Product Category

By Media
Flow Meter

What is flow meter for corrosive liquids?

In industrial production, many substances can be slightly or highly corrosive, such as Hydrochloric Acid (HCl), Sulfuric Acid (H₂SO₄), it’s essential to measure the flow rate of these aggressive liquids accurately. To do this, we use special flow meters designed for corrosive media, we often require HCL flow meter, sulfuric acid flow meter, Acetic Acid (CH₃COOH) flow meter, Sodium Hydroxide (NaOH) flow meter, ammonium hydroxide (NH₄OH) flow meters and so on. Two common types of these corrosive liquid flow meters are magnetic flow meters and rotameters.

Magnetic Flow Meters for Corrosive Liquids

Magnetic flow meters (or mag flow meters) are ideal for measuring the flow of corrosive liquids. They can be lined with materials like PTFE (Teflon) or PFA, which are highly resistant to corrosion. The electrodes, which are in contact with the fluid, can be made from materials like Hastelloy alloy, platinum-rhodium, tantalum, or titanium, making them suitable for most corrosive liquid flow measurement. These corrosive liquid flow meters can handle various aggressive liquids, including hydrochloric acid, sulfuric acid, hydrofluoric acid, chlorine water, hydrogen peroxide, and caustic soda. The outer housing is typically made from stainless steel 304 or 316, providing additional durability in corrosive environments.

**Advantages of Magnetic Flow Meters for aggressive liquid flow measurement:**

- Measure volumetric flow in-line
- Customizable sensor linings and electrodes for specific corrosive liquids
- No obstructions in the measuring pipe, resulting in no additional pressure loss
- No moving parts, leading to a long sensor lifespan
- Suitable for slurry flow measurement
- Can measure both forward and reverse flow
- Offer various outputs for corrosive liquid flow trnasmitters: current, pulse, digital communication (HART, Profibus-DP) 
- High measurement accuracy, unaffected by changes in fluid density, viscosity, temperature, pressure, and conductivity

Rotameters for Corrosive Liquids

Rotameters, a type of variable area flow meter, are also used for measuring corrosive liquids. We provide PTFE-lined rotameters that can handle these aggressive fluids. Traditional rotameters are analog and show the instantaneous flow without needing a power supply. We also offer rotameters with transmitters that display both the instantaneous and cumulative flow of corrosive media. These advanced rotameters support outputs like 4-20mA, pulse, Hart, and Modbus.

Benefits of Rotameters:**

- Simple design with PTFE lining for corrosion resistance
- Analog models show real-time flow without power
-Rotameters with transmitters display cumulative flow
- Support various output options for integration with other systems
In summary, both magnetic flow meters and rotameters are excellent choices for measuring the flow of corrosive liquids, each offering unique benefits depending on the specific requirements of your application.
  • Acid resistant flow metersAcid resistant flow meters2019/01/13Flow meters recommended for use with acids or chemically aggressive liquids. Silver Automation Instruments supplies acid resistant flow meters to measure the flow of strong hot corrosive acids like su...view
  • Chemical acid flow meterChemical acid flow meter2023/10/05Electromagnetic Flow Meters for Chemical Acid Measurement: Corrosion-Resistant Sensor Material SelectionIn the realm of chemical industry, accurate measurement of chemical acids like sulfuric acid, hy...view
  • Turbine Flow meter for corrosive liquidTurbine Flow meter for corrosive liquid2023/03/17What is turbine flow meter for corrosive liquid?A turbine flow meter is a type of flow meter that measures the rate of fluid flow by utilizing a turbine wheel that rotates as the fluid passes through ...view
  • Corrosive liquid flow meterCorrosive liquid flow meter2019/08/02In the industrial production process, many media are slightly or strong corrosive. We need to measure the flow rate of these aggressive fluids. How to choose the flow instrumentation for measuring cor...view
  • Metal tube rotameter for corrosive liquidMetal tube rotameter for corrosive liquid2019/06/08Teflon (PTFE) lined metal tube rotameter/ variable area flow meter is suitable for aggressive fluids measurement. It is a traditional and classic flow metering technology which is used in many applica...view
  • Electromagnetic flow meter for corrosive liquidElectromagnetic flow meter for corrosive liquid2019/08/03By choosing different liners and different electrodes materials, Electromagnetic flow meters can measure corrosive strong acids or strong alkali liquids. Electromagnetic flowmeter is an inductive inst...view Protection Status