Do I need to use a pipe insert every time I connect Speedfit Pipe to a fitting?
You should always use a pipe insert when you connect Speedfit Pipe. Inserts help ensure that the shape of the pipe is kept circular, making for a better seal between the outside diameter of the pipe and the ‘O’ ring. They also make the pipe more rigid, helping to prevent ‘weeping’ past the ‘O’ ring if a side load is applied. There are 2 types of insert for use with Speedfit Pipe. The Superseal ‘STS’ Insert has it’s own ‘O’ ring which gives a secondary seal against the bore of the fitting. The Standard ‘TSM’ Insert has a plain shoulder allowing a greater length of pipe into the fitting. Use of the Standard Insert is recommended when connecting Speedfit Pipe to a compression fitting, see Question 4 below.
