China ​Metering Pumps Manufacturer, Supplier, Factory

For more than 20 years, Shanghai Crowns Pump Manufacturing Co., Ltd. has expanded its professional prowess beyond fire pumps to become a leading provider of metering pumps (also known as dosing pumps)—a product line built on the foundation of precision, reliability, and adaptability. As a top-tier pump manufacturer and supplier in China, we have refined our metering pump technology through continuous innovation, drawing on feedback from customers across industries and staying ahead of evolving market demands. Our metering pumps combine meticulous craftsmanship with cost-effectiveness: we use high-quality materials and advanced manufacturing techniques to ensure superior performance, while offering competitive wholesale pricing that makes precision fluid dosing accessible to businesses in both emerging and established markets.

The defining feature of our metering pumps is their exceptional dosing accuracy—a critical requirement for processes where even the smallest deviation in fluid flow can impact product quality, process efficiency, or safety. Engineered to deliver flow rates with an accuracy of ±0.5% or better (and up to ±0.1% for high-precision models), our metering pumps are designed to maintain consistent dosing performance regardless of fluctuations in system pressure, fluid viscosity, or temperature. This level of precision makes them indispensable in a wide range of critical applications: in water and wastewater treatment plants, they precisely inject chemicals such as chlorine (for disinfection), coagulants (for sedimentation), and pH adjusters (for water quality control), ensuring compliance with environmental regulations and protecting public health. In the oil & gas industry, they deliver precise amounts of additives—such as corrosion inhibitors, demulsifiers, and lubricants—to pipelines and processing equipment, enhancing operational efficiency and extending the lifespan of critical infrastructure. In the pharmaceutical and biotech sectors, our metering pumps handle the precise mixing of active pharmaceutical ingredients (APIs) and excipients, where dosage accuracy directly impacts the efficacy and safety of medical products. Even in laboratory settings, our compact metering pumps are used for small-volume, high-precision dosing in research and development projects.

To meet the diverse needs of these industries, our metering pumps are designed with a range of flexible features and customizable options. Flow rate adjustment is intuitive and versatile: users can choose from manual adjustment (via a precision knob for simple, on-site fine-tuning), electric adjustment (for remote control via a digital interface), or PLC (Programmable Logic Controller) integration (enabling seamless connection to automated process systems, ideal for large-scale industrial operations). This flexibility allows our metering pumps to adapt to dynamic process requirements—whether a customer needs to increase dosing volume during peak production hours or reduce it for maintenance, the pump can be adjusted quickly and accurately without disrupting operations.

Durability and chemical resistance are also key priorities in our metering pump design. The wetted components (which come into direct contact with the fluid) are constructed from materials carefully selected for their compatibility with different media: SUS316L stainless steel is used for general-purpose chemical dosing, while PTFE-lined components are employed for handling highly corrosive fluids (such as strong acids or alkalis). For applications involving ultra-pure fluids (like in semiconductor manufacturing), we offer metering pumps with ceramic or Hastelloy parts to prevent contamination. Additionally, our metering pumps are equipped with built-in safety features to protect both the equipment and the operator: overpressure protection valves automatically release excess pressure to prevent pump damage, while dry-run protection sensors detect when the pump is operating without fluid and shut it down to avoid mechanical wear. These features not only extend the service life of the pump but also minimize the risk of accidents and downtime.

Quality control is a rigorous process for our metering pumps, mirroring the high standards we apply to all our products. Every pump undergoes a series of comprehensive tests during production, including accuracy testing (to verify flow rate precision across the entire operating range), pressure testing (to ensure leak-proof performance under maximum operating pressure), and endurance testing (to simulate long-term operation and identify potential issues). We also adhere to strict compliance standards, holding certifications such as CCCF, ISO 9001:2015, ISO 14001:2015, and ISO 45001:2018. These certifications ensure that our metering pumps meet global benchmarks for quality, safety, and environmental responsibility, giving customers confidence that they are investing in a product that will perform reliably and responsibly.

Our metering pumps are a key part of our global product portfolio, exported to more than 20 countries across Asia, Europe, Africa, and the Americas. We recognize that every customer’s application is unique—for example, a wastewater treatment plant may need a metering pump that can handle high-solids fluid, while a cosmetic manufacturer may require a pump that meets FDA standards for food-grade materials. To address these specific needs, our engineering team works closely with customers to develop tailored solutions: we analyze their fluid characteristics (viscosity, corrosiveness, temperature), process requirements (flow rate range, pressure levels), and installation constraints (space, power supply), then modify pump designs—such as adjusting the pump’s stroke length, changing the material of wetted parts, or adding custom control features—to ensure perfect alignment with their needs.

This commitment to precision, durability, and customization has made Shanghai Crowns Pump Manufacturing Co., Ltd. a trusted partner for businesses seeking reliable metering pump solutions. As we continue to innovate—exploring new materials, improving energy efficiency, and integrating smart technologies (such as IoT-enabled monitoring for real-time performance tracking)—we remain focused on empowering our customers to optimize their processes, reduce costs, and achieve their operational goals with confidence.