Lee precision flow restrictors are the most accurate flow orifices available. Each flow restrictor is 100% flow tested to ensure that every part is within +/-5% of its nominal flow rate, providing more consistent system performance and reducing the need for system rework. This provides far more flow accuracy than an orifice specified by hole tolerance. An ordinary hole held to a very tight tolerance will not result in a tight flow tolerance.
To improve accuracy, we offer models that are intended for gas or liquid applications. Gas restrictors are flow tested on clean dry nitrogen and liquid restrictors are tested on distilled water. Acceptance criteria are very high, and each orifice is tested in the direction of use to increase accuracy.
Because our components are used in such a large variety of applications, they’re available in a range of sizes, configurations, and materials. Each configuration is easy to install and guaranteed to provide consistent flow performance with every part.
Partner with The Lee Company and get much more than just a supplier of top-quality fluid control products. Our reliable technical support team is available every step of the way to help you find solutions, maximize productivity, and drive efficiency across your operations. Check out these resources specific to industrial manufacturers in every sector.
Always verify flow calculations by experiment.
*There are many parameters to consider when determining V-Factor. Click here for more information.