Quote Originally Posted by Benelli B76 View Post
Are you not using the standard large hand lever on the fire extinguisher as the filler valve? As soon as you let go of that it shuts immediately. See the attached pic on my previous post. Are you using some other type of valve from the extinguisher ?

Baz
Hello the fire extinguisher is the same on the picture and shout immediately, only the Walther filler adaptor is connected, I fill another cylinder and not a problem.
I changed the O ring on the shutter valve and doing the same, I changed the spring and the same, the green O ring luck ok, I put the cylinder on the pistol and is ok.
This cylinder has the problem BANG! this worried me.