New type of low flow acid alkali resistant PTFE turbine flowmeter

New type of low flow acid alkali resistant PTFE turbine flowmeterThe body material is made of stainless steel or PTFE, suitable for measuring fluids that do not contain solid particles, are fibrous, and have high viscosity. It has high corrosion resistance and stability, and is suitable for measurement in various harsh environments; The sensor measures flow velocity from 0.3m/s to 10m/s to ensure high accuracy. The sensor uses (4-20) mA/RS485 output, and high-speed pulses are beneficial for signal transmission and anti-interference.

New type of low flow acid alkali resistant PTFE turbine flowmeterProduct working principle:

When passing through a pipeline, the fluid impacts the turbine blades, generating a driving torque that drives the turbine to rotate by overcoming friction torque and fluid resistance torque. Within a certain flow range and with a certain viscosity of the fluid medium, the rotational angular velocity of the turbine is proportional to the fluid velocity. Therefore, the fluid velocity can be obtained from the rotational angular velocity of the turbine, and the fluid flow rate through the pipeline can be calculated. The rotational speed of the turbine is detected by a sensor coil installed outside the casing. When the turbine blades cut the magnetic field lines generated by the permanent magnet steel inside the casing, it will cause changes in the magnetic flux in the sensing coil. The sensing coil sends the periodic change signal of the detected magnetic flux to the preamplifier, amplifies and shapes the signal, generates a pulse signal proportional to the flow rate, and sends it to the unit conversion and flow accumulation circuit to obtain and display the accumulated flow rate value; At the same time, the pulse signal is also sent to the frequency current conversion circuit, where it is converted into an analog current to indicate the instantaneous flow rate value.

New type of low flow acid alkali resistant PTFE turbine flowmeterProduct Features:

·(4-20) mA/RS485 output

·Adopting a five blade impeller design for better dynamic balance and more stable measurement accuracy, the overcurrent part has high chemical corrosion resistance and is suitable for flow velocities (0.3-10) m/s

Easy to install with LP65 protection level, suitable for harsh on-site environments

Good reliability, maintenance free

8.1 Technical Data Scope of Work Pipeline Size Range Linear Repeatability Accessories 0-type Ring Shaft and Bearing

Impeller, bracket working voltage, current consumption, power supply impedance, cable type

Stainless steel working temperature Stainless steel 0.3 to 10m/s DN06 to DN65

@± 0.5% of maximum range at 25 ° C (77 ° F)

@± 0.4% of maximum range at 25 ° C (77 ° F)

Stainless steel FKM, optional EPDM rubber zirconia 99% polyvinylidene fluoride

24V DC power, filtered and regulated

<60mA (current version is 12V DC, no load)

The maximum impedance of the return line is 1125 ohms at 36 volts DC, 650 ohms at 24 volts DC, and 140 ohms at 12 volts DC, with a maximum cross-sectional area of 1.5 square millimeters

PN16 (232PS1) with metal accessories

Stainless steel: -15...+100 ° C (+5...+212 ° F) (if T ° ambient temperature ≤+45 ° C) or -15 +90 ° C (+5...+194 ° F) (if+45 ° C ≤ T ° ambient temperature ≤+60 ° C)