Flow Management Devices (FMD) introduced its fourth-generation Unidirectional Captive Displacement Prover at the International School of Hydrocarbon Measurement (ISHM) in Oklahoma City. The design includes enhanced features and easier serviceability. An overall weight and mass reduction of about 40% significantly reduces flow disruption, consequently allowing better proving results for all meter types, especially Coriolis and ultrasonic. An increase in volume capacity is accomplished through a redesigned piston and poppet assembly. The new design allows for smoother operation and the availability of more volume for measurement, reduced run-up time and minimal flow disturbance during closure. The lighter weight shaft seal retainer has fewer parts to service, resulting in fewer labor hours and less downtime. As a safety feature, observation windows were added to the drive end giving the operator visual access to the belt, shaft assembly and motor drive assembly. www.flowmd.com.
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