AFP series pitot tube Determination in mine ventilation network at any point in wind speed. Determination of mine ventilation network in any period of resistance. Performance appraisal for mine main fan, bureau fan machine. Mine methane drainage of fluid in the pipe volume were measured. Reference wind speed measured at the wind meter calibration hairdryer. AFP series pitot tube Pitot tube series Introduction The AEP is supporting the measuring instruments used in ventilation management, it can be used in conjunction with a variety of differential pressure gauge. AFP series pitot tube main technical indicators Project AFP-8A type AFP-8B-type AFP-6A type AFP-6B-type correction coefficient 0.990 to 1.000 measuring range (0 ~ 30) m / s Dimensions 8 × 144 × 430mm 8 × 144 × 600mm 6 × 108 × 430mm 6 × 72 × 250mm Weight 0.15kg 0.22kg 0.12kg 0.07kg