History Made.
EPA Approves Partial Flow Dilution
Sierra’s BG® 3 Partial Flow Dilution(PFD)
system is now a legal alternative to Constant
Volume Sampling (CVS) for engine emissions
certification to 40CFR Part 1065 test procedures.
BG3 is the most widely used PFD technology
of its type and boasts an installed base of
hundreds of units globally.
BG 3 ®
Advantages over Traditional CVS:
• Using in place of CVS, connect other test
instruments: NOx, Bag-Units, Soot, etc.
• Satisfies ISO 8178 & 16183, 40 CFR 1065
& CFR Part 89, Euro 3, 4, 5 & 6
• Approx. 10% cost of ownership of CVS
• Approx. 1.0% to 0.1% annual energy usage
of CVS
• Use on any size engine, any fuel
• Patented PFD tunnel has ultra-low particulate
loss and no cleaning
• Easily portable from
cell to cell
California / 5 Harris Court, Monterey, CA 93940 / www.sierraemissions.com / 800.866.0200 / 831.373.0200 / fx 831.373.4402
Michigan / 11680 Rachel Lane, Dewitt, MI 48820 / info@sierraemissions.com / 517.669.0514 / cl 517.575.7485 / fx 517.669.5975
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