Kao Lu PPV Proportional Pinch Valve — Non-Contact Flow & Pressure Control for Sterile and Corrosive Media

Proportional pinch valve

The Kao Lu PPV Series Proportional Pinch Valve delivers precise, fully non-contact flow and pressure control by proportionally pinching flexible tubing. Because the media only ever touches the inside of the tube — never the valve mechanism — the PPV is the ideal solution for sterile, ultra-pure, corrosive, and abrasive fluids where contamination is unacceptable.

Backed by KaoLu's 46+ years of proportional valve expertise and honored with the 2025 German Design Award, the PPV Series brings laboratory-grade precision to fluid handling.

Key Advantages
True Non-Contact Control The media flows only through the tube. No valve seat, no diaphragm, no wetted metal parts — eliminating contamination, clogging, and corrosion risks entirely. Tube replacement takes seconds.

Stepper-Motor Proportional Precision Driven by a high-resolution stepper motor at 0.0127 mm/step, the PPV achieves fine, repeatable proportional control of flow and pressure — far beyond simple on/off pinch valves.

Wide Application Range

Tube O.D.: 4 mm up to 1.5 inch
Pinch force: up to 50 kgF (PPV-930 high-torque series)
Media pressure: up to 6 bar
Digital-Ready Integration Supports 0-10V / 4-20mA analog signals and RS485 (Modbus) digital control, enabling remote operation up to 800 m — ready for modern automated and Industry 4.0 systems.

Product Range
Series Tube O.D. Application
PPV-04 / 06 / 08 (Mini) 4 / 6 / 8 mm Analytical instruments, dosing, lab automation
PPV-930 (High-Torque) up to 1.5" Industrial dosing, chemical & abrasive media

Typical Applications
Pharmaceutical & biotech dosing and dispensing
Blood handling and analysis
Chemical mixing with corrosive or abrasive media
Single-use bioprocessing
Analytical and laboratory instruments
Vending and food & beverage equipment

Why KaoLu
100% Made in Taiwan
46+ years of proportional valve engineering
Winner, German Design Award 2025
Full customization: tube size, control signal, and materials

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