FLUID POWER: The Lee Co.’s new, miniature, calibrated IMH Insert Orifices for both liquids and gases are available in 2.5 and 5.5 mm diameters and are the smallest, self-retained flow restrictors available. They are designed to provide far more accuracy than an ordinary drilled hole. Accuracy is confirmed by 100 percent flow testing to ensure every orifice is within ±5 percent of its nominal flow rate. Constructed entirely of stainless steel, the new IMH Insert Orifices are available in a range of flow rates, with orifice sizes as small as 0.002 inch (.05 mm). Certain models are offered with an integral safety screen and installation is simple using Lee’s proven controlled expansion principle, which provides retention and creates a leak-tight seal that prevents bypass leakage.