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 produces a Velocity Pressure signal, from which Velocity can be calculated.
L-Type Pitot Tubes
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.
|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.|
Static Pressure Measurement
Volume Flow Measurement