Home / Products / Pitot Tubes / L-Type Pitot Tube
L-Type Pitot Tube
L-Type Pitot Tubes produce a Velocity Pressure signal and are used to determine the accurate measurement of air flow in a closed conduit system.
L-Type Pitot Tubes feature a modified ellipsoidal head with a single forward facing hole (sensing total pressure) and a ring of side holes (sensing static pressure) to determine the accurate measurement of air flow in a closed conduit system, adopting the traverse method. It is only necessary to drill a small access hole for insertion of the probe in the duct (or stack), at the point where the flow measurement is required. The Pitot tube produces a velocity pressure signal, from which velocity can be calculated.
| Magnification Factor (M) | 0.997 ±0.001 (approximated to 1 in most cases) |
| Sizes Available | Four diameters 2.3mm, 4.0mm, 8.0mm & 9.5mm in lengths from 200mm to 3mm |
| Temperature Range | Ø8.0 & 9.5mm up to 680°C continuously & 800°C intermittently Ø2.3 and 4.0mm up to 550°C |
| Materials | Fully Stainless Steel Construction (Silver Brazed Joints on Ø2.3 and 4.0mm only) |
| Special Functions | Only requires an access hole 35mm, regardless of duct wall thickness Cast head gives more predictable result than a fabricated head. |
| Static Pressure Tapping doubles as a Direction Pointer | |
| Available with a 90° Bent Head or Fully Straight | |
| Extras Available | Integral Thermocouple to allow for simultaneous monitoring of duct air temperature and velocity with minimal disturbance. |
– Velocity measurement
– Static pressure measurement
– Volume flow measurement
