Flowserve Valtek Beta Positioners for Control Valves Manuel d'utilisateur télécharger pdf (Page 10)

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

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Percent Signal (Air-to-Close)

Percent Signal (Air-to-Open)

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Degrees Shaft Rotation

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Percent Signal (Air-to-Close)

Percent Signal (Air-to-Open)

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(Typical)

Degrees Shaft Rotation

Figure 11: Valdisk – Equal Percent Flow Characteristic

(Shaft Rotation vs. Instrument Signal)

Figure 12: Valdisk – Linear Flow Characteristic

(Shaft Rotation vs. Instrument Signal)

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