GM Flow recognised these issues and based on customers’ requests, produced Integra-Cone™ nitrogen gas flow meter. This device offers a rugged and accurate differential pressure product for nitrogen gas. Integra-Cone™ has a working pressure of 5,000 PSI or 10,000 PSI required for these applications. Being a differential pressure product Integra-Cone™ has no moving parts, reduced leak paths and offers an instantaneous readout of nitrogen gas flow rate and flowing pressure, which gives the pump operators direct control of the flow rate and flowing pressure.