Hammerli AR20 Regulators and Valve English Subs

Overview of the pressure regulators of the Hammerli AR20FT. Narrated in Bulgarian. Press the CC button for subtitles in English.
Устройство на редукторите и бойния клапан.

[@yamyam60]

Now that I can read the subtitles, it's much better. Great video, thanks for sharing. Very useful for someone like me that owns an AR20FT and like to do my own maintenance. I have owned this from new for a year and shot over 10,000 pellets with this rifle and it is still going strong, but you never know, one day I may have to look up this video again.

[@jorgemontepeque2577]

Thanks for the prompt suggestion. I will try Umarex. Thanks you very much.

[@TeXHoMaHuaK]

I have never tried to do it. That doesn't mean it is impossible. The pressure is vastly affected by the height and stiffness of the spring washers stack. If you change the arrangement of the springs, you will get a different pressure. If you put a (thin, 0.1mm or so) washer under the stack, you will get increased pressure. Rule of thumb is - longer/harder stack = more pressure.

[@TeXHoMaHuaK]

Thanks for your comment.
The regulators should be available as spare parts. I haven't tried to find who sells them. If you are unable to find a store, I will try to help you out.

[@ClubDeTiroDeportivoLaSabana]

Thanks for the video, this valve is of the ar20 ft 16 joules?

[@TeXHoMaHuaK]

@yamyam60 There you go! Just enable CC to get the brand new subtitles in English :)

[@humannx]

Hello! Nice presentation!
I want to ask about the thickness of the valve (fire pin) Have you measured it?

[@Nurzhan301]

Hi
Thanks for the great vid!
As far as i understood the reg is almost the same in walther dominator 1250! I have .25 cal 50J version. Is it possible to rise the power by adding 1 or 2 woshers in to the reg? Or i need to drill holes to make air flow faster?

[@dyelli22]

parabens pelo video..agora me fala uma coisa esse Regulador e a válvula tem pra vende separado??
so brasileiro desculpa o meu ingles

[@eblemis]

Thanks for the vid. I have the same rifle with some issues, thought you might have an idea. First of all, it seems to go out of regulated pressure at pretty high level like around 140 bar. What should be the regulator pressure under normal circumstances?
The second problem is that the shots seem to be regulated but the muzzle velocity shifts around a little like 15fps every 20 or so shots which ofcourse returns as inaccuracy. Do you have any idea what the problem could be and how to fix it? Thanks.

[@jorgemontepeque2577]

Thanks for the video. Would you know the size of the green and red O rings. And the material is it silicone? Thanks

[@TeXHoMaHuaK]

Jorge Montepeque, I will try to measure the O-rings for you. I had several repair kits delivered free of charge from Umarex. You should ask their dealer for the O-rings, you might be able to get them for free.

[@dethomasrohr5282]

Hi Panayot,
do you still have access to the AR20 valve and spring for 16 Joule?

[@TeXHoMaHuaK]

I still have the gun. It's not in pieces though :)

[@ХАН.ПОЮЩАЯСТАЛЬ]

Продаёшь? Цена в рублях?

[@yamyam60]

Yes please, I need some info in english..............all of it. LOL

[@aibekabidin1357]

Қазақстан да барма мылтық заказ қаншаға келеді