REINFORCED ELASTOMERIC DIAPHRAGM

A diaphragm is provided that includes a plurality of zonal portions that define reinforced and non-reinforced areas of the diaphragm. A first zonal portion extends from a marginal edge portion toward a central portion and is formed of a fabric material. A second zonal portion extends from the first...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: BANTA PAUL, PANTIER DAVID, GARROD TODD, TORNQUIST DAVE, VASQUEZ JOHN
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:A diaphragm is provided that includes a plurality of zonal portions that define reinforced and non-reinforced areas of the diaphragm. A first zonal portion extends from a marginal edge portion toward a central portion and is formed of a fabric material. A second zonal portion extends from the first zonal portion toward the central portion and is formed of an elastomer. A third zonal portion defines the central portion and is formed of a fabric material. The combination of reinforced and non-reinforced portions provides for a decrease in the radial tension (spring rate) of the diaphragm and helps prevent undesired changes to the flow control valve flow setpoint.