Gear Flow Switch Now UL Listed, FM Approved!

Another milestone from Duyar: our Brass Threaded Switch product is now both UL Listed and FM Approved. Our commitment to the power of domestic production continues at full speed.

The Gear Flow Switch, one of Duyar's newest products, has received full certification from international standards following recent testing.

What is a Threaded Flow Switch?

The threaded water flow switch is a paddle-type switch designed for use in wet sprinkler systems with pipe sizes of 1" (25mm), 1 ¼" (32mm), 1 ½" (38mm), or 2" (50mm). It can also function as a cross-sectional water flow detector in larger systems. The unit includes two single-pole double-throw snap-action switches and an adjustable, instant reversible pneumatic retarder. The flow switch can be installed in both horizontal and vertical positions.