Large Pittsburgh seams use a male flange and a female pocket of 5/8″ with tab that after the male end is inserted is pounded over the top to ensure a secure longitudinal seam. Pittsburgh seams are approved for +/-10″ of pressure.
Large Pittsburgh seams use a male flange and a female pocket of 5/8″ with tab that after the male end is inserted is pounded over the top to ensure a secure longitudinal seam. Pittsburgh seams are approved for +/-10″ of pressure.