CX-S-6.0-88 Magnetic Gear Metering Pump for KOH Solution

When transferring potassium hydroxide (KOH) aqueous solution, two challenges always come first: corrosion resistance and leak prevention. A standard centrifugal pump with mechanical seals often fails in such conditions — seals degrade, leaks happen, and safety becomes a real concern.

That’s why more engineers are turning to magnetic drive gear pumps for alkaline chemical dosing. One model that stands out is the CX-S-6.0-88 from a trusted manufacturer — but before diving into the pump itself, let’s look at what the application demands.

The Application at a Glance

• Medium: KOH water solution

• Flow rate needed: 1 – 10 L/min

• Operating pressure: 0.5 MPa

• Fluid temperature: 45°C

• Power supply: 380VAC, 50/60Hz

• Motor requirement: Class II explosion-proof + variable frequency

These parameters are typical for chemical dosing systems, pilot plants, and small-scale alkaline processing lines. The pump must be accurate, chemically compatible, and safe for potentially hazardous environments.

Why the CX-S-6.0-88 Magnetic Gear Metering Pump?

The CX-S-6.0-88 is a magnetic drive gear metering pump specifically suited for this duty. Its design eliminates dynamic seals, directly addressing the leak issue. Let’s break down why it works.

1. Corrosion-Resistant Wetted Materials

• Gear: PEEK — excellent resistance to strong alkalis like KOH, even at 45°C.

• Pump body: SS316 — reliable against caustic solutions and easy to maintain.

2. Precision Displacement

With 6.0 mL per revolution, the pump delivers consistent, pulse-free flow. Combined with a variable frequency motor, the flow can be smoothly adjusted across the 1–10 L/min range without losing accuracy.

3. Magnetic Drive = No Shaft Seal Leakage

Magnetic coupling transfers torque from the motor to the gear rotor through a containment shell. There is no dynamic seal, which means zero leakage along the shaft — a critical advantage for KOH service.

4. Built for Hazardous Areas

The included Class II explosion-proof variable frequency motor (750W, 2900 RPM, 380VAC) makes the pump suitable for environments with combustible dust or gases.

Complete Technical Specifications

Key Benefits for Your KOH Process

✅ Leak-free operation — magnetic drive eliminates seal wear and fluid loss.
✅ Chemical compatibility — PEEK gear and SS316 body resist KOH corrosion.
✅ Accurate metering — 6.0 mL/R displacement ensures precise dosing.
✅ Adjustable flow — variable frequency drive allows 1–10 L/min control.
✅ Safe for hazardous areas — Class II explosion-proof motor included.
✅ Compact, modular design — #88 magnetic coupling and G3/4 ports for easy integration