PM1 Cyclone
Apex Instruments offers a cyclone designed for sampling very fine particulate matter in the 0.5-1.5 micron range. The cyclone is based on the cyclone “V” from the multi-stage cyclone system designed and calibrated by Southern Research Institute under contract for the EPA.
The design has been modified to accept the nozzles from the PM 2.5 cyclone, which has been expanded to a set of 12 different size nozzles. The sample flow rate must be maintained, in which the constant rate determines the actual “D50” cut-point. The cyclone is followed by a 47-mm filter assembly. Quartz or PTFE-coated glass fiber filters should be used to minimize reactivity with the flue gas. The cyclone and nozzles are constructed from grade 316 stainless steel with Viton o-rings. Other materials are available upon request for corrosive or high-temperature applications.
**PM2.5 Cyclones require a 4-inch port.**
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