Yokes for Rotary Valves

Abstract

A valve arrangement may include a control valve including a valve body having an inlet, an outlet and a flow path. A rotary valve stem extends along a longitudinal axis, the valve stem may have a top and a bottom, and the valve stem is operably coupled to a control element movably disposed in the flow path. A yoke may be attached to the valve body and arranged to operably couple the valve body to the actuator, the yoke comprising a first bracket having an aperture and a second bracket having an aperture. The bushing may be arranged to align the actuator shaft of the actuator with the longitudinal axis of the valve stem, the bushing having a first part and a second part, the first part engaging in the bore of the first bracket and the second part engaging Holes for the second bracket.

Description

technical field [0001] The present disclosure relates to fluid control devices, and more particularly, to rotary fluid control valves. Background technique [0002] It is well known that power plants, process plants such as oil refineries, chemical plants or pulp and paper mills consist of several process control loops connected together to produce various products and control fluid flows. Fluid control valves are placed in process control loops and typically employ a control element such as a valve plug, disc, ball, or other suitable control element in order to manipulate fluid, such as gas, steam, water, or chemical compounds, through the system. [0003] In general, various control valve configurations may be particularly suited for particular applications. For example, a rotary control valve such as a butterfly valve can be used when a quick opening valve with a narrow control range is suitable. In any configuration, such control valves are typically coupled to a contr...

AI Technical Summary

Problems solved by technology

Problems due to wear include but are not limited to reduced valve component life and valve failure

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