Flow Measurement in Maritime Applications
The ship’s fuel consumption can be determined using a flow meter. Flow measurement in maritime makes it possible to determine how much fuel the ship is flowing through the ship’s fuel pipe.
KRACHT Company
100 years of experience make us stand out as a reliable partner.
We are a leading manufacturer of transfer pumps and flow meters. 270 employees at the Werdohl site and an additional 85 employees in our subsidiary companies in China, USA and Hungary design, produce and sell products in both standard versions as well as special solutions tailor-made to customer wishes.
These high-quality components are used for gear lubrication, for instance in wind power plants and ships gears, in dosing and mixing plants e.g. for manufacturing PU foams, and in testing technology. The range is supplemented by products for mobile hydraulics and industrial hydraulics which are used, for example, in construction machinery, agricultural machines, in general mechanical engineering and a multitude of stationary applications.
Dependable delivery and high-quality standards are just as important a part of the corporate philosophy as fairness to customers, suppliers and employees alike.
Gear Type Flow Meters VC
Screw-Type Flow Meters SVC
Turbine Flow Meters TM
Flow Meters in Maritime Applications
Gear Type Flow Meters VC |
Gear Type Flow Meters VCA/VCN |
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| Material | VC 0.025… VC 16 Spheroidal cast iron VC 0.025… VC 5 Stainless steel | VCA Aluminum VCN Stainless steel |
| Measuring range (l/min / gal/min) | 0.008 …700 / 0.002 …185 | 0.008 …700 / 0.002 …185 |
| Turndown ratio | 0.25 | |
| Working pressure (bar / psi) … | …400 / 5802 | …200 / 2901 |
| Viscosity (cSt) | … 1 000 000 | 20 …4 000 |
| Measuring accuracy | up to ± 0.3% deviation from measured value | up to ± 1% deviation from measured value |
| Temperature (°C / °F) | ?30 …220 / ?22 …428 | ?10 … 80 / 14 …176 |
| Option | ATEX | ATEX |
| Applications | – Consumption measurement – Filling of gear lubricant | — Lubrication oil control
— optimized for individual applications because the series have been rendered media-specific by means of differing clearances, bearing variants and materials |
| Gear Type Flow Meters VCG |
Screw-Type Flow Meters SVC | Turbine Flow Meters TM |
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| Spheroidal cast iron | Spheroidal cast iron | Stainless steel |
| 1.0 …240 / 0.3 …63 | 1.0 …1500 / 0.3 …396 | 4.6 … 9167 / 1.2 …2422 |
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| …315 / 4569 | …250 / 3626 | …400 / 5802 |
| 20… 4 000 | 1… 1 000 000 | – |
| up to ± 2.5% deviation from measured value | up to ± 0.2% deviation from measured value | up to ± 0.5% deviation from measured value |
| ?15 …120 / 5 …248 | ?30 …150 / ?22 …302 | ?30 … 120 / ?22 …248 |
| – | ATEX | – |
| – Consumption measurement | – for low viscosity fluids |
| Valve Position Indicator VOLUMEC | Valve Position Measuring Instrument VOLUTRONIC® |
Valve Position Indicator with Encoder VOLUCODEC |
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| Design | Gear type volume counter | Gear type volume counter | Gear type volume counter |
| max. flow rate | 02: 4 l/min / 1.1 gal/min 04: 7 l/min / 1.8 gal/min 5: 150 l/min / 40 gal/min | 02: 4 l/min / 1.1 gal/min 04: 7 l/min / 1.8 gal/min 5: 150 l/min / 40 gal/min | 02: 4 l/min / 1.1 gal/min 04: 7 l/min / 1.8 gal/min |
| max. working pressure | 02 / 04: 200 bar / 2901 psi 5: 300 bar / 4351 psi | 160 bar / 2321 psi | 02 / 04: 160 bar / 2321 psi |
| Display | mechanical | by downstream electronic possible | LED |
| by downstream electronic possible | Yes | – | No |
| Current-independent position detection | Yes | No | Yes |
| Leakage detection | Yes | by downstream electronic possible | Yes |
| Reset function | at slipping clutch | by downstream electronic possible | Yes |
| Calibration to actuator size | by gear reducing | by downstream electronic possible | free programmable |
| Flow direction | must be defined | A-B / B-A | free programmable |
| Error message | No | by downstream electronic possible | Yes |
Hydraulic Manifolds
| HB 4 0311 | HB 4 0324 | |
| Description | — double pilot operated check valve for holding the actuator position
— two pressure relief valves for limiting the pressure caused by increased temperature — throttle valve in port A for speed regulation of the actuator — check valve for filling the piping to avoid wrong indications when temperature fluctuates |
— check valve in P for holding the actuator position when switching parallel actuators
— check valve in T to avoid indicator fluctuations due to pressure pulsation — one temperature pressure relief valve for limiting the pressure caused by increased temperature — throttle valve in port A for speed regulation of the actuator — check valve for filling the piping to avoid wrong indications when temperature fluctuates |
| Schematic |
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