Adjustable paddle control for flexible fit: The number of paddles and the length of trimmed paddles can be adjusted to suit different pipe diameters and flow rates, enabling accurate sensing and reliable operation across installations. SPDT switching action for reliable control: When the flow rate exceeds the set value, the fluid pushes the paddle, driving the internal mechanism to operate the microswitch. The SPDT contacts switch, opening one circuit and closing the other to feed alarms or downstream equipment. Brass housing for durability: The shell is made of brass, providing strength, durability and resistance to wear, substantially extending service life in demanding environments. Precise workmanship and easy installation: The water flow switch features burr, smooth surfaces, compact size, and simple mounting for straightforward installation and maintenance. Practical applications Commercial and residential water systems: Monitor flow and trigger pump start/stop or alarms when flow reaches the set threshold to protect equipment and ensure system efficiency. Irrigation and agricultural lines: Use to regulate pump operation based on flow rate, preventing dry running and ensuring consistent water delivery. Industrial fluid handling: Integrate with control circuits and valves to respond to flow changes, safeguarding downstream equipment and maintaining process control.