Vortex flow sensors with threaded connection

Operating instructions for SIKA vortex flow sensor type VVX32 - 40 MS - Vortex flow sensor with threaded connection in brass design

The SIKA VVX32 - 40 MS vortex flow sensor is ideal for measuring the flow of water in medium to high flow ranges. Thanks to its brass design and maintenance-free technology with no moving parts, the sensor is particularly suitable for large heat pumps and industrial systems. With a flow range of 12 to 400 l/min and nominal sizes from DN 32 to DN 40, the VVX32 - 40 MS offers high durability and precise measurements in demanding environments.

Mode of operation:

The sensor works by detecting vortices that form behind a disturbing body around which water flows. This Kármán vortex street is formed when water flows around the disturbing body. The distance between the vortices remainsconstant, and the frequency at which the vortices flow past a sensor depends on the flow velocity and is therefore proportional to the flow rate. The fully encapsulated piezoceramic sensor converts these vortices into an electrical frequency signal.

Features:

No mechanical wear: The sensor has no moving parts, which makes it extremely durable and low-maintenance.
Fully encapsulated piezoceramic sensor: The sensor has no direct contact with the medium, making it ideal for aggressive and corrosive environments.
Robust brass or stainless steel construction: Available in brass or stainless steel, the sensor offers high resistance to environmental influences.

Areas of application:

The Vortex flow sensor VVX32 - 40 MS is often used in large heat pumps and industrial plants where precise and maintenance-free flow measurement of water is required. Typical applications include:

Water management in industrial systems
Heating technology in large heat pump systems
Cooling and heating circuits in large buildings and production facilities

Available nominal widths:

DN 32
DN 40

Output signals for flow rate:

The VVX32 - 40 MS offers various options for flow output signals to ensure optimum integration into existing control systems:

Frequency output:
- Push-Pull
- NPN
Analog output:
- 0,5...3,5 V
- 0...10 V
- 4...20 mA

Output signals for temperature:

The sensor also offers the option of measuring the temperature of the medium. Various options are available for this:

Pt1000 2-wire, class B
NTC 10.74k, B-value 0/100 3450
Analog output 0.5...3.5 V (corresponds to 0...90 °C)

Advantages:

Maintenance-free: Thanks to its maintenance-free design, the sensor is a long-lasting solution for flow measurement without mechanical wear.
High resistance: The brass or stainless steel housing offers protection against corrosion and mechanical stress, making the sensor ideal for harsh industrial environments.
Flexibility: Thanks to the large number of frequency and analog outputs as well as temperature measurement options, the VVX32 - 40 MS is versatile and can be easily integrated into various systems.
Precise measurement: The sensor offers high measurement accuracy, even with large flow rates, making it ideal for industrial applications.
Simple integration: The various output signal options enable simple integration into existing control systems.

Technical data:

Flow range: 12...400 l/min
Nominal diameter: DN 32, DN 40
Frequency outputs:
- Push-Pull
- NPN
Analog flow outputs:
- 0,5...3,5 V
- 0...10 V
- 4...20 mA
Temperature outputs:
- Pt1000 2-wire, class B
- NTC 10.74k, B 0/100 3450
- 0.5...3.5 V (corresponds to 0...90 °C)

Summary:

The SIKA VVX32 - 40 MS vortex flow sensor offers a reliable, maintenance-free solution for precise flow measurement of water in industrial applications. Thanks to its robust design and flexible output signals for flow and temperature, the sensor is ideal for use in large heat pumps, heating systems and industrial plants. The high resistance to environmental influences and the durable, wear-free design make it an optimal choice for applications where durability and reliability are crucial.