Flow Measurement in Maritime Applications

Flow Measurement in Maritime Applications
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

Gear Type Flow Meters VC
Gear Type Flow Meters VC

Gear Type Flow Meters VCA/VCN
Gear Type Flow Meters VCA/VCN
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
— wide measuring ranges with sizes graduated to meet specific requirements
— measurement independent of viscosity within the specified ranges
— low pressure drop
— high-response measurement
— high resistance to pressure
— low noise emission
— high-precision measurement with outstanding reproducibility
— temperature-independent output signals over a wide temperature range
— high degree of accuracy, even with low flow rates at the bottom end of the measuring range

 

Gear Type Flow Meters
VCG
Screw-Type Flow Meters SVC Turbine Flow Meters
TM

Gear Type Flow Meters VCG
Gear Type Flow Meters VCG

Screw-Type Flow Meters SVC
Screw-Type Flow Meters SVC

Turbine Flow Meters TM
Turbine Flow Meters TM
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
…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

Valve Position Indicator VOLUMEC
Valve Position Indicator VOLUMEC

Valve Position Measuring VOLUTRONIC
Valve Position Measuring VOLUTRONIC

Valve Position Indicator VOLUCODEC
Valve Position Indicator VOLUCODEC
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

Hydraulic Manifolds HB 4 0311
Hydraulic Manifolds HB 4 0311

Hydraulic Manifolds HB 4 0324
Hydraulic Manifolds HB 4 0324

Read more : Hand-Held Clamp-On Ultrasonic Flowmeter For Marine And Shipbuilding

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