Cynergy3 FS22 Flow Switch Series

  • Cynergy3

Product Features

  • Inline, normally-open flow switches
  • WRAS Approved up to 60°C
  • Operating pressure up to 10 bar
  • Made of acetal resin (refer to chemical compatibility chart in Technical Library)
  • Can be mounted horizontally or vertically (upward flow)
  • UL


The FS22 series of normally open flow switches by Cynergy3 utilises a fixed reed switch and a moving magnet to enable accurate flow detection, while ensuring minimal fluid flow restriction. These inline switches are designed for operation in liquid flow systems with pressure of up to 10 bar (not suitable for systems containing significant amount of solid particles) and come in 22mm tube size with a low-flow version available. The FS15 series flow switches can be operated in temperatures of up to 85°C and are WRAS approved for use in cold and hot water up to 60°C.

  • Normally open, inline flow detection switches
  • 22mm tube size
  • Low flow version available
  • Maximum operating pressure of 10 bar
  • Temperature range of -20°C to 85°C (WRAS approved to 60°C)
  • Maximum switching voltage of 240V AC and 120V DC
  • Can be mounted with horizontal or vertical (upward) flow direction

Customisation is available on this product – speak to our technical sales team to discuss your requirement.

The below table gives the full specifications for each resistor model available including the Cynergy3 FS22 series:

Cynergy3 FS15 series specifications

Calculators and Convertors

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Weight 62.00000 kg
Dimensions 22.00 x 114.00 x 58.00mm

Package / Size

Series / Model

Temperature Range (°C)



Voltage Rating


RoHS Compliant Product – Cynergy3

This product is available fully compliant to the RoHS EU directive 2011/65/EU.

Cynergy3 FS series Ordering Info

Below is a part number break down for the Cynergy3 FS Flow Switch series:

Cynergy3 FS Series ordering information

Cynergy3 FS Series technical library

We are pleased to provide you with a range of additional content including product datasheets, case studies, white papers and application notes for your reference. Please see below for the latest content available:



Cynergy3 FS Flow Switch Series Datasheet
Chemical compatibility sheet for Cynergy3 switches and sensors

Cynergy 3 Video Library

We are pleased to provide you with a range of videos, please see below for the latest content available:

Sensata & Cynergy3 – Empowering Innovations

More information about Sensata Technologies and Cynergy3 and the products they have to offer.

Sensata & Cynergy3 – Wireless Sensors

More information about the capabilities and benefits of suing wireless technologies to advance your sensor solutions.

  • Energy
  • Cynergy3

Cynergy3 FS22 Flow Switch Series

Please be advised that due to the ongoing supply issues with raw materials affecting the global electronics industry, as well as an increase in orders received by our manufacturing partners, a large number of products are facing increased lead times in recent months. For the latest lead time and stock availability, please contact one of our engineers who will be happy to discuss lead times further and the potential for alternative parts.