Industrial UFC-8561 Mass Flow Controller

The UFC-8561 Mass Flow Controller from CELERITY (8560 Series) is a 20 L/min Argon mass flow controller that precisely regulates Argon gas flow in process equipment and test benches. Designed for compact systems, it features a 1.125-inch footprint and a 9-pin network interface with a C-Seal fitting for reliable, gas-tight connections. Within the 8560 Standard Flow family, UFC-8561 variants exist with gas-specific configurations and different full-scale ranges depending on the gas, examples include UFC-8561C variants calibrated for 100 SCCM with Cl2 and other gases, while some catalog entries describe a 20 L/min Argon version listed as "20L Ar." As of distributor data, CELERITY/Unit Instruments lists UFC-8561 as discontinued by the manufacturer, with remaining stock appearing as legacy inventory.