The FS22LF is a 22mm flow detection switch designed for use in liquid flow systems at pressures up to 10 bar and temperatures up to 85°C. It features a moving magnet and fixed reed switch design with low flow restriction, constructed from acetal resin in black color. The switch has a must-operate flow rate of 1.75 liters/min (0.47 US Gal/min) and a must-release flow rate of 0.75 liters/min (0.20 US Gal/min), with a 25cm PVC-insulated cable connection. Electrically, it provides normally-open contact form with a maximum switching power of 25 VA, maximum AC voltage of 240V, maximum DC voltage of 120V, and maximum switching current of 0.6A. The FS22LF is WRAS-approved for cold and hot water applications up to 60°C and is ideal for water supply systems, heating systems, and other liquid flow monitoring applications where reliable flow detection is required.