper way to adjust maximum pressure (within the range established with stacking washers) is with the slotted screw at the center of the inlet. Facing the inlet, clockwise = decrease pressure. Once the range is selected with the washers, and maximum pressure of the range set with the inlet screw, then you can use the external adjuster to fine tune within this range. I also determined its best to lock the external adjustment with the periphery set screw to keep pressure stabilized.

I find this regulator works great for my application. I like to have my tank filled to 300 BAR but my rifles filled to 250 BAR. Once set I really have no need to tweak it.

 

[bigHUN]

Usually I am filling my scba's to 300 bar, but I am shooting from bench sometimes for hours, so I am tethering at about 195-190.

 

[Dutchairgunner]

I heard back from Huma. The proper way to adjust maximum pressure (within the range established with stacking washers) is with the slotted screw at the center of the inlet. Facing the inlet, clockwise = decrease pressure. Once the range is selected with the washers, and maximum pressure of the range set with the inlet screw, then you can use the external adjuster to fine tune within this range. I also determined its best to lock the external adjustment with the periphery set screw to keep pressure stabilized.

View attachment 195730

I find this regulator works great for my application. I like to have my tank filled to 300 BAR but my rifles filled to 250 BAR. Once set I really have no need to tweak it.

I recently also bought this regulator, however, one thing doesnt make sense for me. Initally when I connected it to my 300 bar scuba tank, I opened the main valve of the scuba tank and the regulator red 0, even though the manometer of my scuba tank red like 260 bar or so. Then I loosened the big bronze screw you show here, turning it counter clockwise. Now I get outgoing pressure. However, in the manual, it says the regulator comes with the standard spring stack setting(max 200 bar). However, if I turn the big bronze screw counter clockwise enough, I can also get outgoing reg pressure of 220-230 bar, even though I didnt change the spring stack, so the maximum should be 200 bar, I am somewhat confused.