Energoflow GFE-404 Ultrasonic Flow Meters

Four-channel Ultrasonic Gas Flow Meter Energoflow GFE-404 is MID certified, ATEX specially designed for applications where very high accuracy is required, e.g. for custody transfer measurement of natural gas. The standard version provides an accuracy of 0.5%, flow meters with an accuracy of 0.2% can be supplied under the order. Ultrasonic Gas Flow Meter Energoflow GFE-404 certified to OIML R137 class 0.5 by PTB.

The flow meters provide accurate and reliable measurement of the gas flow rate in the pipeline in both directions within the range from 0.15 to 40 m/s. The flow meters are available in a wide range of sizes. The flow meters are pre-calibrated on-air as per customer’s requirements, pre-calibration on natural gas is provided under special order.

Energoflow GFE-404 C can be accessed remotely via PC. Using special software, it is possible to display the following data as per the customer’s choice:

Measurement results of direction and speed of gas flow, current flow, accumulated total volume;
The waveform of the signal passing through the acoustic channel;
Configuration options and settings of the flow meter;
Clock readings and calendar;
Archive data.

TECHNICAL CHARACTERISTICS:

Flow velocity, m/s	Inner Diameter (DN), mm	No. of Measurement Channels	Maximum pressure, MPa	Accuracy, %
0.15 to 40	150; 200; 250; 300; 400;	4	1.6; 6.3; 10.0; 16.0	±0.5 (0.2)

DN mm	Actual flow rate [m ³ /h]			Actual flow rate [ft ³ /h]		Max. Velocity*
DN mm	Qmin	Qt	Qmax ¹	Qmin	Qmax ¹	[m/sec]	[ft/sec]
100	4.0	33	1000	–	–	–	–
150	10	80	2500	353	88 286	50	164
200	17	125	4000	600	141 258	45	148
250	26	200	6500	918	229 545	40	131
300	40	325	10000	1412	353 146	33	108
400	67	500	16000	2366	565 034	33	108