Aerzen Rotary Piston Gas Meters
Aerzen Rotary Piston Gas Meters Aerzen Rotary Piston Gas Meters
Measuring ranges, sizes, pressure losses, volume per revolution U pConnectingflange sideGasmetersizemodelnumberMeasuring range which can be calibratedEG-certificationEWG 1.33-3271.3-AEM-E01German national calibration1.33-3271.3-AEM-N01Q maxQ minQ minQ minQ minQ minQ min1 : 10 1 : 20 1 : 30 1 : 50 1 : 100 1 : 160Differentialpressure ∆pat Q maxandρ = 1 kg/m 3smallestindicatorwheelU pDN - - [m 3 /h] [m 3 /h] [m 3 /h] [m 3 /h] [m 3 /h] [m 3 /h] [m 3 /h] [mbar] [m 3 /U]50 G 40 Zc 038.05 65 6 3 2 1.3 0,65 - 3 0.150 G 65 Zc 038.06 100 10 5 3 2 1 0,6 3 0.180 G 100 Ze 039.0 160 16 8 5 3 1.6 1 4 1.080 G 160 Ze 039.1 250 25 13 8 5 2.5 1,6 4 1.0100 G 160 Ze 039.1 250 25 13 8 5 2.5 1,6 4 1.0100 G 250 Zc 11.3 400 40 20 13 8 4 2,5 5 1.0150 G 400 Zc 11.4 650 65 32 20 13 6.5 4 5 1.0150 G 650 Za 13.f7 1000 100 50 32 20 10 - 5 1.0200 G 1000 Za 13.8 1600 160 80 50 32 16 - 6 10.0250 G 1600 Za 15.11 2500 250 130 - - - - 5 10.0300 G 2500 Za 16.f13 4000 400 200 - - - - 5 10.0300 G 4000 Za 16.13 6500 650 320 - - - - 11 10.0All the meter sizes can be operated with a mechanical output drive without limitation of the measuring rangesQ max= maximum allowable volumetric gas flow at actual gas conditionsQ min= minimum allowable volumetric gas flow at actual gas conditions∆ p= pressure loss across the gas meter, measured between inlet- and outlet socketU p= value per revolution of the first indicator wheel (on the right)Measuring errorAerzen Rotary Piston Gas meters are measuring unitsappropriate for calibration. On customers’ request they arecalibrated at our factory in accordance with Germannational standards or to the latest rules established by theEuropean Union - the calibration is carried out undersupervision of an official inspector or by our own inspectorusing calibrated and registered instruments - and afterwardsdelivered accordingly.Our measuring system offers the following advantages:• wide measuring ranges while maintaining highestaccuracy• high repeatability (approximately 0.1 %)• negligible hysteresis• high reliability of the measurements, even underfluctuating flow volumes, such as heating systems• no run on, as e. g. with turbine wheel meters• long term measuring accuracy over many decades• excellent operation at high pressure due to the absenceof typical high pressure offset6The regulations governing the calibration prescribe themeasuring error limits (of the actual value). These limitsare shown on a measuring error curve such as in thefollowing figure.measuring errormeasuring rangeThe allowable measuring error not used:In the range from Q minto Q t± 2 % and from Q tto Q max± 1 %Q tvaries with the measuring range as follows:1:10 Q t= 0,20 Q max(EU-calibration)1:20 Q t= 0,20 Q max„ „1:30 Q t= 0,15 Q max(German national calibration)1:50 Q t= 0,10 Q max„ „ „1:100 Q t= 0,08 Q max„ „ „1:160 Q t= 0,06 Q max„ „ „
Dimension chart:Gas meter sizes G 40 and G 65, PN 16, housing GGG-40. Double roller type counter can be rotatednozzlesizeDNGasmetersizemodelnumberpressureratingPN*ammcmmemmfmm**h ³mmø kDimensions are not binding!For connecting flangesto EN 1092-2D***d 2Quantityd 2sweightapprox.kgs50 G 40 Zc 038.05 16 150 261 131,5 392 80 125 - M 16 4 20 2250 G 65 Zc 038.06 16 150 291 161,5 452 80 125 - M 16 4 20 26* construction length acc.to „Euro“-standard** recommended free space formaintenance work*** fully threaded /stud hole (depth = s)Dimension chart: Gas meter sizes G 100 to G 400, PN 16, housing GGG-40. Double roller type counter can be rotatednozzlesizeDNGasmetersizemodelnumberpressureratingPN*ammcmmemmfmm**h ³mmø kDimensions are not binding!For connecting flangesto EN 1092-2D***d 2Quantityd 2sweightapprox.kgs80 G 100 Ze 039.0 16 230 294 164 458 80 160 210 M 16 8 20 3880 G 160 Ze 039.1 16 230 349 164 513 80 160 210 M 16 8 20 45100 G 160 Ze 039.1 16 230 349 164 513 80 180 229 M 16 8 20 45100 G 250 Zc 11.3 16 340 333 189 522 85 180 229 M 16 8 20 90150 G 400 Zc 11.4 16 340 383 239 622 85 240 285 M 20 8 24 110* construction length acc.to „Euro“-standard** recommended free space formaintenance work*** fully threaded /stud hole (depth = s)Dimension chart: Gas meter sizes G 650 to G 4000, PN 10, PN 16, series 324 foot mounted, housing GGG-40.Double roller type counter can be rotatednozzlesizeDNGasmetersizemodelnumber150 G 650 Za 13.f7200 G 1000 Za 13.8250 G 1600 Za 15.11300 G 2500 Za 16.f13300 G 4000 Za 16.13pressureratingPN*ammcmmemm*construction length acc. to „Euro“-standard / **recommended free space for maintenance work / *** bored through)fmmgmm**h ³mmDimensions of the machine mountmmmimmkmmi 1mmk 1mm ø k DDimensions are not binding!For connecting flangesto EN 1092-2***d 2Quantityd 2sweightapprox.kgs10 400 452 268 862 440 100 270 570 510 440 380 240 285 23 8 26 26516 630 502 315 902 460 150 440 640 550 640 550 240 318 23 8 37 41510 400 522 268 1002 440 100 410 570 510 440 380 295 340 23 8 26 31016 630 572 315 1042 460 150 580 640 550 640 550 295 381 23 12 41 58010 630 592 420 1092 660 150 410 800 720 580 510 350 395 23 12 28 65016 900 642 465 1202 750 200 620 870 770 870 770 355 445 27 12 48 136010 710 752 490 1372 810 200 525 910 830 640 560 400 445 23 12 24 102016 900 792 465 1452 920 250 860 870 770 870 770 410 460 27 12 51 160010 710 812 490 1502 810 200 655 910 830 640 560 400 445 23 12 24 106016 900 852 465 1582 920 250 990 870 770 870 770 410 460 27 12 51 18007
- Page 2 and 3: Aerzen Rotary Piston Gas MetersOver
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Measuring ranges, sizes, pressure losses, volume per revolution U pConnectingflange side<strong>Gas</strong>metersizemodelnumberMeasuring range which can be calibratedEG-certificationEWG 1.33-3271.3-AEM-E01German national calibration1.33-3271.3-AEM-N01Q maxQ minQ minQ minQ minQ minQ min1 : 10 1 : 20 1 : 30 1 : 50 1 : 100 1 : 160Differentialpressure ∆pat Q maxandρ = 1 kg/m 3smallestindicatorwheelU pDN - - [m 3 /h] [m 3 /h] [m 3 /h] [m 3 /h] [m 3 /h] [m 3 /h] [m 3 /h] [mbar] [m 3 /U]50 G 40 Zc 038.05 65 6 3 2 1.3 0,65 - 3 0.150 G 65 Zc 038.06 100 10 5 3 2 1 0,6 3 0.180 G 100 Ze 039.0 160 16 8 5 3 1.6 1 4 1.080 G 160 Ze 039.1 250 25 13 8 5 2.5 1,6 4 1.0100 G 160 Ze 039.1 250 25 13 8 5 2.5 1,6 4 1.0100 G 250 Zc 11.3 400 40 20 13 8 4 2,5 5 1.0150 G 400 Zc 11.4 650 65 32 20 13 6.5 4 5 1.0150 G 650 Za 13.f7 1000 100 50 32 20 10 - 5 1.0200 G 1000 Za 13.8 1600 160 80 50 32 16 - 6 10.0250 G 1600 Za 15.11 2500 250 130 - - - - 5 10.0300 G 2500 Za 16.f13 4000 400 200 - - - - 5 10.0300 G 4000 Za 16.13 6500 650 320 - - - - 11 10.0All the meter sizes can be operated with a mechanical output drive without limitation of the measuring rangesQ max= maximum allowable volumetric gas flow at actual gas conditionsQ min= minimum allowable volumetric gas flow at actual gas conditions∆ p= pressure loss across the gas meter, measured between inlet- and outlet socketU p= value per revolution of the first indicator wheel (on the right)Measuring error<strong>Aerzen</strong> <strong>Rotary</strong> <strong>Piston</strong> <strong>Gas</strong> meters are measuring unitsappropriate for calibration. On customers’ request they arecalibrated at our factory in accordance with Germannational standards or to the latest rules established by theEuropean Union - the calibration is carried out undersupervision of an official inspector or by our own inspectorusing calibrated and registered instruments - and afterwardsdelivered accordingly.Our measuring system offers the following advantages:• wide measuring ranges while maintaining highestaccuracy• high repeatability (approximately 0.1 %)• negligible hysteresis• high reliability of the measurements, even underfluctuating flow volumes, such as heating systems• no run on, as e. g. with turbine wheel meters• long term measuring accuracy over many decades• excellent operation at high pressure due to the absenceof typical high pressure offset6The regulations governing the calibration prescribe themeasuring error limits (of the actual value). These limitsare shown on a measuring error curve such as in thefollowing figure.measuring errormeasuring rangeThe allowable measuring error not used:In the range from Q minto Q t± 2 % and from Q tto Q max± 1 %Q tvaries with the measuring range as follows:1:10 Q t= 0,20 Q max(EU-calibration)1:20 Q t= 0,20 Q max„ „1:30 Q t= 0,15 Q max(German national calibration)1:50 Q t= 0,10 Q max„ „ „1:100 Q t= 0,08 Q max„ „ „1:160 Q t= 0,06 Q max„ „ „
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