Chemical
Corrosion-Resistant Fluid Control For Chemical Processing
Built on stainless steel wetted paths, FFKM/FKM sealing and stepper-driven proportional control, we deliver precise and chemically compatible solutions for dosing, blending, vacuum and pressure processes in chemical plants and laboratories. Our solutions improve dosing accuracy while extending equipment service life in aggressive media.
01 SolutionWhy Our Chemical Solutions
Chemical processes combine corrosive media, wide pressure ranges and tight dosing tolerances. Many electric valves cannot withstand acids, while ball and butterfly valves are too large and too slow for ppm-level dosing. Since 1980, Kao Lu has designed and built its proportional valves in-house in Taiwan, covering software, hardware and firmware, so every solution can be matched to the media, pressure and control signal of your process.
Engineered for Aggressive Media, Built for Accuracy
Our corrosion-resistant electric needle valves combine stainless steel wetted parts with FFKM sealing, a -1 to 7 bar pressure range, 0.1–2,000 L/min flow capability, ±0.1% F.S. repeatability and a 0.8 s full-stroke response. Together with PVDF push-in joints (PN 16, 0–120 °C), stainless steel solenoid valves for chemical and aggressive fluids, and our online Chemical Compatibility Calculator, we help engineers select materials with confidence before installation.
02 Application examplesChemical Dosing, Gas Blending & Process Safety
In an 85% phosphoric acid dosing line for sugar clarification, our linear stepper-driven metering valve replaced manual valves and adjusts acid flow in real time to match juice flow. For gas blending, high-resolution QKL proportional pressure regulators deliver turndown ratios of up to 1:500. Our closed-loop flow control system also enables online testing of storage-tank breather valves from DN20 to DN300 across -30 to +50 kPa, while ESPL gear flow meters measure chemical agents, electrolytes and coatings at ±0.3% F.S. at up to 200 bar.
03 ConclusionA Chemical-Process Partner in Pressure & Flow Control
We focus on application-oriented solutions rather than individual components. By combining material selection expertise, closed-loop PID control with 24-bit resolution and CE- and RoHS-compliant products, we help chemical manufacturers and laboratories build dosing, blending and vacuum systems that stay accurate, safe and scalable. From valve selection and corrosion assessment to system integration, our engineers support you from prototype to production line.