Gas meters - Import export

The test bench is designed for calibration with critically operated nozzles of domestic gas meters or others such as diaphragm gas meters, ultrasonic meters, thermoelectric gas meters. The test bench is specially designed for the calibration of domestic gas meters (bellows gas meters, ultrasonic meters, thermoelectric gas meters). The test bench is modular - 1x6 to 4x6 clamping positions for the gas meters can be combined. Due to the modular design 1 to 12 gas meters can be tested simultaneously. In parallel, up to twelve additional test pieces can be adapted, run in and leak tested. A magazine consisting of three critical nozzles is used as flow transmitter. Optionally, a nozzle drum with nine combinable nozzles can be used. This allows the generation of up to 512 different flow points with highest accuracy.

The rotary gas meters GM4 and GM16 meet the highest demands for reliable and precise reference measurement of smallest quantities up to 0.01 m³/h. They operate according to the direct displacement principle (RPD - rotary positive displacement), in which two counter-rotating pistons convey a fixed volume from the inlet to the outlet of the gas meter with each full revolution. Due to the specially shaped pistons, absolutely pulsation-free operation can be achieved (patent pending). They achieve an excellent measuring accuracy of 0.5 % MW + 0.005 % EW. Both versions are suitable for operation up to 6 bar overpressure. With continuous, absolutely pulsation-free and highly precise flow measurement, the reference gas meters from Ehrler Prüftechnik are the gold standard in the field of small volume measurement. Features: Reference measurement of small flow rates Continuous and absolutely pulsation-free Overpressure operation Excellent measurement accuracy Robust & compact design

Open Grid Europe owns and operates mobile gas pressure regulating and metering (GPRM) stations which you can use under a comprehensive, bespoke service contract, for example when you want to maintain the gas flow during work on a pipeline or require a temporary feed-in point to your gas grid. Technical details: Pressures of up to 84 bar Volumetric flow rates of 800 to 100,000 m3/h Can be connected to telemetry systems Adjustable pressures, flows and blending ratios Gas quality conversion from H-gas to L-gas, if required Thanks to the modular design of the system we can build a mobile station tailored to your specific needs complete with all necessary modules such as filters, pre-heaters, instrumentation and control equipment.

Control valve and Flow indicator for use with calibration gas cylinder. Flow meter markings are nominally 0.5 & 1.0 litres/min.