Insert Cage

The Insert Cage was developed to provide the maximum service life in the most severe type environment. This premium insert cage was also designed to achieve a maximum flow area and a minimum pressure drop, while offering outstanding wear resistance and reduced service costs. It is available in both an open and closed cage configuration and in sizes ranging from 1-1/4" to 3-3/4". The cage consists of four parts; a shell, a cobalt alloy insert, a gasket and a connector or bushing. The shell houses the insert and retains the ball and seat. The shell is available in alloy steel, stainless steel or Monel. The insert is manufactured from a wear and corrosion resistant cobalt alloy and functions as the ball guide and stop. The gasket is made from a high temperature, corrosion resistance material, and provides a cushion action when the insert stops the ball. The connector or bushing secures the gasket against the insert and like the shell is available in several materials.