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Flow Meters

“Thermal Mass or Calorimetric” flow meters are available from ¼” to 2” bore fitted into a stainless-steel measuring section (spool piece) with threaded or flanged process connections. The flow sensor is calibrated whilst installed in the measuring section to ensure optimum accuracy and performance.

An integral display shows flow rate and total in various volumetric or mass engineering units and also provides a scaled pulse and 4-20mA output. For pipe installations greater than 2” a hot-tap insertion version is available with flanged spool piece options. This flow meter provides a very wide operating flow range with a measuring error of 1.5%. A special precision calibration is available to provide a measuring error of < 1.5%. We can also offer this flow meter with full ATEX Approval. The calorimetric flow meter offers excellent accuracy and reliability at a very affordable price and on a short lead time too.

Flow Meters & Sensors

VD 500

Wet Compressed Air Flow Meter

Insert Type - Pipe Size 1/2” to 12”

VA 500

Compressed Air & Gas Flow Meter

Insert Type - Pipe Size 1/2” to 12”

VA 520

Compressed Air & Gas Flow Meter

Inline Type - Pipe Size 1/4” to 3”

VA 550 (ATEX)

Compressed Air & Gases Flow Meter

Insert Type - Pipe Size 3/4” to 12”

VA 570 (ATEX)

Compressed Air & Gas Flow Meter

Inline Type - Pipe Size 1/2” to 3”

VA 525

Compressed Air & Gas Flow Meter

Inline Type - Pipe Size 1/4” to 2”

VA 521

Compressed Air & Gas Flow Meter

Inline Type - Pipe Size 1/4” to 2”

DS400 Flow Meter Set

Station Flow Monitoring

Insert Type - Pipe Size 1/2” to 12”

Flow Measurement Accessories

Spot Drilling Collar / Drilling Jig

Proven flow meters for any application

CS Instruments has been an expert in the field of consumption measurement and flow measurement for many years and serves customers worldwide with the most advanced and field proven flow meters. For this reason, we offer a wide range of tools for almost any application needs.

An example: The consumption sensors of our VA550 and VA570 have been developed especially for rough industrial applications. Thanks to their robust, impact-resistant aluminum die-cast housing, these flow meters can easily be installed outdoors (IP65). On request, we also offer an ATEX approval for our flow meters. Those flow measurement devices can be used up to a maximum pressure of 100 bar and a maximum temperature of 180 °C. Our direct immersion variants are the ideal flow meters for existing compressed air and gas lines and can be easily installed and removed under pressure via a ½" ball valve. Those flow sensors are available with different shaft lengths and can also be used in very large pipelines > DN 1000 or rectangular ducts.

Why to choose a flow meter made by CS Instruments

Within the package of our flow measurement devices there is always a factory calibration certificate. Optionally, ISO certificates are also available, which can be traced back to the national standard. While ISO 1217 (1000 mbar, 20 ° C) is generally used to measure compressed air flows, DIN1343 (1013 mbar, 0 ° C) is used to measure most industrial gases. In addition to the consumption measurement, our flow meters can also be used for leakage measurement and leak detection. Therefore, our flow measurement devices are the perfect all-in-one tools to provide users with all necessary information on possible energy savings.

In contrast to many other working principles, the pressure loss resulting from our consumption measurement method is negligible. Each consumption meter can be equipped with various interfaces and thus ensures the connection to your control technology, data loggers or evaluation devices. These include e.g. 4 ... 20mA, pulse, Modbus RTU, M-BUS or even Ethernet. Our thermal mass flow meters can also cover a wide range of applications and media.

CS Instruments Flow Meter are suitable for gases like:

Air / Compressed air

Nitrogen (N2)

Argon (Ar)

Helium (He)

Carbon dioxide (CO2)

Oxygen (O2)

Hydrogen (H2)

Methane (CH4)

Laughing gas (N2O)

Propane (C3H8)

Natural gas (NG)