Orifice flow restrictor Lee Visco Jet®

The Lee Visco Jet is one of our most unique innovations. It creates a highly complex fluid passage with a series of individual spin chambers and orifices. This provides an increase in flow passage as great as 25 times that of a corresponding (same Lohm rate) single-stage restrictor, with a corresponding reduction in velocity. Visco technology offers multiple benefits, including increased resistance to contamination and reduced erosion. Its design prevents cavitation and creates a degree of viscosity compensation. Visco Jets are available in flow rates up to 313,000 Lohms in a 0.187 inch diameter cartridge and up to 2.2 million Lohms in a 0.43 inch diameter cartridge. There is no other product available that can provide this level of restriction with such a sizable minimum passage in such a tiny package. Lee 18 Series Visco Jets are multi-orifice restrictors that incorporate slots and spin chambers to form a complex fluid passage which provides a reasonable degree of viscosity compensation without the use of any moving parts. In addition, the multi-orifice configuration provides a greater minimum passage for a given restriction and is better suited to handle much higher levels of contamination. Also, the fluid velocity is reduced by the series of restrictions, thus reducing the chances of cavitation. With robust screens protecting for bidirectional flow, Lee 18 Series Visco Jets are available calibrated to ±5% or ±10% tolerance and are offered in a wide range of Lohm rates from 11,200 to 313,000 Lohms.