High temperature, low temperature, and high pressure compatible flow meter - Screw meter OMG
KRAL OMG
The OMG high and low temperature flow meter is a high-precision volumetric high-pressure flow meter. It has high measurement accuracy and can also be used as a reference instrument for flow calibrators.
The KRAL OMG series features a screw-type (helical gear) structure that allows fluid to flow linearly, resulting in significantly lower pressure loss compared to conventional gear meters (circular gear type), and enables high-precision measurement of ±0.1% R.S. The flow meter is calibrated at 5 mm²/s, allowing for high-precision measurements even at high temperatures (low viscosity) compared to circular gear meters. Therefore, it is hardly affected by temperature changes (changes in liquid viscosity). It can be used for a wide range of fluids, including fuels such as gasoline, diesel, kerosene, and heating oil, as well as hydraulic oils, lubricants, ATF, and oils, as well as urethane raw materials like polyols and isocyanates, inks, adhesives, sealants, PVC, greases, and other high-viscosity liquids, essentially for almost all fluids except water. High-precision measurement of ±0.1% R.S. is possible due to the precisely machined spindle. Direction detection (forward/reverse) is also available as an option. ◎ Specifications ◎ Operating pressure: MAX 25 MPa Viscosity range: 1 to 1,000,000 mPas Measurement accuracy: ± 0.1% R.S. Temperature range: -40 to +200°C (Varies depending on the type of pickup sensor)
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basic information
The flow of liquid entering the flow meter causes the two internal spindles to rotate, transporting the fluid in a spiral manner. A pole wheel (detection gear) attached to the spindle shaft rotates in conjunction with this. The rotation is detected by a pickup sensor and output as rectangular wave pulses. This flow meter is also compatible with high-pressure specifications. The pickup sensor is selected based on the conditions such as operating temperature. It can also accommodate low and high-temperature specifications. ◎ Pickup Sensors ◎ BEG 43D: -20 to +100℃ (standard) BEG 44: -40 to +150℃ BEG 45: -40 to +200℃ (for high temperature) BEG 47C: -25 to +100℃ (EEx ia) BEG 53A: -40 to +120℃ (2-phase pulse output) ◎ Main Applicable Fluids ◎ Polyurethane raw materials Sealants, PVC, adhesives Light oil / diesel oil Kerosene / paraffin Gasoline / dry solvent Hydraulic oil, lubricating oil ATF, CVTF Engine oil Silicone oil / heat transfer oil Other liquids excluding water
Price information
Prices vary depending on the size and sensor type.
Delivery Time
※Delivery times vary depending on options and quantities.
Applications/Examples of results
Flow rate management and control of raw materials in polyurethane foam Flow measurement of polyols and isocyanates Measurement of filler-containing polyols Management of offset ink usage Flow rate management of automotive body sealers Management of application amount for automotive undercoating Management of application amount for window sealers Grease injection/measurement Stroke control of hydraulic cylinders Detection/measurement of cylinder operation position in tunnel boring machines Flow testing of automotive hydraulic components Flow measurement of high-temperature oil Testing of components for automatic transmissions Fuel consumption measurement of marine diesel engines Performance testing of automotive fuel pumps High-pressure flow meter: cylinder position detection Low-temperature flow meter: performance testing of automotive components High-temperature flow meter: performance testing and durability testing of automotive components High-precision flow meter: calibration standard Others
Detailed information
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High precision flow ±0.1% R.S. High precision measurement of ±0.1 R.S. is possible due to the precisely machined spindle. OMG is used as a master meter for flow calibrators according to ISO/IEC 17025. (Secondary standard)
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High-temperature flow meter OMG It can be used up to +200°C when combined with a high-temperature sensor (BEG45) and a separate amplifier (BEV13).
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High-pressure compatible flow meters The OMG series supports up to 25MPa The OMH series supports up to 42MPa The OMX series supports up to 63MPa
Line up（7）
| Model number | overview |
|---|---|
| OMG 13 | 0.1～15 L/min, 1/2 |
| OMG 20 | 0.3～45 L/min, 3/4 |
| OMG 32 | 1～150 L/min, 1 |
| OMG 52 | 3.5～525 L/min, 1･1/2 |
| OMG 68 | 7～1,050 L/min, 2 |
| OMG 100 | 20～3,000 L/min, 4 |
| OMG 140 | 50～7,500 L/min, 6 |
catalog（1）
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High-precision volumetric flow meter Screw meter OMG
CAD data（4）
| Model number | overview | File |
|---|---|---|
| OME 13.4015156 | OME13, G1/2", BEG56 (non-explosion-proof) |
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| OMG 13.80187XX | OMG13 （0.1～15 l/min）, 25MPa G1/2" |
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| OMG 20.600043 | OMG20 （0.3～45 l/min）, 25MPa, -20～+100℃, G3/4" |
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| OMG13. 70.18744 | OMG13 (0.1–15 l/min), 25 MPa, G1/2", BEG44 (-40 to +150℃), approximately 0.793 ml/pulse |
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Company information
We propose fluid control devices and industrial measuring instruments, primarily used in performance testing and inspections in the research and development and manufacturing processes of automotive parts, with the motto of "reaching the places that itch" from the user's perspective, ensuring that they are optimal for our customers' specifications and satisfactory in terms of total performance, thanks to our team of experienced professionals. Measurement of pressure, load, torque, temperature, flow rate, viscosity, etc. Fluid control devices such as pressure reducing valves, back pressure valves, safety valves, and silencers with high-pressure relief valves. Please feel free to contact us regarding high-pressure compressors, high-pressure gas manufacturing equipment, high-pressure gas safety regulations, or anything else! We always strive to think from the customer's perspective and work to ensure mutual satisfaction between our customers and our company. We aspire to be a company that grows together with our customers. We have signed a dealership agreement with KRAL GmbH, a manufacturer of volumetric flow meters based in Austria. We will also provide support to customers who have been using our products. For inquiries regarding recalibration, repairs, and parts supply, as well as questions about usage conditions, methods, installation, and requests for drawings or manuals, please feel free to contact us.
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