I took my huma prod reg apart to clean. Now I dont know how the washers go back in the piston. Which way to they face? Can someone help me out. Does it matter what way the face or do they need to face the right way? Thanks 
Help with huma prod reg.
- Thread starter 2fast2furious
- Start date
I check huma website. It only tell how to install the reg. It doesnt tell how to stack the washers.
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If the reg is made/set (internally) up the same way as the Brococks with Huma Regs, look up Brocock commander Regulator rebuild AOA has a video where they take it apart and put it together and explain the washers. I watched it a while ago but I don’t remember the right way they go off the top of my head. Hope this helps.
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The way I see it there are only a couple of ways to do it as ghoststalker suggests"()()()" would be for lower power and (())(( for higher power. I don't know which way is right for your reg. Look closely at the washers cuz sometimes they are different thicknesses and you would want to alternate thick thin thick thin when stacking them. I found this pic it is small but looks like they may be stacked the second way? I can't say for sure.
http://foto.huma-air.com/foto/Huma%20regulator%20revision%20guide.pdf
http://foto.huma-air.com/foto/Huma%20regulator%20revision%20guide.pdf
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It looks like in the directions biopostef, it shows the way bio’s second order goes. (( )) ((. I thought I watched Brian at Edgun stack them () () () maybe different for different guns ? Or I could be wrong, going to try and find it again. Looks like that rebuild my have been on the factory reg.
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Ok I set to (())(( and fill up my gun. My tube gauge went to 3000psi and reg gauge went to 2500. Both starts dropping and I can hear air escaping. I probably did sometime wrong or stack them wrong. Cause before my pressure reg was set to 1400psi. I didnt even touch the reg pressure set screw. That was still in the same spot so idk how pressure went pass 2000 psi. Maybe I will email huma. The thing is I have to wait few days for them to respond.
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If it's not to difficult you could maybe try stacking the washers the other way? There are only a couple of ways to stack them and that pic was kind of tiny.
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Where I get confused is which direction. You can show me all the “parentheses” marks to show orientation of the spring washers, but which end is, say, the brass adjustment screw end, or the top of the regulator? Does it matter at all? I’ve seen folks refer to the orientation of these washers for a long while now, but could never make out which end was which.
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Let me add- if it goes like stacked clamshells like in post number 6 by BIOHAZARDMAN, then yes, it doesn’t matter which end was which, duh! I already understood that. It’s when one side of the orientation differs in pattern from the rest, as 2FAST attempted, or if there’s different thicknesses of washers in the mix of things.
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Tell me what rifle this reg is meant for...or copy and paste one like it from the Huma website to show me which one you have.
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Yes stacks of 2 in a (())(( configuration with concave into valve body and convex against the LP side of spool
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Picture number 7 shows it really well, in the Huma link above. It looks to me as though they are all the same thickness.
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