En-Fab, Inc.  recently designed, engineered, manufactured, installed and commissioned  two Ultrasonic Metering and regulation stations.  These units were for Pemex Gas Y Petroquimica located near Monterrey, Mexico.  The meters are  20” and 16”  Ultrasonic meters with a flowing capacity of 233 MMSCFD at 900 psig and 144 MMSCFD at  900 psig respectively.  These stations are operated unattended via a local control panel with flow computer and PLC connected to the pipeline DCS through Ethernet.