Customer Inquiry for NaClO Flow Meter

A customer recently inquired about measuring the flow of sodium hypochlorite (NaClO) for an automation project. They need to unload a 20 cubic meter tanker of NaClO, with a concentration of 130 grams per liter, into a 1 cubic meter IBC tank. The system must be automated to stop the flow when the IBC tank is full. The customer is considering a flow meter, PLC, and an electric valve with a pulse output. They require a flow rate of 350 liters per minute, with normal temperature and a pressure of 3 bar. The pipeline material is PPR 63 mm SDR 7.4.

Why Measure Sodium Hypochlorite (NaClO) Flow?

Hypochlorous acid is an oxyacid of chlorine. It has a very pungent odor similar to that of chlorine gas. Sodium hypochlorite is widely used in water treatment, disinfection, and industrial applications. Accurate flow measurement is essential for:
• Ensuring proper dosing and concentration control
• Maintaining efficiency in automated systems
• Meeting trade measurement standards
• Preventing wastage and chemical overuse

Challenges in Measuring Sodium Hypochlorite Flow

Measuring NaClO flow rate presents several challenges for above inquiry from customer:

• Corrosiveness:

Sodium hypochlorite is a highly corrosive chemical that requires compatible materials for flow meters, carbon steel material flow meter is not suitable .Acid flow meters are needed.

• Need for High Accuracy Sodium Hypochlorite :

as customers’ applications, like trade measurement and precise dosing, require highly accurate flow meters, custody transfer flow meter is needed, however electromagnetic flow meter is not suitable for trade measurement.

• Fast Response Time for NaClO flow measuremnt :

The NaClO flow meter should quickly detect and respond to changes in flow conditions to prevent overfilling.

• Material Compatibility:

Many flow meters do not have materials that can withstand prolonged exposure to NaClO, for example liquid turbine flow meters, we normally have stainless steel material which is not suitable for NaClO.

Why Electromagnetic flow meter and Positive Displacement Flow Meters Are Not Suitable

• Electromagnetic Flow Meters: Although they are commonly used for measuring liquids, and it is used a lot for acid flow measurement, they are not ideal for high-precision applications such as trade measurement or precise dosing.
• Positive Displacement Flow Meters: These PD flow meters offer high accuracy but lack suitable materials that can withstand sodium hypochlorite’s corrosive nature, positive displacement flow meter is normally with carbon steel, cast iron or stainless steel 304 material.

Coriolis Flow Meters: The Best Choice for NaClO Flow Measurement

A Coriolis flow meter is the ideal solution for measuring sodium hypochlorite due to its numerous advantages:
• High Accuracy flow meter:
Coriolis flow meters provide the highest level of accuracy among all flow meters the accuracy can reach to 0.1%, making them perfect for trade measurement and precise dosing.
• Fast Response Time: Coriolis mass flow meters can quickly detect flow changes, ensuring reliable and efficient automation.
• Corrosion Resistance: By selecting a Hastelloy alloy for the wetted parts of Coriolis flow meter, the mass flow sensor can withstand the corrosive nature of sodium hypochlorite.
• No Moving Parts inside the Coriolis flow meter: This flow sensor design reduces maintenance needs and ensures long-term stability.
• Direct Mass Flow Measurement: Unlike volumetric flow meters, Coriolis meters measure Hypochlorous acid mass flow directly, which is beneficial in chemical dosing applications.
• Multi parameters measurement by only one sensor. Beside accurate flow rate and total flow measuring by Coriolis flow meter, this advanced mass flow transmitter can also detect NaClO density, temperature and concentration.

Technical Specifications for Coriolis Flow Meter for NaClO

• Various flow meter sensor sizes options, from 1/16 inches to 10 inches, normal request for NaClO flow measurement is 2 inches flow meters, DN65 NaClO flow meter, 3 inches Hypochlorous acid flow meter, 4 inches flow meter and so on.
• Flow rate: Various flow rate from 10 kg/h to 800 kg/hr, can total calibrate flow range according to users NaClO flow range.
• Accuracy: ±0.1%~ ±0.5%of the reading
• Pressure Rating: Various pressure rating option, standard 16 bar pressure, we can also provide 25 bar, 150lb, 300bar ,1000 psi or even high pressure.
• Temperature Range: -200°C to 350°C
• Material Options: Hastelloy for NaClO compatibility
• Output Options: Pulse, 4-20mA, Modbus, HART communication
• Application: Automated filling, trade measurement, and chemical dosing

Contact silverinstruments.com to get low cost NaClO Flow Meter price

For applications requiring high accuracy and corrosion resistance, a Coriolis flow meter is the best choice for sodium hypochlorite flow measurement. Its fast response time, direct mass flow measurement, and durable materials ensure long-term performance in demanding environments. Welcome to contact silverinstruments.com to get factory price for NaClO Flow Meter .