Insert flow sensor SDI

for ultra pure water and other industrial applications

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Bidirectional measurements possible
Very good price/performance ratio
1,5" up to 48"
Large temperature range and pressure rates

Medium:
Water

max. flow:
from 12 up to 220000 l/min

Temperature:
from 0 up to 150 °C

max. pressure:
from 0 up to 68 bar

Branch:
Water & waste water industry, Chemical industry

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General information

The SDI series flow sensor offers unparalleled performance for liquid flow measurement in closed pipe systems. The impeller sensor is well suited for flow control, flow monitoring and batch type applications. The flow meter can be mounted in pipe sizes of 1,5" up to 48".

This sensor can be used for water applications or as stainless steel version for corrosive fluids at high temperatures and pressure rates. Bidirectional flow measurement or battery driven systems are available as option.

Technical data

Mounting in pipe sizes DN	32 – 900** / 1,5 – 36“
Flow range in m/s (standard)	0,1 – 6
Flow range in m/s (low flow)	-
Accuracy (full scale / Qmax.)	±1 %
Accuracy (of reading)	-
Repeatability (full scale / Qmax.)	±0,5 %

	**or larger upon request

Videos

Impeller flow sensor SDI - Measuring principle

Measuring principle

Impeller meters

The series feature a six-bladed impeller design with a proprietary, non-magnetic sensing mechanism. The impeller shape coupled with the absence of magnetic drag provides accuracy and repeatability throughout the flow range of the sensors. As the liquid flow turns the impeller, a low impedance square wave signal is transmitted with a frequency proportional to the flow rate.