Technical Article

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

The second part of the fault analysis series addresses insufficient pressure in gear pumps, focusing on the cause of an inaccurate system design pressure value. A discrepancy between the designed and the actual calculated system pressure leads to a deviation in the pump's operational pressure. The analysis concludes that if the pump system is otherwise functioning correctly, the appropriate corrective action is to revise the design specifications based on the actual measured pressure value. 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

Suofu provides a guide for selecting metering pumps, centered on the critical distinction between reciprocating pumps (like diaphragm or piston pumps), which cause flow pulsation due to their stroke-based operation, and rotary gear pumps, which deliver smooth, nearly pulsation-free flow via continuous rotation. The core selection logic is framed by the application: batch metering tolerates some pulsation, whereas continuous metering (e.g., in real-time reactions) demands the stability of gear pumps to ensure accurate ratios and product quality. It highlights the advantages of Suofu's micro magnetic gear pumps—such as high precision, compact size, and leak-free design—as an ideal solution for precision and continuous flow applications. Read More

A Guide to Selecting High-Precision Coating Metering Pumps for Industry ApplicationsIn precision coating systems, the pump is one of the core components determining coating quality. Its task is to provide stable, pulse-free, and precisely metered fluid delivery. However, three major pain points expo Read More

Suofu details how its proprietary, specialty-enhanced PEEK material for gears and bearings enables the superior performance of its NP Series micro magnetic gear pumps. Comparative testing shows this material offers significantly lower wear rates and higher PV values than common PEEK grades, directly enabling a lifespan exceeding 20,000 hours and ±0.1% precision. This material innovation, validated by rigorous factory tests, underpins the pump's reliability, making it a preferred solution across over 60 demanding industries. Read More