Stories & Features
Understanding the specifics of fluid flow through a valve becomes increasingly crucial as passage sizes in the valves get smaller. Smaller flow passages are more difficult to align correctly and if misaligned can contribute to degraded chromatography and poor system performance.
We prepared the below examples of streamlines and slice velocity plots with a flow path through a valve. Simulations were run with flow rates of 300 nL/min, 2,000 nL/min, and 3.0 mL/min:
Figure 3: Streamlines with Nominal Alignment
Figure 4: Streamlines at 0.002” (0.05mm) Misalignment
Figure 5: Streamlines at 0.005” (0.13mm) Misalignment
IDEX Health & Science uses Computational Fluid Dynamics (CFD) simulations to evaluate and optimize valve designs virtually before the first parts are manufactured. By leveraging CFD simulations and analysis equipment we can:
The result is a custom valve that will give you a seamless flow path. Along with CFD testing, our team of Engineers, Scientists, and Technicians use tools including FMEA, CFD, FEA, DFX, Tolerance Analysis, DOE, and Weibull-based lifetime demonstration testing.
Partner with us to offer the highest value, shortest lead-time design considering material, design, manufacturability, and reliability for your custom rotary valve project.