Pipe Flow Switch for Fire Sprinkler System

This pipe flow switch is used to detect a flow of water through a sprinkler system. It transmits an electrical impulse to activate an audible or visual alarm and has a feature that minimizes false alarms. The red tamper-proof switch housing includes a flow paddle. The adjustable pneumatic retard feature can be set from 0 to 70 seconds. Can be used on steel and copper pipes in a variety of sizes specified by the model number.