Canada Pipeline Accessories presents the best solution for your flow regulation and calibration needs: our critical flow venturi nozzles. Offered in both flange and clamp configurations, our venturi nozzles are reliable, cost beneficial and zero maintenance.
Our Protection Class Nozzles can be manufactured to protect all types of positive displacement, turbine and orifice meters. They may also be ordered with pressure taps-which allow our nozzles to perform backup or secondary gas measurement service, acting as a redundant device in the subsonic regime and as an overspeed protection device when choked.
Our Calibration Class Nozzles are manufactured to exacting standards in a material of your choice. Once machined and inspected, the nozzles are calibrated at one or more recognized, independent labs, according to your specifications. Our calibration class nozzles provide unparalleled repeatability and flat-line choked flow performance.
Zero maintenance, low fouling rate and a simple concept
Accuracy to suit need (0.1% - 1% of mass flow reading)
Good pressure recovery (less than 15% drop)
Reliable protection for reference meters, regardless of pressure or temperature changes
No costly meter failures caused by overspeed flows
Eliminates expensive redundant measuring devices
Comparison to secondary measurement signals any problem that may arise with the primary meter
Manufactured for all meter types-NPS 1 to NPS 30
Eliminates the hazard of H2S venting by control valve systems in sour gas applications
Nozzles are manufactured to recognized industry standards, such as ASME/ANSI, or with throat step-which increases stability at critical conditions in throat sizes ranging from 0.004" (0.1 mm) to 30" (762 mm)
Industry Round Robin data are available providing confidence levels associated with your choice of calibration facilities
