Profit butterfly valves are indicating valves, with 2 built-in supervisory microswitches for both grooved and wafer butterfly valves. One switch to guard the open valve position and the other switch to guard the closed open valve position. Provided with 2 tapped bosses that can serve as dry valve trim connection or pressure gauge connection. The valves are designed to be used in fire protection sprinkler systems and HVAC systems. They are FM approved, EAC certified and UL certified.