Back pressure flap for use in e.g. sewage treatment plant, has seal formed as fit seal with rubber profile, and flap cover formed as single-piece from plate, where plate has upper bent part that exhibits same width as of flap cover
摘要
<p>The flap has a rotary seal (3) arranged at a venting of a pipe body (2), where a flap cover (8) cooperates with the seal. The seal is formed as a fit seal with a rubber profile. The rubber profile has a fitting part for fitting on a front end of the pipe body wall. The flap cover is formed single-piece from a plate, where the plate has an upper bent part that exhibits same width as of the flap cover.</p>
