Ark Electric & Mechanical Co., Ltd.
About
Ark Electric & Mechanical Co., Ltd., operating under the NEWDOSE brand, is a Chinese manufacturer founded in 2001 and headquartered in Beijing, specializing in precision diaphragm dosing pumps for chemical metering applications. With over two decades of experience and a manufacturing facility of 1,000–3,000 square meters, NEWDOSE produces four core dosing pump platforms. The D Type electromagnetic solenoid dosing pump covers 1–55 L/h at pressures up to 20 bar with ±1% accuracy, available in DFD, DP, DM, and DC sub-series. The Evodose stepper motor dosing pump delivers 1–100 L/h at 1–20 bar with low pulsation and reduced noise. The ND Type mechanical motor diaphragm dosing pump handles high-capacity applications from 8 to 6,000 L/h at 3–30 bar, offered in NDJ, NDWS, and NDWL sub-series with optional intelligent electric stroke adjusters. The Ecodose gear-motor dosing pump covers 9–150 L/h at 3–10 bar with simple switch-button control. All NEWDOSE pumps feature pure PTFE diaphragms backed by a 5-year warranty and PTFE valve seats for corrosion resistance rated to 3 MPa. Specialty configurations target chlorine dosing, sulfuric acid metering, epoxy injection, saltwater dosing, and desalination applications. The company also produces complete dosing packages, controllers, pulsation dampeners (≥90% pulsation reduction), and electric stroke adjusters accepting 4–20mA analog signals. Industries served include wastewater treatment, chemical processing, pulp and paper, surface treatment, petrochemical, food and beverage, power generation, metallurgy, pharmaceutical, and desalination.
Key Products
Electromagnetically driven metering pump with LCD display for small-capacity dosing (1–55 L/h, 0–20 bar), including DFD, DP, DM, and DC sub-series.
Micro-motor driven precision dosing pump (1–18 L/h) with low pulsation and reduced noise for accurate chemical injection.
Spring-return mechanical diaphragm dosing pump for high-capacity applications (8–6,000 L/h, 3–30 bar) including NDJ, NDWS, and NDWL sub-series.
Economical gear-motor dosing pump (9–150 L/h, 3–10 bar) with simple switch-button control and optional float switch for cost-sensitive applications.
Device receiving 4–20mA analog signals to remotely or manually adjust dosing pump displacement for automated process control.
Complete integrated dosing systems combining pumps, tanks, controls, and accessories for turnkey chemical dosing applications.
Accessories that reduce at least 90% of pulsation to stabilize flow and protect pump heads in dosing systems.
Specialized dosing pumps designed for safe and accurate chlorine injection in water treatment applications.
Corrosion-resistant metering pumps for precise sulfuric acid dosing in industrial processes.
Dosing pumps engineered for chemical injection in desalination plants handling saline environments.
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