RV dosing screw pump

Compact positive-displacement screw pump engineered for precision metering and small‑flow dosing of viscous, particulate or shear‑sensitive liquids. The RV series mini screw pump uses a single‑screw rotor running inside a stator profile to form continuous sealed cavities that convey liquid from suction to discharge at a constant volume per revolution — delivering steady, pulse‑free flow that is directly proportional to shaft speed.

Key features

• Positive displacement single‑screw design for accurate, repeatable metering and dosing
• Optimized for small flow rates with low axial profile and low torque requirements
• Excellent suction and self‑priming capability; stable flow even with high viscosity and concentrated media
• Handles high‑solid and abrasive slurries, shear‑sensitive fluids and coatings with minimal product degradation
• Simple, compact construction for easy installation, low maintenance and portable mounting
• Compatible with frequency inverters and servo motor drives for precise speed/flow control
• Low energy consumption and consistent volumetric output (flow proportional to rotation speed)

Typical applications

• Metering and dispensing modules, laboratory dosing and packaging systems
• Battery and electronics coatings (e.g., lithium battery slurry coating, conductive paints)
• Automotive sealing and adhesive dispensing
• Chemical, pharmaceutical and cosmetic dosing lines
• Sewage and water treatment chemical dosing

Technical notes

• Flow is linear with rotational speed; use VFD or servo control for closed‑loop dosing and automated systems
• Designed for continuous, accurate micro‑dosing or small batch applications where stable, low‑pulsation delivery is required
• Available as part of the RV series (example model RV12.1). Consult supplier datasheets for options, port sizes, and material compatibilities when selecting for abrasive or chemically aggressive media.

Benefits for B2B buyers

• Improves process control and repeatability in automated dosing and coating systems
• Reduces downtime and maintenance costs due to robust, simple mechanical design
• Flexible drive and control integration for OEM machine builders and system integrators