Common Test Boundary Blinds
Precision Piping Products
A global provider of flange protection and preservation solutions.
Pre-Test
Boundary and blind locations are marked on the drawings in the test package by the Testing Field Engineer. Field copies of the Hydrotest package with the annotated isometrics and PIDs are issued to the Testing Superintendent for field use. Blinds which are to remain installed for a continuation test package are marked with the continuation test package number on the field copy of the test package by the Testing FE during the daily testing meeting with Field Engineering and Supervision. The Testing Foremen installs the blinds at the locations specified in the Field Copy test package. The Testing Field Engineer verifies the test blinds and correct tagging during the Pre Hydrotest Walkdowns.
Post-Test
After testing, the blinds are removed or left installed by the Testing Foreman per the Field Copy test package. The Testing Field Engineer verifies that the blinds have been correctly removed or left installed during the Reinstatement walkdown.
Pressure Test Boundary Tag
Position (Open/Closed), Contact Information, Date, and Test Package number are listed on the Pressure Test Boundary Tag. If a blind is to remain installed for a continuation test, then the continuation test package is also listed.