MATERIALS OF MAIN PARTS
This valve modulates the flow by the plug that reciprocates in the centerline direction of the pipeline to increase or minish the outlet section.There are four types of outlets:E type is suitable to throttle the flow;F type is suitable to open and close;S＆L type are suitable to modulate the flow.The motor operation type is suitable to be used as automatic modulation type to modulate the flow in the pipe line.
