Patent ID: 7886773
Filing Date: 2011-02-15
Classification: F16K,G01F,Y10T

Abstract:
1. A low pressure directional stop bypass device comprising: a saddle fitting having an axially extending tubular connection element having a bypass port; a valve assembly connected with said axially extending tubular connection element having a first valve port in fluid communication with said bypass port and having a second valve port; a stuffing box connected with said second valve port; a launch tube assembly inserted through said stuffing box and said valve assembly into said axially extending tubular connection element and comprising fluid communication means for providing fluid communication between an interior of said launch tube assembly and said bypass port; and flow stopping means for stopping flow of a fluid flowing through a pipe to which said saddle fitting is connected, said flow stopping means comprising stoppage means for ensuring stoppage of said fluid flow upstream of said saddle fitting.