Valve cage for receiving a valve member and method for operating a control valve with a valve cage and a valve member

US10215306B2 · kind B2 · utility

Assignee

• SAMSON AKTIENGESELLSCHAFT · DE

Inventor

• Anke Braeuer · Niederrodenbach, DE

Key dates

• Filing date: Dec 28, 2016
• Grant date: Feb 26, 2019
• Expiry date: Dec 28, 2036

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/86734
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A sleeve shaped valve cage for receiving a valve member is described. The valve cage can guide the valve member relative to the valve cage. The valve cage can include a throttle section configured to provide pressure-reduced flow rates of the processing fluid, the throttle section having multiple throttle conduits extending from an inside of the valve cage to an outside of the valve cage; a high capacity flow section adjacent to the throttle section in the displacement direction, the high capacity flow section configured to provide increased flow rates of the processing fluid; and at least one equalization channel formed in the valve cage and extending from the inside to the outside of the valve cage, the at least one equalization channel leading from the high capacity flow section to the throttle section such that, before the valve member releases all throttle conduits, the equalization channel is released.