Flowserve Valtek Beta Positioners for Control Valves Manuel d'utilisateur télécharger pdf (Page 12)

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Flowserve Corporation, Valtek Control Products, Tel. USA 801 489 8611

100 90 80 70 60 50 40 30 20 10 0

0 10 20 30 40 50 60 70 80 90 100

90

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61

39

27

22

19

16

14

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4

100

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0

Percent Signal (Air-to-Close)

Percent Signal (Air-to-Open)

Percent C

v

(Typical)

Degrees Shaft Rotation

100 90 80 70 60 50 40 30 20 10 0

0 10 20 30 40 50 60 70 80 90 100

90

78

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Percent Signal (Air-to-Close)

Percent Signal (Air-to-Open)

Percent C

v

(Typical)

Degrees Shaft Rotation

Figure 15: MaxFlo – Equal Percent Flow Characteristic

(Shaft Rotation vs. Instrument Signal)

Figure 16: MaxFlo – Linear Flow Characteristic

(Shaft Rotation vs. Instrument Signal)

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