Talk:Hagmann valve

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Latest comment: 11 years ago1 comment1 person in discussion

Actually I do think that the traditional trombone rotary valve turns the air flow by 180 degrees... it turns 90 degrees on the way into the valve from the slide, but then 180 on the other end from the extended tubing back into the bell section. Ofiachain (talk) 18:57, 27 January 2013 (UTC)Reply

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