The selection of pipe diameters in micro gear pump systems requires specific considerations for low flow rates. For the outlet, a flow velocity of 1-3 m/s is recommended to balance pressure drop and cost. Inlet conditions are more critical due to atmospheric pressure limitations, necessitating a lower velocity of 0.5-1.5 m/s to ensure proper fluid intake and prevent issues like cavitation, especially with volatile liquids. Pipe diameter should be adjusted based on line length, fittings, and fluid viscosity to optimize overall system performance and reliability. Read More

When transporting low-viscosity or poorly lubricating liquids like water or solvents, gear pumps require materials with excellent self-lubricating properties to prevent gear seizure. Plastic gears, particularly those made from engineered materials like reinforced PEEK, are often more suitable than metal for such applications due to their inherent self-lubrication, good PV (pressure-velocity) value, and corrosion resistance. For instance, the NP series micro magnetic gear pumps from Shanghai Super Fluid Co., Ltd. (Suofu) utilize such PEEK gears and bearings, offering a reliable solution for small-flow, low-to-medium pressure pumping scenarios where rigidity, precision, and durability are needed. Read More

On September 18-19, 2025, Suofu made a grand appearance at the "2025 China International Liquid Cooling Technology Innovation Development Forum," showcasing its NP series of micro gear pumps.During the forum's prestigious award Read More

Sanming, Fujian, China – December 8, 2024 – The foundation-laying ceremony for Suofu's intelligent micro-pump production base project was grandly held in the Sanming Read More

A technical guide details the disassembly and assembly procedures for the NP98 series of micro magnetic gear pumps, specifically the NP1700 model. It lists the pump's performance specifications, such as its flow rate, accuracy, and operational limits. The core of the guide is a step-by-step sequence for dismantling and reassembling the pump unit, which includes handling the magnetic drive components, gears, and pump body sections. The document also functions as promotional material for the manufacturer, Shanghai Suofu (Shanghai Super Fluid Co., Ltd.), presenting the pump's applications in the Chinese market. Read More

A common cause of insufficient pressure in gear pump systems is an incorrectly set pump outlet safety valve. If the valve's opening pressure is configured too low, it will activate prematurely, diverting flow through its bypass once system pressure reaches this low threshold. This action effectively caps the maximum achievable pressure at the pump's outlet to the safety valve's set point, which is below the system's required working pressure. To prevent this issue, standard practice dictates setting the safety valve's pressure approximately 1.2 to 1.3 times higher than the intended operating pressure of the system. This analysis is part of a series examining various root causes for pressure deficiencies in gear pumps. Read More