The MA-WFS water flow detectors are UL and FM listed devices according to UL346 and FM1042- 2016 for indoor/outdoor use. The MA-WFS Series shall be mounted on any clear pipe span of the appropriate normal size, either a horizontal or vertical pipe. The indicators shall have a sensitivity in the range of 4-10 gallons per minute and a static pressure rating up to 450psi for 50mm thru 200mm pipes. The indicator shall respond to water flow in the specified direction after a preset time delay that is field adjustable. The retard structure shall be a sealed mechanical pneumatic unit with visual time delay adjustment.

- 2’, 2.5’’, 3’’, 4’’, 6’’, 8’’ pipe size, 

- 1.25’’ and 2’’ hole size options
- Max3.1Mpa (450psi) working pressure
- High sensitivity of 15.0-37.5L/min (4-10GPM)
- 100% Synchronized two sets microswitch
- Delay time from 0 to 90S