Type VT15 Turbine flow sensors with threaded connection Design for HVAC and industrial applications 2.. .40l/min DN 15

Hall effect or inductive proximity sensor / Nominal pressure up to 300 bar / For media temperatures up to 150 °C

The SIKA turbine flow sensor type VT15 is used for flow measurement and dosing of water and water mixtures and finds application in many areas such as:

- Monitoring of cooling circuits in mechanical and plant engineering

- Water treatment

- Cleaning processes

- Dosage

Thanks to its compact dimensions and high measuring accuracy, it offers convincing advantages compared to conventional water meters:

- A temperature sensor can be integrated in the housing, which saves additional installation costs.

- The maximum media temperature of 120 °C provides sufficient safety for all operating conditions.

The liquid flowing into the turbine flow sensor is split into partial jets by the guide vanes. These impinge uniformly from different directions on the impeller and set it rotating. The speed of the impeller is now converted into an electrical pulse signal (frequency). The impeller is fitted with stainless steel pins (VTH, VTM, VTP) or magnets (VTI). A Hall-effect sensor (VTH, VTM, VTP) or an inductive proximity switch (VTI) detects the rotary motion.

A flow-proportional frequency signal (square-wave signal) is available. Due to the uniform incident flow of the bearing, the forces largely cancel each other out, reducing wear to a minimum. The extremely hard bearing materials, sapphire and carbide, also guarantee an exceptional service life.

The product is available with a nominal diameter of DN 15 and offers various materials for the pipe section, including PPO Noryl, brass and stainless steel.

The maximum permissible media temperatures vary depending on the material and are between 85°C and 150°C. The nominal pressure is PN 10 and the maximum operating pressure is 300 bar.

Various process connections are available, including G¾ male thread with union nuts and flat gaskets or G¾ female thread.

For flow measurement there is the option of a Hall effect sensor or an inductive proximity sensor. The output signal can be specified as a square wave signal NPN open collector or square wave signal PNP open collector.

The electrical connection is made either via a 1.5 m PVC cable with shielding and a maximum temperature of 70°C or a 1.5 m silicone cable with shielding and a maximum temperature of 150°C.

Various sensors are available for temperature measurement, including Pt100, Pt1000 or without sensor. The temperature sensor connection can be designed as a plug-in connection M8 or PVC sheathed cable. Furthermore, there is the option to integrate a sieve filter.

In addition, various add-on electronics are available, including switching output VE, switching output VE with pulse output or transmitters with a current output span of 4...20 mA and a flow rate of 0...5 l/min to 0...40 l/min. It can also be ordered without top-mounted electronics.

Nominal width

DN 15

Material pipe piece

PPO Noryl

Brass

Stainless steel

Media temperature

max. 85 °C

max. 120 °C

max. 150 °C

Nominal pressure

PN 10