Float type pressure gauge (0.001 ～ 0.25MPa, class 0.05) Model: CHW10-Y047
Floating ball pressure gauge Floating ball pressure gauge is a pneumatic load type pressure gauge that uses compressed air or nitrogen as the pressure source and takes the pressure acting area of ​​the lower part of the sphere when the precision floating ball is in working state as the effective area of ​​the floating ball. As shown in Figure 1, the precision float is placed inside the cylindrical nozzle. The special weight acts on the top of the sphere through the weight holder. The air pressure in the nozzle acts on the lower part of the sphere to float the float in the nozzle. When the gravity generated by the special weight with known mass balances the force of the air pressure, the floating ball pressure gauge will output a stable and accurate pressure value. Medical Equipment Package Bag,Ultraviolet Disinfection Take-Out Bag,Household Medical Supplies Storage Bag,Portable Uv Disinfection Bag Dongguan Mingpin Traveling Appliance Company , https://www.mingpinsuitcase.com
(Picture 1) Schematic diagram of the floating ball pressure gauge When increasing or decreasing the weight on the weight holder of the floating ball pressure gauge, the balance state of the measurement system will be changed, causing the floating ball to fall or rise, and the gas flow into the atmosphere The pressure changes immediately below, and the flow regulator will change the inflow of gas in time and accurately to make the system reach equilibrium again, keep the effective area of ​​the float constant, and maintain between the output pressure and the weight load Proportional relationship. Ensure the high accuracy of the floating ball pressure gauge.
Compared with piston pressure gauges, float type pressure gauges have the following characteristics: 1. The float type pressure gauges have built-in automatic flow regulators. After adding or subtracting weights, there is no need to perform any operation to achieve accurate output pressure. 2. The floating ball does not drop during work, and it can continuously and accurately output accurate pressure signals; 3. The floating ball pressure gauge has a self-regulating function of flow rate, and its accuracy has nothing to do with the operator's technical level; The floating ball is suspended in the nozzle, and the ball and the nozzle are in a non-contact state. The friction is small, the repeatability is good, the resolution is high, and the need to rotate the weight is eliminated. This is a unique feature of the floating ball pressure gauge; 5. During the work process, the air flow can continuously self-clean the floating ball body to ensure the high reliability of the instrument. The chassis of the float type pressure gauge is mounted on a box-shaped base (shown in Figure 2), and the chassis is the work surface of the pressure gauge. A level meter and a control valve are arranged on the side, and a gas source interface is arranged on the side for connecting the pressure gauge and the pressure source.
The float type pressure gauge is equipped with a weight frame marked with 0.001Mpa and 0.005Mpa (as shown in Figure 3). Output pressure range: 0.001 ～ 0.25MPa
Technical Parameters of Float Pressure Gauge Item Parameter Output Pressure Range (MPa) 0.001 ～ 0.25
Accuracy class (%) ± 0.05
Working temperature (℃) 15 ～ 30
Temperature coefficient (/ ℃) 1.7 × 10-5
Rated air supply pressure (MPa) 0.5
Maximum air pressure (MPa) 0.7
Minimum air source pressure (MPa) 1.5 times the output pressure (0.3MPa when below 0.3MPa)
Air consumption at rated air supply pressure (l / h) ≤150
Dimensions (mm) 380 × 240 × 260
Weight (kg) ≈15