Gear Pump For 5–7% Sodium Hypochlorite

Performance Parameters

- Medium Viscosity: ≈1–2 cP (low-viscosity, water-like)
- Medium Temperature: ≤40°C (higher temperatures accelerate decomposition, increase gas generation, and hasten the aging of seals)
- Flow Rate Range: 0.1–1000 L/h, with servo-controlled speed adjustment
- Metering Accuracy: ±1% to ±3%
- Maximum Output Pressure: ≤10 bar

Product Advantages

1. Excellent Wear Resistance: Made from a modified PEEK composite material, this component offers superior self-lubricating properties and withstands the mild abrasive effect of salt crystals precipitated from sodium hypochlorite; its service life under continuous operation exceeds that of gears made from pure PEEK.
2. Steady, Pulsation-Free Flow: Utilizing a gear-based positive displacement metering mechanism, it eliminates the pulsations typical of diaphragm pumps, ensuring more stable control of residual chlorine levels.
3. Magnetic Sealing: Designed without shaft seals, it prevents the escape of chlorine gas and protects personnel from chemical burns, making it ideal for use in enclosed dosing rooms.
4. 24-Hour Continuous Dosing for Water Treatment: Suitable for the uninterrupted, continuous injection of disinfectants in municipal wastewater treatment, reclaimed water systems, and circulating water systems.

Typical Applications

- Dosing of neat sodium hypochlorite solution for the disinfection of municipal wastewater and reclaimed water
- Controlled, stable dosing of chlorine-based agents for circulating cooling water and swimming pool water
- Precise dosing for exhaust gas scrubbing towers (using NaClO for the oxidative removal of hydrogen sulfide)
- Accurate addition of chemical agents for industrial cleaning lines and disinfection processes

FAQ:

Q1: Can a 316 [stainless steel] pump head be used?
A1: It is not recommended. The combination of chloride ions and strong oxidizing conditions will cause pitting corrosion; furthermore, metal ions will catalyze the decomposition of sodium hypochlorite, leading to significant loss of the chemical agent.

Q2: What is the maximum allowable temperature?
A2: It is recommended to keep the temperature at ≤40°C. High temperatures accelerate the decomposition of sodium hypochlorite and the aging of seals.

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