KOH magnetic gear metering pump
The Ideal Choice for Precise Potassium Hydroxide Solution Transfer: CX-S-6.0-88 Magnetic
Gear Metering Pump
In industries such as chemical processing, water treatment, new energy, and pharmaceuticals, potassium hydroxide aqueous solution is a commonly used strong alkaline chemical solvent. When transferring such media, the equipment must not only offer excellent corrosion resistance but also ensure precise flow control and absolutely leak-free operation. Recently, we provided a tailored solution for one of our clients, the CX-S-6.0-88 magnetic gear metering pump, which successfully met their stringent process requirements.
Client Operating Conditions Review
The specific transfer parameters from this client were as follows:
Medium: Potassium hydroxide aqueous solution
Displacement: 6.0 mL/R
Flow rate range: 1 to 10 L/min
Operating pressure: 0.5 MPa
Medium temperature: 45 degrees Celsius
Port connection: G3/4
Drive configuration: Explosion-proof variable frequency motor, 380VAC, 750W, 2900R/min
Brand requirement: Wenzhou Nanyang motor

Why Choose the CX-S-6.0-88 Magnetic Gear Metering Pump?
Given the corrosive and crystallization-prone nature of potassium hydroxide solution, along with the site requirements for explosion protection and variable speed control, the CX-S-6.0-88 model delivers significant technical advantages.
First, superior corrosion-resistant material combination.
Potassium hydroxide is a strong alkali and demands high material standards for pump construction. The CX-S-6.0-88 features an SS316 stainless steel pump body, which offers outstanding resistance to alkaline corrosion. The gears are manufactured from PEEK engineering plastic. PEEK not only withstands high temperatures and chemical attack but also maintains excellent dimensional stability, making it ideal for handling 45-degree Celsius KOH solution while effectively resisting wear from abrasive crystals that tend to form in alkaline media.
Second, magnetic drive for leak-free operation.
The pump employs a magnetic coupling drive design, eliminating the need for traditional mechanical seals. This static-sealing configuration ensures completely leak-free operation, preventing costly loss of potassium hydroxide solution while significantly enhancing operator safety and maintaining a clean working environment. It is particularly well-suited for handling corrosive and hazardous chemical fluids.
Third, precise flow control.
As a positive-displacement gear pump, the CX-S-6.0-88 delivers stable, pulse-free flow output. When paired with a variable frequency drive, it enables accurate flow adjustment across the 1 to 10 L/min range, ensuring formulation accuracy and consistent production quality in chemical processes.
Fourth, explosion-proof and drive configuration.
The pump is equipped with a Wenzhou Nanyang brand secondary explosion-proof variable frequency motor at 750W, 380VAC, fully compliant with safety regulations for potentially flammable or explosive atmospheres. Additionally, the 88 external magnetic assembly and connecting components ensure efficient and reliable power transmission.
Application Prospects
The CX-S-6.0-88 magnetic gear metering pump is not only ideal for potassium hydroxide solution transfer but also well-suited for dosing other acids, alkalis, organic solvents, and fine chemicals. It is a reliable choice for fine chemical manufacturing, pharmaceutical intermediate production, new energy electrolyte transfer, and other demanding applications.
If you are seeking a high-precision, leak-proof solution for transferring corrosive chemical solutions, the CX-S series magnetic
gear metering pump is your dependable partner. Feel free to contact us for more technical support and product information.
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