P. E. I. s.r.l.

Thermic Welded Covers

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P.A. = Open length. B = Outside width. P.C. = Closed length. Stroke = Open length - closed length. a = Outside height. x = Fold height.

  1. Flange 1
  2. Fabric material
  3. Stiffener
  4. Flange 2

Formula for calculating the CLOSED LENGTH

  • AP = Opening of 1 fold = x . 2 - 8
  • SM = Fabric thickness *
  • SS = Stiffener thickness *
  • SF = Flange thickness *
  • NP = Number of folds = (P.A.: AP) + 2
  • P. C.= (SM . 8 + SS) . NP + (SF . 2)