Need to monitor the flow of a liquid and turn it off when it reaches a preset rate? This flow switch from RS PRO uses a spring-supported paddle with an attached magnet to assess rate of flow. When the rate approaches your predetermined value, the paddle's magnet nears another magnet with opposite polarity located outside the flow chamber. This second magnet is connected to a powerful microswitch, which can alter the flow when the rate is either above or below the preset value.

The paddle and other functional parts of the device are made from corrosion-resistant stainless steel, to keep out pollution. The switch features relatively low pressure loss and can be used to monitor water, gas and oil.

This kind of switch is mostly used to indicate when part of a system isn't working properly. It's commonly found in cooling, heating and ventilation equipment.

• Paddle flow switch
• Monitors the flow of gas and liquid
• Maximum flow rate of 18 L/min
• Minimum flow rate of 14 L/min
• Maximum pressure of 25 bar
• Body made from corrosion-resistant nickel-plated brass
• Functional parts made from stainless steel
• 1 in British Standard Pipe (BSP) female connection
• DIN 43650-A plug
• Maximum operating temperature of +110˚C
• Supply voltage of 250 V
• Current rating of 5 A
• IP65 rating (resistant to dust and water spray)
• Hermetic separation of electrical and hydraulic components
• Height of 92 mm
• Length of 50 mm
• Width of 12 mm
• Weight of 0.4 kg
• Conforms to ANSI/ESD S20.20:2014 and BS EN 61340-5-1:2007 Electrostatic Control Standards

RS PRO is our own brand range and brings you a wide range of high-quality, great value products offering you more choice. Trusted by engineers all over the world, every part of every RS PRO product has been rigorously tested against demanding industry standards