"mvsen" . "2012.05.27" . "mvsen" . "RDS208634082146" . "A 'standard size artefact' where one of the ends is NPS 18. In this case the dimensions reflects the fact that the pipes, valves and fittings are intended to be installed in a system where the pipe sizes are according to ASME B36.10/B36.19." . "Recorded" . "RDS" . . "NPS 18 ARTEFACT" . "NPS 18 ARTEFACT" .