Flow Restrictors and Vents
Porous sintered Metal Flow Restrictors are used in Analytical and Process Instruments as calibrated leaks, timing devices, fuses, vents, breathers, and fluid metering devices. Gas flowing through a Porous Sintered Metal Flow Restrictors results in a Laminar flow that can control the gas flow more accurately and more reliably than other volumetric flow limiting products such as orifices and metering valves.
Orifice technology controls the gas flow by requiring that the inlet pressure is at least double the outlet pressure and results in higher fluid velocities and turbulent flow. Porous sintered metal flow restrictors are more resistant to contamination and plugging since there are hundreds of small flow paths available instead of a single orifice. Flow restrictors are used to provide a constant flow for a given set of pressure, temperature and fluid conditions. Porous Metal Flow restrictors are mechanically strong devices that do not have moving parts that can wear out or electrical components that require calibration.
Analytical and Process Instruments use porous sintered metal as Calibrated leaks, timing devices, fuses, vents, breathers, and fluid metering devices. Laminar flow control devices utilizing porous metal flow restrictors are more accurate and reliable than other volumetric flow limiting products such as orifices and metering valves that operate at higher fluid velocities. Orifice technology controls the gas flow by requiring that the inlet pressure is at least double the outlet pressure, thereby ensuring turbulent flow. Porous sintered metals are more resistant to contamination and plugging since there are hundreds of small flow paths available instead of a single orifice. Flow restrictors are used to provide a constant flow for a given set of pressure, temperature and fluid conditions and are mechanically strong devices that do not have mechanical or electrical components that can wear or would require calibration.
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