Bronkhorst FLOW-SMS Series Bedienungsanleitung PDF herunterladen (Seite 22)

BRONKHORST HIGH-TECH B.V.

9.17.057 page 22

4.1.5 Maximum pressure drop

Forsolenoidoperatedcontrolvalveswithsmallorificesthemaximumallowablepressuredropforgasesisaccording

tothegeneraltablebelow.PleasekeepinmindthatthepressureratingforFLOW‐SMSis10baronly.TheKvvalueof

theshut‐offvalves,infrontofandbehindtheflow/pressurecontrollers,mustbe1.5timeslargerthantotalKvvalue

ofthecontrollers.Otherwisethepressuredropovertheshut‐offvalvewilldisturbthecontrolperformance.



Diameter[mm] K

 Normallyclosed

pmax.[bard]

Normallyopened

pmax.[bard]

0,05

0,07

0,10

0,14

0,20

0,30

0,37

0,50

0,70

1,00

1,30

1,50

1,70

2,00

4,33x10

‐5



8,48x10

‐5



1,73x10

‐4



3,39x10

‐4



6,93x10

‐4



1,56x10

‐3



2,37x10

‐3



4,33x10

‐3



8,48x10

‐3



1,73x10

‐2



2,93x10

‐2



3,90x10

‐2



5,00x10

‐2



6,63x10

‐2



40

30

24

12

8

6

5

3,6

30

20

15

8

5

n.a.



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