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KRAL Flowmeters OMG Series

Universal device for manifold application needs. Due to their continuous ongoing development, the highly modular OMG series covers a broad range of applications. KRAL Flowmeters OMG Series is therefore particularly suitable for manifold applications, such as mechanical engineering, chemical engineering, and marine.

The flow meters OMG series also combines robustness with the highest precision, characteristics for which KRAL flow meters are well-known worldwide. Due to the screw pump principle, all OMG series devices are very smooth-running and fast and can follow quick, pulsation-related changes in flow rates. Due to their extremely robust construction, the OMG series provides optimal protection against external influences, such as system vibrations and mechanical stresses in harsh environments.

Benefits:

Wide range of applications that have a manifold need for flow measurements, such as mechanical engineering, chemical engineering, and marine.
High-precision flow meter.
Extremely robust.
Stabilization zones are unnecessary.
Easy installation.
Very smooth-running, follows any rapid fluctuations in the flow caused by pulsations
Low friction and minimal loss of pressure.

Technical Data:

Media: Chemically neutral, lubricating, clean, non-abrasive.
Flow direction control: Extended sensor range optional.
Temperature measurement: Additional sensor optional.
Sensor: PNP, Namur or Push-pull.
Process fittings: DIN, ANSI, thread. Further connections upon request.

Materials:

Housing: Spheroidal graphite iron.
Screws: Nitrided steel.
Bearings: Steel or hybrid bearings.
Sealing: FKM. Other seal materials upon request.

Technical Data:

Technical data		OMG-13	OMG-20	OMG-32	OMG-52	OMG-68	OMG-100	OMG-140
Nominal diameter	DN [mm]	15	20	25/32	40	50	100	150
	DN [inch]	1/2	3/4	1	1 1/2	2	4	6
Total length with DIN flange	[mm]	145	185	255/265	285	340	460	610
Weight with DIN flange	[Kg]	6	6	13/15	21	31	77	190
Flow rate I/h	Q_max	900	2,700	9,000	31,500	63,000	180,000	450,000
	Q_nom	600	1,800	6,000	21,000	42,000	120,000	300,000
	Q_min	6	18	60	210	420	1,200	3,000
Flow rate I/min	Q_max	15	45	150	525	1,050	3,000	7,500
	Q_nom	10	30	100	350	700	2,000	5,000
	Q_nom	0.1	0.3	1.0	3.5	7.0	20	50
Max. pressure	[bar]	250	250	250	160	100	40	40
Temperature	[°C]	-20 to +200	-20 to +200	-20 to +200	-20 to +200	-20 to +200	-20 to +200	-20 to +200
Viscosity	[mm²/s]	1 to 1×10⁶	1 to 1×10⁶	1 to 1×10⁶	1 to 1×10⁶	1 to 1×10⁶	1 to 1×10⁶	1 to 1×10⁶
Precision	measurement of value	±0.1 %	±0.1 %	±0.1 %	±0.1 %	±0.1 %	±0.1 %	±0.1 %
Repeatability		±0.01 %	±0.01 %	±0.01 %	±0.01 %	±0.01 %	±0.01 %	±0.01 %
K-factor	K1 [P/I]	1,216	640	234	71.0	39.8	16.8	8.8
	K2 [P/I]	2,432	1,280	468	142	79.6	33.6	17.7
	K3 [P/I]	7,296	2,560	1,014	302	167	57.6	22.1
	K4 [P/I]	7,296	2,560	1,014	302	167	87.6	45.1
Frequency	f1 at Q_nom [Hz]	203	320	390	414	464	560	738
	f2 at Q_nom [Hz]	405	640	780	828	929	1,120	1,475
	f3 at Q_nom [Hz]	1,216	1,280	1,690	1,760	1,949	1,920	1,842
	f4 at Q_nom [Hz]	1,216	1,280	1,690	1,762	1,948	2,920	3,758

Sensor

Sensor		BEG 06* / BEG 06A*	BEG 43D	BEG 44A	BEG 45 with BEV 13	BEG 47D / BEG 47E	BEG 53A* / BEG 54A*
Application		Ex-range	Standard	High pressure	High pressure, wide temperature range	Ex-range	Flow direction detection
K-factor		K1	K1	K2	K3	K1	K4
Signal		Namur	PNP	PNP	PNP	Namur	Push-Pull
Temperature	[°C]	-40 bis +150	-40 to +150	-40 to +150	-40 to +250	-25 (-40) to +150	-40 to +150
Max. pressure	[bar]	350	250	420	420	40	650
*dependent on nominal diameter	**dependent on temperature

Reference: kral.at

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