Re: Primary Rawater Manafold


Bill Kinney
 

The outlet of our sea strainer is 1 1/2 inch BSP.  

In this size, BSP and  the US Standard NPT have identical thread pitch and depth, but different thread shapes.  You can screw either one into the other with full mechanical strength, but they will not seal reliably leak tight using only TFE tape.  For low pressure applications (like the sea strainer) use of a good pipe sealant paste will give a permanent leak tight seal.

Bill Kinney
SM160, Harmonie
Hampton Roads, VA

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