• Static Pressure Tip
• For 3/16" and 1/8" ID Plastic or Rubber Tubing

These static pressure tips are ideal for sensing the static pressure drop across industrial air filters and refrigerant coils. Here the probability of air turbulence requires that the pressure-sensing openings be located away from the duct walls to minimize impingement and aspiration, thus ensuring accurate readings. For a permanent installation of this type, the Dwyer No. A-301 or A-302 static pressure tip is used. It senses static pressure through radially drilled holes near the tip and can be used in airflow velocities up to 12,000 FPM. The angled tips shown have a 4" insertion depth. Each has four radially drilled .040" sensing holes. All except Model A-303 mount in 3/8" hole in duct. For portable use, a magnet holds No. A-303 is in place.