Type VVX G-thread Vortex flow sensors with threaded connection Plastic version DN 15...25 2.. .150 L/min

No mechanical wear. Flow sensor without moving parts for water. / Completely encapsulated piezoceramic sensor for vortex detection. No direct contact with the medium.

Operating instructions for SIKA vortex flow sensor type VVX G-thread - Vortex flow sensor with plastic version and threaded connection

The SIKA VVX G-thread vortex flow sensor is a reliable solution for flow measurement of water in low to medium flow ranges, especially in heating systems. The sensor is available in a robust plastic version and offers maintenance-free measurement as it has no moving parts. With a flow range of 2 to 150 l/min and various nominal widths, the VVX G-thread is suitable for a wide range of applications.

Mode of operation:

Behind a disturbing body around which the water flows, counter-rotating vortices are created, which detach at the edges of the disturbing body and form a so-called Kármán vortex street. The distance between the vortices is constant and the frequency of the vortices depends on the flow velocity, which makes it proportional to the flow rate. The piezoceramic sensor detects these vortices and converts them into an electrical frequency signalthat is used for flow monitoring.

Features:

No mechanical wear: As there are no moving parts in the sensor, there is no mechanical wear, resulting in a longer service life and lower maintenance costs.
Fully encapsulated piezoceramic sensor: The sensor has no direct contact with the medium, making it ideal for aggressive environments.
Lightweight plastic housing: The plastic construction makes the sensor particularly lightweight and corrosion-resistant.

Areas of application:

The Vortex flow sensor VVX G-thread is used in a variety of heating applications and water supply systems, including:

Heating systems for monitoring and controlling water flows
Water supply in residential buildings and commercial facilities
Flow measurement in HVAC systems (heating, ventilation, air conditioning)

Available nominal widths:

DN 15
DN 20
DN 25

Output signals for flow rate:

The VVX G-thread offers various options for flow output signals:

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

Output signals for temperature:

The VVX G-thread also offers several options for temperature measurement:

Pt1000 2-wire sensor, 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 the design without moving parts, there is no mechanical wear and tear, resulting in a longer service life.
Corrosion-resistant: The plastic design protects the sensor from corrosion and makes it ideal for use in humid and aggressive environments.
High measuring accuracy: The piezoceramic sensor offers precise flow measurements and can simultaneously detect the temperature of the medium.
Flexible output signals: The various options for frequency and analog outputs allow easy integration into existing control systems.
Versatile application: Suitable for heating technology, water supply systems and industrial applications where accurate and reliable flow measurement is required.

Technical data:

Flow range: 2...150 l/min
Nominal sizes: DN 15, DN 20, DN 25
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 VVX G-thread vortex flow sensor offers a reliable, maintenance-free solution for measuring the flow of water in heating systems and HVAC applications. With its wear-free design, robust plastic construction and multiple output signals for flow and temperature, the VVX G-thread is an excellent choice for monitoring water systems. Its durability and high measurement accuracy make it a versatile sensor for a wide range of industrial and commercial applications