ARI Armaturen STEVI 446 EN - Manual (Page 7)

Rev. 0040301000 0410 Page 7
Operating and installation instructions
Str. thr. control valves - STEVI
®
440 / 441, 445 / 446
4.3.1 Plug design
Fig. 11: Series 445 DN200-250 (only stainless steel)
Fig. 12: Design with perforated plug Fig. 13: Design with V-port plug
(Design with pressure balanced plug refer to Fig. 27)