SI-10L Laminar Differential Pressure Liquid Flow Controller/Meter

The SI-10L series liquid flow controller/meter can control the flow rate of liquids, displaying both volumetric and mass flow rates. It can quickly and accurately measure and control the volumetric/mass flow rate of process liquids. It employs a customized high-speed proportional control valve with a unique vent for easy air removal.

The SI-10L series liquid flow controller/meter utilizes patented internally compensated laminar differential pressure technology, widely used for precise continuous measurement and control of cumulative or instantaneous flow rates in pipelines. Applicable media include: water, fragrances, alcohols, benzene, and a range of non-corrosive chemical solvents.

★★★★★

  • Short delivery time
  • Better price
  • Customizable parameters

Features

  • Supports micro-flow measurement and control for various liquids;
  • High precision with temperature control;
  • Customizable for high temperatures with IP65 protection;
  • Integrated multifunctional digital display allows users to control setpoints and PID valve adjustments solely via screen buttons;
  • Features open analog I/O and RS-485 digital communication;
  • Contains no moving parts or thermal elements internally, passes vibration testing, and exhibits no orientation sensitivity during installation;
  • We offer comprehensive user support, including technical consultation, expedited device calibration services, anda conditional lifetime warranty;
  • Delivers 1% accuracy, 0.2% repeatability, and control response times under 200 milliseconds to ensure reliable operation of process fluids.

Specifications

SeriesSI-10L
ModelLCLMMCMMBCBM
Measuring Range0-（2,5,10…1000）SCCM0-（1,2,3…5)SLM0-（5,6,10…20)SLM
Accuracy±1.0%F.S
Repeatability±1%F.S
Zero Drift & Full Scale Drift0.02% F.S/ ºC/Atm
Operating Differential Pressure0.1~0.5MPa (specify when ordering)
Range Ratio50:1100:150:1100:150:1100:1
Typical Response Time200 milliseconds (adjustable)
Analog Quantity0～5V、4～20mA
Digital QuantityRS232/485, MODBUS protocol
Power Supply24VDC
Operating Temperature+10~+50℃
Operating Pressure Drop<0.01Mpa
Operating Pressure3 MPa / 10 MPa (flow meter only)
Electrical ConnectionDB15 hole
Protection ClassIP40
Leakage Rate1×10-9Pa m³/S
ValveValve normally closed/Valve normally closed/Valve normally closed/
Base MaterialStainless steel
Sealing MaterialFluororubber, nitrile rubber, EPDM, perfluoroelastomer
Body ThreadG3/8 internal threadG1/2 internal thread
ConnectorFoldings, ferrules, quick-connect fittings, VCRs, flanges, etc.
  • SI-10L-LC Liquid Flow Controller Low-range size
    SI-10L-LC Liquid Flow Controller Low-range size
  • SI-10L-MC Liquid Flow Controller Mid-range Dimensions
    SI-10L-MC Liquid Flow Controller Mid-range Dimensions
  • SI-10L-BC Liquid Flow Controller Large Range Dimensions
    SI-10L-BC Liquid Flow Controller Large Range Dimensions

Differential Pressure Liquid Flow Controller/Meter Applications

In practical applications, the SI-10L Laminar Differential Pressure Liquid Flow Controller/Meter is widely used in various fields such as chemical, petroleum, food, and pharmaceutical industries.

In chemical production, liquid mass flow controllers are crucial equipment for ensuring the smooth progress of reaction processes. In chemical reactions, the proportions of various raw materials need precise control; otherwise, reaction efficiency and product quality will be affected. For example, in some polymerization reactions, the amount of different monomers added must strictly adhere to the formulation requirements. Liquid mass flow controllers can accurately control the monomer flow rate in real time, ensuring the reaction proceeds under optimal conditions and improving product purity and yield.

Liquid-mass-flow-controller-application

The pharmaceutical industry has even stricter requirements for liquid mass flow control. In the production of pharmaceutical formulations, precise control of liquid flow rate is required in all stages, from dissolving and preparing the active pharmaceutical ingredient to filling. Liquid mass flow controllers can ensure stable drug solution concentrations, avoiding inaccurate drug dosages due to flow fluctuations, thereby ensuring patient medication safety.

In scientific research experiments, liquid mass flow controllers ensure the accuracy and repeatability of experimental results. In research fields such as chemical analysis and biological experiments, precise control of reagent dosage is often required. Liquid mass flow controllers can meet researchers’ needs for high-precision flow control, helping them obtain reliable experimental data.

Furthermore, they offer advantages such as a wide measurement range, good stability, and ease of maintenance, meeting measurement requirements under various operating conditions.

Technical Support

A liquid flow controller is a device used to accurately measure and regulate the flow rate of liquids. It typically consists of a flow meter, a regulator, and a controller, achieving automatic flow control through real-time monitoring and feedback.

A liquid flow sensor is a device that measures the flow rate of a liquid. They can operate on different principles, such as Coriolis mass flow sensors, turbine flow sensors, and electromagnetic flow sensors.

Methods for controlling fluid flow include using devices such as valves, pumps, flow meters, and flow controllers, combined with automation technology to achieve precise control.

The function of a flow controller is to ensure a constant flow rate of fluid in a pipeline to meet the needs of process production, while reducing waste and costs. Flow controllers are widely used in industries such as chemical, petroleum, pharmaceutical, and food to meet the flow rate requirements of different fluids.

Device for regulating liquid flow includes flow control valves and flow controllers. Flow controllers are indispensable key equipment in modern industrial automation and process control systems. They ensure stable and efficient operation of the production process by precisely regulating the flow rate of liquid in pipes or channels.

Liquid flow controllers can be based on the thermal principle, the Coriolis principle, or the laminar differential pressure principle.

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The Sino-Inst liquid mass flow controller also boasts numerous advantages. It offers rapid response, adjusting to flow rate changes quickly. Furthermore, it can be connected to computer control systems for automated control and remote monitoring, improving production efficiency and management.

The SI-10L series liquid flow controllers/meters are suitable for university and research institute experiments, manufacturing processes, food analysis, and analytical testing. If you require liquid flow measurement and control, please feel free to contact our sales engineers!

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