Gap Gages ensure that instrumentation tube fittings are sufficiently tightened. They are particularly useful for fittings in hard-to-reach locations and in systems where inadequate tightening could result in dangerous or expensive consequences. Once the instrumentation tube fitting has been installed, but prior to system pressurization, the Gap Gage is inserted between the fitting nut and the body hex. If the gage will not fit in at any point of the gap, the connection has been properly made up and no additional tightening is necessary. If the gage can be placed between the fitting nut and body hex, the assembly procedure must be repeated.
Company
Brennan Industries, Inc.