L/S Standard Pitot TubeDetailed product description：

L/S standard pitot tube technical parameters:

The coefficient of L-type pitot tube is between 0.99 and 1.01, and the coefficient of S-shape is between 0.81 and 0.86
Measure air flow velocity less than 40m/s and water flow velocity not exceeding 25m/s

purpose
In scientific research, production, teaching, environmental protection, purification rooms, mine ventilation, and energy management departments, pitot tubes are commonly used to measure pipeline wind speed and airflow velocity in furnace flues. After conversion, the flow rate is determined, and the water flow velocity in pipelines can also be measured. Using a pitot tube for speed measurement and flow determination has a reliable theoretical basis, is easy to use, accurate, and is a classic and widely used measurement method. In addition, it can also be used to measure the pressure of fluids.

structure
The L/S standard pitot tube is made up of two concentric tubes with different inner diameters. The straight end tail joint of the inner tube is a full pressure tube, and the side joint of the outer tube is a static pressure tube. The S-shaped pitot tube is welded with two tubes of the same diameter, with the full pressure end facing the airflow and the static pressure end facing away from the airflow. The coefficient number and static pressure joint marking number are marked at the joint, and should not be connected incorrectly during use. The side pointing rod is in the same direction as the measuring head, and the direction can be determined during use to ensure that the measuring head is aligned with the incoming flow direction.

Usage:
1. It is necessary to select the measurement point section correctly and ensure that the measurement point is located in a straight pipe section with smooth airflow. For this purpose, local components such as elbows and variable diameter pipes that measure the distance between the cross-section and the incoming flow direction should be greater than 4 times the diameter of the pipeline. Local bends and variable diameter structures in the downstream direction should be greater than twice the diameter of the pipeline.  
When measuring, the full pressure hole should be aligned with the direction of the airflow to indicate the direction of the rod. The insertion hole of the measuring point should avoid air leakage, which can prevent airflow interference on the section. Using a pitot tube can only measure the flow velocity at a certain point on the pipeline section. Due to the uneven distribution of flow rate on the section, more points should be measured on that section to obtain the average value.  
3. Test the smoothness before use. Regularly check the small static pressure hole to prevent impurities from blocking it. After use, clean the inner and outer pipes in a timely manner to ensure long-term good condition.  
The standard pitot tube calibration cycle is five years.