Inlet Pipe: Should be short and straight, with a diameter not smaller than the pump port. Liquid flow velocity should preferably not exceed 1.5 m/s.
Outlet Pipe: Appropriately increasing the pipe diameter can save energy. The pipeline should be equipped with a safety valve to prevent damage from dead-head pressure.

Dry running refers to the pump operating without liquid intake. Our NP Series pumps utilize special self-lubricating materials and possess excellent dry-running tolerance (e.g., the NP039 model has passed a 100-hour continuous dry run test). However, prolonged dry running should still be avoided. Each series has maximum allowable dry running speeds and time limits.

Options include: AC motors (fixed speed/variable frequency/explosion-proof), Brushless DC (BLDC) motors (recommended for precise speed control), Stepper/Servo motors (for extremely high precision metering). We will calculate the required power and match a motor based on your operating conditions (flow, pressure, viscosity).

Flow Rate: Primarily achieved by adjusting the motor speed.
Pressure: The pump does not directly "set" the pressure; pressure is determined by the system load. To stabilize pressure, a pressure relief/stabilizing valve can be installed at the outlet.

Yes. Because gear pumps lack built-in check valves. If prevention is needed, an external check valve can be installed at the pump outlet.

Decoupling occurs when the pump load is excessive or the gears jam abnormally, exceeding the torque capacity of the magnetic coupling. This is accompanied by noise. The motor should be stopped immediately to troubleshoot the fault.

Yes, but the flow rate will be lower in reverse compared to forward operation, and the pressure must not exceed 1 bar. Continuous operation in reverse is not recommended.

Wearable parts include: Drive/Driven gear shafts, bearings, internal magnetic rotor, PTFE seals. For critical processes, it is recommended to have one operating unit and one standby unit, or purchase a set of wearable spare parts as an emergency solution. Our precision micro gear pumps feature a modular design for quick and easy replacement of wearable parts.