Title: 370.02-SC001 - Siemens VKF41.100 (Stengeventil).pdf
Stainless steel disk and shaft. The valve disk closes against an end-stop. The position of the valve disc is indicated by a notch on the front of the shaft.In all cases, a mounting set is required to assemble the actuators on a VKF41.. valve.3/8Butterfly valves PN6, PN10, PN16CM1N4131en 2013-11-11Flow diagramEngineering notes4/8Siemens Building Technologies1 0,02 0 0,3 0 0,4 0 0,5 0 06 0 0,,8 0 0,1,02 0,3 0,4 0,5 06 0,,8 0,110000 8000 6000 5000 4000 30002000 15001000 800 600 500 400 300200 150100 80 60 50 40 302010 8 6 5 4 3211DN2 3 4 56 80 10 20 30 40 50 60 80 0 1800 600 500 400 300 250 200 150100 80 60 50 40 30 25 20 1510 8 6 5 4 3 2,5 2 1,51 0,8 0,6 0,5 0,4 0,3 0,25= Differential pressure across the fully open butterfly valve by a volume flow 100V& = Volume flow through the fully open butterfly valve