Percision Micro Gear Pump & 0-6.00L/Min

The NP 51 Series offers precise flow control (0~6.00L/min) and consistent nominal flow rates, making it perfect for dosing, sampling, and metering applications where accuracy is critical.

Helical gears reduce operating noise to below 45 dB at 2000rpm, ideal for noise-sensitive environments like laboratories and medical facilities. The magnetic drive design eliminates leakage and enhances energy efficiency.

With pump body options including Hastelloy and PEEK, and O-ring materials like FKM/EPDM/PTFE, the pump resists corrosive chemicals, acids, and solvents, suitable for chemical fluid transfer.

Unlike many gear pumps, the NP 51 Series supports short-term dry running (1 hour at 1600rpm), offering flexibility in self-priming applications and emergency scenarios.

With a compact footprint (A dimension as low as 35mm), this pump fits into tight installations, ideal for integrated systems like smart boilers and new energy equipment.

Optimized for refrigeration cooling circuits, steam heaters, and so on, delivering precise fluid circulation for temperature control.

Perfect for automotive coating, industrial spraying, and adhesive dispensing, ensuring uniform fluid distribution and consistent coating quality.

Compatible with new energy applications (e.g., battery cooling) and SCR/DPF systems, handling urea and other emission-reducing fluids reliably.

Ideal for water treatment, pharmaceutical, and chemical industries, providing accurate sampling and dosing of corrosive or high-purity fluids.

Serves as a critical component in fire protection systems and smart boilers, delivering stable fluid flow for safety and efficiency.

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Use a 400 mesh or finer filter at the inlet to protect gears from contamination. Regularly clean or replace the filter to maintain flow efficiency and prevent pump damage.

While short-term dry running is allowed, avoid prolonged dry operation at speeds exceeding 1500rpm, as this may wear bearings and gears prematurely.

Ensure alignment between pipelines and pump inlets/outlets to reduce stress on the pump body. Use flexible connectors to absorb vibration and prevent leakage.

Monitor operating temperature and pressure to stay within the pump's rated range (-120℃ to150℃, 20 to150 bar). Avoid sudden pressure spikes, which can damage the magnetic drive system.

Use thread sealants compatible with the fluid type to secure NPT1/4'' connections. Avoid over-tightening, as this can deform threads and cause leaks in low-pressure applications.