- Phone
-
Address
Room 1501, Caoyang Business Building, 889 Zhongjiang Road, Putuo District, Shanghai
Shanghai Weitelui Industrial Development Co., Ltd
Room 1501, Caoyang Business Building, 889 Zhongjiang Road, Putuo District, Shanghai
Spot German Kracht flowmeter VCA 0.04 K4 F3 R1 SH
GermanyStrengthClark focuses on the research and development of high-precision flow meters, gear pumps, valves, and other products, which are widely used in industrial automation, hydraulic systems, engineering machinery, and other fields.VCAThe series isStrengthA volumetric gear flowmeter has been launched, characterized by its high precision, high reliability, andcompactStructural design, demonstrated in small and medium-sized traffic measurement scenariosexcellent
Model parameter analysis
VCA: Series code
VCAisStrengthThe standard series identification of the company's volumetric gear flowmeter adopts the principle of spur gear measurement. By rotating a pair of meshing gears in the measuring chamber, the fluid volume is converted into gear speed, thereby achieving flow measurement. This series has high measurement accuracy (usually up to)±0.5% FSOr higher), low pressure loss, and insensitivity to changes in fluid viscosity, suitable for various industrial fluids such as mineral oil, hydraulic oil, lubricating oil, etc
0.04: nominal flow rate(m³/h)
number“0.04”The nominal flow rate of this flowmeter is0.04 m³/h(i.e40 L/h). The nominal flow rate refers to the flow meter operating under standard conditions (usually20℃The upper limit of the rated flow range for fluids with specific viscosity, and the actual measurement range is generally within the nominal flow rate10%~100%Therefore, the effective measurement range of this model is approximately4~40 L/hUsers need to choose a matching nominal flow model based on the actual flow requirements of the working conditions, to avoid long-term use under conditions beyond the range, in order to ensure measurement accuracy and equipment lifespan
K4Installation flange standard
“K4”Representing the installation flange interface standard for flow meters. according toStrengthThe company's product specifications,KSeries flanges typically correspond to specific dimensions and connection standards, among which“K4”Specifically refers to the nominal diameter and pressure rating of the flange. For example, it may correspond toDN10(nominal diameter)10mm)The flange has a pressure rating ofPN16(Heavy work pressure)16 bar),During installation, it is necessary to ensure that the dimensions and sealing surface types (such as flat and convex) of the pipeline flange and flow meter flange are fully matched to prevent leakage and ensure connection strength
F3Output signal type
“F3”Indicate the signal output mode of the flowmeter.StrengthThe common output signals of flow meters include pulse signals and analog signals (such as4~20mA)Wait, wait,“F3”Usually corresponds to pulse output, specificallyNPNOpen collector output orPNPTransistor output (to be confirmed by model subdivision). The frequency of the pulse signal is proportional to the flow rate through the flowmeter, and users can use a counter orPLCCollect pulse signals and calculate instantaneous and cumulative flow rates. For example, if the pulse equivalent is100 pulses/LWhen the traffic is10 L/hWhen, the output pulse frequency is(10 L/h × 100 pulses/L)/ 3600 s ≈ 0.278 Hz.
R1Sealing material
“R1”The sealing material representing the part of the flowmeter that comes into contact with the fluid inside.StrengthCommon sealing materials include nitrile rubber(NBR)Fluororubber(FKM/Viton)Ethylene propylene rubber(EPDM)Wait, wait,“R1”Usually corresponds to nitrile rubber(NBR)It has good oil resistance and wear resistance, and is suitable for non-polar fluids such as mineral oil and hydraulic oil. If the fluid is a corrosive medium (such as acid, alkali) or a high-temperature fluid, it is necessary to choose sealing materials with stronger corrosion resistance such as fluororubber (such as the corresponding code may be)“R2”or“R3”)Users need to confirm the compatibility of sealing materials based on the actual fluid characteristics
SH: Additional features or special options
“SH”It is an additional function or special option code of the flow meter, and the specific meaning needs to be combinedStrengthDetermination of model naming rules
High temperature option: suitable for scenarios with high working temperatures (such as exceeding80℃), may use high-temperature resistant materials or heat dissipation structures
Explosion proof certification: such asATEXorIECExExplosion proof certification, suitable for flammable and explosive environments
Special connection methods: such as threaded connections instead of flange connections, or using special materials (such as stainless steel) for the shell, etc
Working principle and structural characteristics
working principle
VCAThe series flowmeter is based on the principle of volumetric measurement, and its core component is a pair of precision gears that mesh with each other. When the fluid enters the measuring chamber through the inlet of the flowmeter, it drives the gear to rotate, and for each revolution of the gear, a fixed volume of fluid (i.e. displacement) is discharged. The rotation of gears is transmitted to sensors through magnetic coupling or mechanical shafts, and the sensors convert the mechanical rotation into electrical signals (such as pulse signals) for output. By measuring the number of pulses per unit time, the instantaneous flow rate (instantaneous flow rate) can be calculated=pulse frequency/Pulse equivalent); The cumulative number of pulses corresponds to the cumulative flow rate (cumulative flow rate=Accumulated pulse count/Pulse equivalent)
structural characteristics
Compact design: small size, light weight, suitable for situations with limited installation space
High precision gears: using high-precision machined gears and measuring chambers to ensure measurement accuracy and repeatability
Low pressure loss: Optimized flow channel design reduces pressure loss during fluid passage and lowers system energy consumption
Multiple installation methods: Supports horizontal or vertical installation, and the inlet and outlet directions can be adjusted according to needs (note that the fluid flow direction should be consistent with the arrow markings)
Technical parameters and performance indicators
parameter item |
indicator |
remark |
nominal flow |
0.04 m³/h(40 L/h) |
Measuring range:4~40 L/h(Typical value) |
accuracy class |
±0.5% FS |
Reference conditions:20℃, specific viscosity fluid |
work pressure |
≤250 bar |
Depends on the material of the flange and shell |
Operating Temperature |
-20℃~100℃ |
Standard range, high temperature option can reach higher temperatures |
Fluid viscosity |
1~1000 cSt |
Viscosity exceeding the range may affect accuracy |
output signal |
Pulse output(F3) |
NPN/PNPCollector open circuit, pulse equivalent needs to be confirmed |
material |
Shell: Cast Iron/aluminium alloy; Gear: Steel |
Special materials are available for selection |
sealing material |
NBR(R1) |
Oil resistant, suitable for mineral oil fluids |
Application scenarios
VCA 0.04 K4 F3 R1 SHFlow meters, due to their small flow measurement capability and high-precision characteristics
Hydraulic system: Monitor the output flow rate of the hydraulic pump and the return oil flow rate of the oil cylinder to achieve system status monitoring and fault diagnosis
Lubrication system: Accurately measure the circulating flow rate of lubricating oil to ensure that all components of the equipment are fully lubricated
Industrial process control: used for quantitative transportation and measurement of low viscosity fluids on small and medium-sized chemical, food, pharmaceutical and other production lines
Test bench testing: precise measurement of flow characteristics of low flow fluids in laboratory or product testing
Installation and maintenance precautions
Installation key points
Flow direction confirmation: The flowmeter housing is marked with fluid flow direction arrows. When installing, it is necessary to ensure that it is consistent with the actual flow direction. Reverse installation may cause measurement errors or equipment damage
Pipeline cleaning: Before installation, impurities, welding slag, etc. inside the pipeline need to be cleaned to avoid damaging the gears or blocking the flow channel
Flange connection: Ensure that the flange sealing surface is clean, select suitable sealing gaskets (such as nitrile rubber gaskets), evenly tighten bolts to prevent leakage
Front and rear straight pipe sections: Although volumetric flow meters have lower requirements for front and rear straight pipe sections, it is recommended to retain them before the inlet5Straight pipe sections with a diameter greater than or equal to the diameter of the pipe, with no special requirements for the outlet
Maintenance Recommendations
Regular inspection: Check the flowmeter for leaks, abnormal noises, or abnormal vibrations, and observe whether the output signal is stable
Cleaning and lubrication: For fluids with high viscosity or impurities, it is necessary to regularly clean the filter (if installed) to prevent impurities from entering the flowmeter; According to usage, seals can be replaced regularly (such asOCircle)
Calibration: It is recommended to perform flow calibration once a year to ensure that the measurement accuracy meets the requirements. Calibration can be done through standard flow devices or by returning to the factory
Fault handling: If the output signal is abnormal or there is no signal, it may be a sensor fault, gear jamming, or circuit connection problem. Stop the machine for inspection and do not forcefully operate it
Selection suggestions
The flow range ensures that the actual operating flow rate is within the range of the flowmeter10%~100%Within the nominal flow range, avoid a decrease in accuracy at low flow rates or overload at high flow rates
Select appropriate materials (shell, gear) and sealing materials based on fluid characteristics such as viscosity, temperature, corrosiveness, etc
Working pressure and temperature: Confirm that the working pressure and temperature range of the flowmeter meet the requirements of the operating conditions, and choose the high temperature or high pressure option if necessary
Select pulse, analog signal or other types of output signals according to the requirements of the control system to ensure compatibility with the acquisition equipment
Installation conditions should consider installation space, pipeline size, and connection method (flange)/Thread, etc., select the matching installation option
GermanyStrengthflow meterVCA 0.04 K4 F3 R1 SHIt is a high-precision volumetric gear flowmeter designed for measuring small and medium flow rates. The various parameters in its model represent the series code, nominal flow rate, installation flange, output signal, sealing material, and additional functions. This product relies on high precision, high reliability, andcompactDesign, widely used in fields such as hydraulic, lubrication, and industrial process control. Users should pay attention to correct installation, regular maintenance, and make reasonable selections based on actual working conditions to ensure long-term stable operation and accurate measurement
VCA 0,04 FF R1
VCA 0,04 FF R1V
VCA 0,1 FE R1
VCA 0,2 FB R1
VCA 0,2 FB R1 /71
VCA 0,2 FB R1V /148
VCA 0,2 FB RIV
VCA 0,2 EB R1
VCA 0,2 FB P2V7213
VCA 0,04 K4 F3 R1 SH
VCA 0,04 K4 F3 R1 VH
VCA 0,1 K5 F3 R1 SH
VCA 0,2 U4 F4 R1 SH
VCA 0,2 U4 F4 R1 SM
VCA 0,2 U4 F4 R1 VH /148
VCA 0,2 U4 F4 R1 VH
VCA 0, 2 U4 E4 R1 SH
VCA 0,2 U4 F4 P2 VH /213
Spot German Kracht flowmeter VCA 0.04 K4 F3 R1 SH
Beinlich gear pump from Germany, E+H quality flowmeter from Germany, Atos proportional valve from Italy, Kracht flowmeter from Germany, VSE flowmeter from Germany
Rickmeier gear pump from Germany, MEISTER flow switch from Germany, Barksdale pressure switch from Germany, Burkert solenoid valve from Germany
German HYDAC measuring instrument, German Wandfluh valve, American LINCOLN distributor, American Asca ASCO solenoid valve, German TURCK proximity switch
German Beijiafu P+F encoder American DANFOSS solenoid valve American PARKER oil pump German Rexroth valve Italian AIGNEP pneumatic valve
SUN solar plug-in valve from the United States, BIERI micro pump from Germany, KIMO transmitter from Germany