How do you guys handle a case where a raised face flange (say a lined valve or lined fitting) has to be connected to an FRP flange, which is flat face. The gap between the flanges due to the raised face would set up a bending moment that would break the FRP flange, when applying the torque...
We are a plastic-lined pipe and fittings manufacturer who supplies the CPI with process piping. Our applications does not require code (ASME Pressure Vessel) fabrication and stamp but occasionally, we will see a spec that calls out, for instance, SA-105 flanges and SA-53 Gr. B pipe or SA-106...
